0001567683-22-000006 | 10-K | XBRL Viewer

Print Document View Excel Document

Consolidated Statements of Operations - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Operating Revenues
Total operating revenues	$ 1,286	$ 1,199	$ 1,032
Operating Costs and Expenses
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	451	366	337
Depreciation, amortization and accretion	509	428	401
Impairment losses	6	24	33
General and administrative	40	34	29
Transaction and integration costs	7	9	3
Development costs	6	5	5
Total operating costs and expenses	1,019	866	808
Operating Income	267	333	224
Other Income (Expense)
Equity in earnings of unconsolidated affiliates	32	7	83
Impairment loss on investment	0	(8)	0
Gain on sale of unconsolidated affiliate	0	49	0
Other income, net	3	4	9
Loss on debt extinguishment	(53)	(24)	(16)
Interest expense	0	0	(1)
Total other expense, net	(63)	(52)	(102)
Income Before Income Taxes	(65)	(54)	(104)
Income tax expense (benefit)	10	8	(8)
Net Loss	(75)	(62)	(96)
Less: Net loss attributable to noncontrolling interests	(126)	(87)	(85)
Net Income (Loss) Attributable to Clearway Energy, Inc.	$ 51	$ 25	$ (11)
Earnings Per Share Attributable to Clearway Energy, Inc. Class A and Class C Common Stockholders
(Loss) Earnings per weighted average common share - basic and diluted (in dollars per share)	$ 0.44	$ 0.22	$ (0.10)
Common Class A
Earnings Per Share Attributable to Clearway Energy, Inc. Class A and Class C Common Stockholders
Weighted average number of common shares outstanding - basic and diluted (in shares)	35	35	35
Weighted average number of common shares outstanding - diluted (in shares)	35	35	35
Dividends per common share (in usd per share)	$ 1.33	$ 1.05	$ 0.80
Common Class C
Earnings Per Share Attributable to Clearway Energy, Inc. Class A and Class C Common Stockholders
Weighted average number of common shares outstanding - basic and diluted (in shares)	82	80	74
Weighted average number of common shares outstanding - diluted (in shares)	82	81	74
Dividends per common share (in usd per share)	$ 1.33	$ 1.05	$ 0.80

Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Income Statement [Abstract]
Net Income (Loss), Including Portion Attributable to Noncontrolling Interest	$ (75)	$ (62)	$ (96)
Other Comprehensive Income, net of tax
Unrealized gain on derivatives, net of income tax (expense) benefit of $(3), $— and $1	19	1	7
Other comprehensive income	19	1	7
Comprehensive Loss	(56)	(61)	(89)
Less: Comprehensive loss attributable to noncontrolling interests	(115)	(87)	(81)
Comprehensive Income (Loss) Attributable to Clearway Energy, Inc.	$ 59	$ 26	$ (8)

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income (loss) and other comprehensive income (loss), attributable to noncontrolling interests. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

Amount after tax of increase (decrease) in equity from transactions and other events and circumstances from net income and other comprehensive income. Excludes changes in equity resulting from investments by owners and distributions to owners.

+ References + Details

- Definition

Amount after tax and reclassification adjustments of other comprehensive income (loss).

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580

Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442407-227067

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123467817&loc=d3e21463-112644

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 17
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32136-110900

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(21))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=124507222&loc=d3e1436-108581

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 45
-Paragraph 20
-URI http://asc.fasb.org/extlink&oid=118261656&loc=d3e32211-110900

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 830
-SubTopic 30
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6450520&loc=d3e32583-110901

Reference 9: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124442411-227067

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(23))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(19))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

+ Details

- Definition

The consolidated profit or loss for the period, net of income taxes, including the portion attributable to the noncontrolling interest.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(g)(1)(ii))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1A
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669619-108580

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (a)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22663-107794

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(i))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 12: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=124431353&loc=SL124452729-227067

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 230
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=123570139&loc=d3e3000-108585

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 45
-Paragraph 19
-URI http://asc.fasb.org/extlink&oid=123454820&loc=SL4569616-111683

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 323
-SubTopic 10
-Section 50
-Paragraph 3
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=114001798&loc=d3e33918-111571

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 18: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 19: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 205
-SubTopic 20
-Section 50
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=109222650&loc=SL51721683-107760

Reference 20: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (b)(2)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22499-107794

Reference 21: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 825
-SubTopic 10
-Section 50
-Paragraph 28
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123596393&loc=d3e14064-108612

Reference 22: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 235
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-05(b)(2))
-URI http://asc.fasb.org/extlink&oid=120399901&loc=d3e537907-122884

Reference 23: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 24: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section 45
-Paragraph 1B
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124509347&loc=SL7669625-108580

Reference 25: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iv))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 26: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(iii)(A))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 27: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(5))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 28: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1B
-Subparagraph (SX 210.13-02(a)(4)(iii)(B))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442552-122756

Reference 29: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 470
-SubTopic 10
-Section S99
-Paragraph 1A
-Subparagraph (SX 210.13-01(a)(4)(ii))
-URI http://asc.fasb.org/extlink&oid=124359900&loc=SL124442526-122756

Reference 30: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 50
-Paragraph 1A
-Subparagraph (c)(1)
-URI http://asc.fasb.org/extlink&oid=109239629&loc=SL4573702-111684

Reference 31: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4J
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591551-111686

Reference 32: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 810
-SubTopic 10
-Section 55
-Paragraph 4K
-URI http://asc.fasb.org/extlink&oid=120409616&loc=SL4591552-111686

Reference 33: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22658-107794

+ Details

Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Statement of Comprehensive Income [Abstract]
Unrealized gain on derivatives, income tax expense	$ (3)	$ 0	$ 1

Consolidated Balance Sheets - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Current Assets
Cash and cash equivalents	$ 179	$ 268
Restricted cash	475	197
Accounts receivable — trade	144	143
Inventory	37	42
Current assets held-for-sale	631	0
Prepayments and other current assets	65	58
Total current assets	1,531	708
Property, plant and equipment, net	7,650	7,217
Other Assets
Equity investments in affiliates	381	741
Intangible assets for power purchase agreements, net	2,419	1,230
Other intangible assets, net	80	140
Deferred income taxes	95	104
Derivative instruments	6	1
Right-of-use assets, net	11	11
Other non-current assets	101	114
Total other assets	3,632	2,667
Total Assets	3,316	2,720
Current Liabilities
Current portion of long-term debt	772	384
Accounts payable — trade	74	72
Accounts payable — affiliates	107	17
Derivative instruments	46	38
Accrued interest expense	54	44
Current liabilities held-for-sale	494	0
Accrued expenses and other current liabilities	84	79
Total current liabilities	1,631	634
Other Liabilities
Long-term debt	6,939	6,585
Deferred income taxes	13	0
Derivative instruments	196	135
Long-term lease liabilities	561	345
Other non-current liabilities	5	5
Total other liabilities	7,882	7,243
Total Liabilities	16	5
Commitments and Contingencies
Stockholders' Equity
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued	0	0
Class A, Class B, Class C and Class D common stock, $0.01 par value; 3,000,000,000 shares authorized (Class A 500,000,000, Class B 500,000,000, Class C 1,000,000,000, Class D 1,000,000,000); 201,856,166 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,779,021, Class D 42,738,750) at December 31, 2021 and 201,635,990 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,558,845, Class D 42,738,750) at December 31, 2020	1	1
Additional paid-in capital	1,872	1,922
Accumulated deficit	(33)	(84)
Accumulated other comprehensive loss	(6)	(14)
Noncontrolling interest	1,466	890
Total Stockholders' Equity	3,300	2,715
Total Liabilities and Stockholders' Equity	$ 3,316	$ 2,720

Consolidated Balance Sheets (Parenthetical) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Par value - preferred stock (in usd per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Common stock, shares authorized (in shares)	3,000,000,000	3,000,000,000
Common stock, shares issued (in shares)	201,856,166	201,635,990
Common stock, shares outstanding (in shares)	201,856,166	201,635,990
Common Class A
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000
Common stock, shares issued (in shares)	34,599,645	34,599,645
Common stock, shares outstanding (in shares)	34,599,645	34,599,645
Common Class B
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000
Common stock, shares issued (in shares)	42,738,750	42,738,750
Common stock, shares outstanding (in shares)	42,738,750	42,738,750
Common Class C
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	81,779,021	81,558,845
Common stock, shares outstanding (in shares)	81,779,021	81,558,845
Common Class D
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	42,738,750	42,738,750
Common stock, shares outstanding (in shares)	42,738,750	42,738,750

Consolidated Statements of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Cash Flows from Operating Activities
Net income (loss)	$ (75)	$ (62)	$ (96)
Adjustments to reconcile net loss to net cash provided by operating activities:
Equity in earnings of unconsolidated affiliates	(32)	(7)	(83)
Distributions from unconsolidated affiliates	38	61	34
Depreciation, amortization and accretion	509	428	401
Amortization of financing costs and debt discounts	14	15	17
Amortization of intangibles and out-of-market contracts	146	90	71
Loss on debt extinguishment	53	24	16
Reduction in carrying amount of right-of-use assets	11	4	7
Gain on sale of unconsolidated affiliate	0	(49)	0
Impairment losses	6	32	33
Change in deferred income taxes	12	8	(8)
Changes in derivative instruments	28	44	85
Loss on disposal of asset components		3	9
Changes in prepaid and accrued liabilities for tolling agreements	5	(1)	1
Changes in other working capital	(14)	(45)	(10)
Net Cash Provided by Operating Activities	(2)	(3)	(5)
Cash Flows from Investing Activities
Acquisitions, net of cash acquired	(533)	0	(100)
Partnership interest acquisition	0	0	(29)
Acquisition of Drop Down Assets, net of cash acquired	(229)	(122)	(161)
Buyout of Wind TE Holdco noncontrolling interest	0	0	(19)
Capital expenditures	(151)	(124)	(228)
Asset purchase from affiliate	(21)	0	0
Return of investment from unconsolidated affiliates	47	79	56
Investments in unconsolidated affiliates	0	(11)	(13)
Proceeds from sale of assets	0	90	20
Consolidation of DGPV Holdco 3 LLC	0	17	0
Other	22	9	6
Net Cash Provided by (Used in) Investing Activities	2	(17)	128
Cash Flows from Financing Activities
Contributions from noncontrolling interests, net of distributions	967	247	174
Buyout of Repowering Partnership II LLC noncontrolling interest	0	(70)	0
Proceeds from the issuance of common stock	0	62	100
Payments of dividends and distributions	(268)	(211)	(155)
Proceeds from the revolving credit facility	622	265	152
Payments for the revolving credit facility	(377)	(265)	(152)
Proceeds from issuance of long-term debt	1,728	1,084	1,215
Payments of debt issuance costs	(20)	(20)	(25)
Payments for long-term debt	0	(45)	(220)
Other	7	0	0
Net Cash Provided by (Used in) Financing Activities	0	17	(120)
Reclassification of Cash to Assets Held-for-Sale	(14)	0	0
Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash	0	(3)	3
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	0	3	0
Cash, Cash Equivalents and Restricted Cash at End of Period	0	0	3
Supplemental Disclosures
Interest paid, net of amount capitalized	(337)	(325)	(313)
Non-cash investing and financing activities:
Reductions to fixed assets for accrued capital expenditures	(32)	(18)	(2)
Non-cash adjustment for change in tax basis	(7)	21	28
Non-cash contributions from CEG, net of distributions	$ 31	$ 6	$ 36

Consolidated Statements of Stockholders Equity - USD ($) $ in Millions	Total	Cumulative Effect, Period of Adoption, Adjustment	DGPV Holdco 3	Mesquite Star HoldCo LLC	Langford	Rosamond Central	Repowering Partnership II LLC	Aqua Acquisition	Rattlesnake TE Holdco LLC	Black Rock Drop Down	Tax Equity Investors	CEG	Preferred Stock	Common Stock	Additional Paid-In Capital	Accumulated Deficit	Accumulated Deficit Cumulative Effect, Period of Adoption, Adjustment	Accumulated Other Comprehensive Loss	Non-controlling Interest	Non-controlling Interest Cumulative Effect, Period of Adoption, Adjustment	Non-controlling Interest DGPV Holdco 3	Non-controlling Interest Mesquite Star HoldCo LLC	Non-controlling Interest Langford	Non-controlling Interest Rosamond Central	Non-controlling Interest Repowering Partnership II LLC	Non-controlling Interest Aqua Acquisition	Non-controlling Interest Rattlesnake TE Holdco LLC	Non-controlling Interest Black Rock Drop Down	Non-controlling Interest Tax Equity Investors	Non-controlling Interest CEG
Beginning balance at Dec. 31, 2018	$ 2,224	$ (3)											$ 0	$ 1	$ 1,897	$ (58)	$ (2)	$ (18)	$ 402	$ (1)
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(96)															(11)			(85)
Unrealized gain on derivatives, net of tax	7																	3	4
Contributions from noncontrolling interests, net of distributions, cash											$ 242																		$ 242
Payment for interests	(19)														(5)				(14)
Drop Down Assets contingent consideration	(35)																		(35)
Distributions and returns of capital to CEG, NRG, net of contributions, cash	(68)																		(68)
Contributions from CEG, NRG, net of distributions, non-cash	36																		36
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	2														3	(1)
Proceeds from issuance of common stock	100														100
Non-cash adjustment for change in tax basis	28														28
Dividends, Common Stock	(155)														(87)				(68)
Ending balance at Dec. 31, 2019	2,263												0	1	1,936	(72)		(15)	413
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(62)															25			(87)
Unrealized gain on derivatives, net of tax	1																	1
Contributions from CEG, net of distributions, non-cash												$ 6																		$ 6
Contributions from noncontrolling interests, net of distributions, cash											240	6																	240	6
Distributions to noncontrolling interests, non-cash											(2)																		(2)
Payment for interests			$ (20)	$ 361	$ 76	$ 57	$ (70)														$ (20)	$ 361	$ 76	$ 57	$ (70)
Lighthouse Partnership Yield Protection Agreement	(15)														(15)
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	2														2
Proceeds from issuance of common stock	62														62
Non-cash adjustment for change in tax basis	21														21
Dividends, Common Stock	(211)														(84)	(37)			(90)
Ending balance at Dec. 31, 2020	2,715												0	1	1,922	(84)		(14)	890
Increase (Decrease) in Stockholders' Equity [Roll Forward]
Net income (loss)	(75)
Net income (loss)	(79)															51			(130)
Unrealized gain on derivatives, net of tax	19																	8	11
Contributions from CEG, net of distributions, non-cash												31																		31
Contributions from noncontrolling interests, net of distributions, cash											$ 676	$ 296																	$ 676	$ 296
Payment for interests				$ (120)					$ (117)	$ (137)												$ (198)					$ (117)	$ (153)
Lighthouse Partnership Yield Protection Agreement	15														15
Agua Acquisition								$ 273																		$ 273
APIC, Share-based Payment Arrangement, Increase for Cost Recognition	3														3
Non-cash adjustment for change in tax basis	(7)														(7)
Dividends, Common Stock	(268)														(155)				(113)
Ending balance at Dec. 31, 2021	$ 3,300												$ 0	$ 1	$ 1,872	$ (33)		$ (6)	$ 1,466

Nature of Business	12 Months Ended
Nature of Business	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Nature of business	Nature of Business Clearway Energy, Inc., together with its consolidated subsidiaries, or the Company, is a publicly-traded energy infrastructure investor in and owner of modern, sustainable and long-term contracted assets across North America. The Company is indirectly owned by Global Infrastructure Partners, or GIP. GIP is an independent infrastructure fund manager that makes equity and debt investments in infrastructure assets and businesses. The Company is sponsored by GIP through GIP's portfolio company, Clearway Energy Group LLC, or CEG. The Company is one of the largest renewable energy owners in the U.S. with over 5,000 net MW of installed wind and solar generation projects. The Company's over 9,000 net MW of assets also includes approximately 2,500 net MW of environmentally-sound, highly efficient natural gas-fired generation facilities as well as the Thermal Business. Through this environmentally-sound, diversified and primarily contracted portfolio, the Company endeavors to provide its investors with stable and growing dividend income. Substantially all of the Company's generation assets are under long-term contractual arrangements for the output or capacity from these assets. On October 22, 2021, Clearway Energy Operating LLC entered into a binding agreement to sell the Thermal Business to KKR, or the Thermal Disposition. For further details of the Thermal Disposition, refer to Note 3, Acquisitions and Dispositions. The Company consolidates the results of Clearway Energy LLC through its controlling interest, with CEG's interest shown as non-controlling interest in the consolidated financial statements. The holders of the Company's outstanding shares of Class A and Class C common stock are entitled to dividends as declared. CEG receives its distributions from Clearway Energy LLC through its ownership of Clearway Energy LLC Class B and Class D units. From time to time, CEG may also hold shares of the Company's Class A and/or Class C common stock. As of December 31, 2021, the Company owned 57.65% of the economic interests of Clearway Energy LLC, with CEG owning 42.35% of the economic interests of Clearway Energy LLC. For further discussion, see Note 12, Stockholders' Equity. The following table represents the structure of the Company as of December 31, 2021:

Summary of Significant Accounting Policies

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Summary of Significant Accounting Policies

Basis of Presentation and Principles of Consolidation

The Company's consolidated financial statements have been prepared in accordance with GAAP. The FASB ASC is the source of authoritative GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative GAAP for SEC registrants.

The consolidated financial statements include the Company's accounts and operations and those of its subsidiaries in which it has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting interests. As such, the Company applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a variable interest entity, or VIE, should be consolidated.

Cash, Cash Equivalents and Restricted Cash

Cash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase. Cash and cash equivalents held at project subsidiaries was $146 million and $149 million as of December 31, 2021 and 2020, respectively.

The following table provides a reconciliation of cash, cash equivalents and restricted cash reported within the consolidated balance sheets that sum to the total of the same such amounts shown in the consolidated statements of cash flows:


	Year ended December 31,
	2021		2020
	(In millions)
Cash and cash equivalents	$	179	$	268
Restricted cash	475		197
Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	654	$	465

Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use. As of December 31, 2021, these restricted funds comprised of $246 million designated to fund operating expenses, approximately $34 million designated for current debt service payments and $131 million restricted for reserves including debt service, performance obligations and other reserves as well as capital expenditures. The remaining $64 million is held in distributions reserve accounts.

In 2020, the members of the partnerships holding the Oahu Solar and Kawailoa Solar projects submitted applications to the state of Hawaii for refundable tax credits based on the cost of construction of the projects. In April 2021, the members of the partnerships contributed their respective portions of the tax credits in the amount of $49 million to the Oahu Solar and Kawailoa project companies, which was recorded to restricted cash on the Company's consolidated balance sheet with an offsetting adjustment to noncontrolling interests. In accordance with the projects' related agreements, the cash is held in a restricted account and utilized to offset invoiced amounts under the projects' PPAs. As of December 31, 2021, $20 million of the $49 million has been utilized to offset invoiced amounts under the projects' PPAs.

Accounts Receivable — Trade and Allowance for Credit Losses

Accounts receivable — trade are reported on the consolidated balance sheet at the invoiced amount adjusted for any write-offs and the allowance for credit losses. The allowance for credit losses is reviewed periodically based on amounts past due and significance. The allowance for credit losses was immaterial as of December 31, 2021 and 2020.

Inventory

Inventory consists principally of spare parts and fuel oil. Spare parts inventory is valued at weighted average cost, unless evidence indicates that the weighted average cost will not be recovered with a normal profit in the ordinary course of business. Fuel oil inventory is valued at the lower of weighted average cost or market. The Company removes fuel inventories as they are used in the production of steam, chilled water or electricity. Spare parts inventory is removed when used for repairs, maintenance or capital projects.

Property, Plant and Equipment

Property, plant and equipment are stated at cost; however impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. Significant additions or improvements extending asset lives are capitalized as incurred, while repairs and maintenance that do not improve or extend the life of the respective asset are charged to expense as incurred. Depreciation is computed using the straight-line method over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of operations. For further discussion of the Company's property, plant and equipment refer to Note 4, Property, Plant and Equipment.

Construction in-progress represents cumulative construction costs, including the costs incurred for the purchase of major equipment and engineering costs and capitalized interest. Once the project achieves commercial operation, the Company reclassifies the amounts recorded in construction in progress to facilities and equipment.

Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.

Asset Impairments

Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate their carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360, Property, Plant and Equipment. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured as the excess of an asset's carrying amount over its fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including appraisals, sales prices of similar assets and present value techniques. For further discussion of the Company's long-lived asset impairments, refer to Note 9, Asset Impairments.

Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value.

Debt Issuance Costs

Debt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs related to the long-term debt are presented as a direct deduction from the carrying amount of the related debt. Debt issuance costs related to the senior secured revolving credit facility line of credit are recorded as a non-current asset on the consolidated balance sheet and are amortized over the term of the credit facility.

Intangible Assets

Intangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including power purchase agreements, leasehold rights, customer relationships, customer contracts, emission allowances, RECs and development rights when specific rights and contracts are acquired. These intangible assets are amortized primarily on a straight-line basis. For further discussion of the Company's intangible assets, refer to Note 8, Intangible Assets.

Revenue Recognition

Revenue from Contracts with Customers

The Company applies the guidance in ASC 606, Revenue from Contracts with Customers, or Topic 606, when recognizing revenue associated with its contracts with customers. The Company's policies with respect to its various revenue streams are detailed below. In general, the Company applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer.

Thermal Revenues

Steam and chilled water revenue is recognized as the Company transfers the product to the customer, based on customer usage as determined by meter readings taken at month-end. Some locations read customer meters throughout the month, and recognize estimated revenue for the period between meter read date and month-end. For thermal contracts, the Company’s performance obligation to deliver steam and chilled water is satisfied over time and revenue is recognized based on the invoiced amount. The Thermal Business subsidiaries collect and remit state and local taxes associated with sales to their customers, as required by governmental authorities. These taxes are presented on a net basis in the consolidated statements of operations.

As contracts for steam and chilled water are long-term contracts, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the Company cannot accurately estimate the amount of its unsatisfied performance obligations as it will vary based on customer usage, which will depend on factors such as weather and customer activity.

On October 22, 2021, Clearway Energy Operating LLC entered into a binding agreement to sell the Thermal Business to KKR. For further details of the Thermal Disposition, refer to Note 3, Acquisitions and Dispositions.

Power Purchase Agreements, or PPAs

The majority of the Company’s revenues are obtained through PPAs or similar contractual agreements. Energy, capacity and, where applicable, renewable attributes, from the majority of the Company’s renewable energy assets and certain conventional energy plants is sold through long-term PPAs and tolling agreements to a single counterparty, which is often a utility or commercial customer. The majority of these PPAs are accounted for as operating leases as the Company retained its historical lease assessments and classification upon adoption of ASC 842, Leases. ASC 842 requires the minimum lease payments received to be amortized over the term of the lease and contingent rentals are recorded when the achievement of the contingency becomes probable. Judgment is required by management in determining the economic life of each generating facility, in evaluating whether certain lease provisions constitute minimum payments or represent contingent rent and other factors in determining whether a contract contains a lease and whether the lease is an operating lease or capital lease.

Certain of these leases have no minimum lease payments and all of the lease revenue derived from these leases is recorded as contingent rent on an actual basis when the electricity is delivered. The contingent lease revenue recognized in the years ended December 31, 2021, 2020 and 2019 was $741 million, $589 million and $537 million, respectively. See Note 17, Leases for additional information related to the Company's PPAs accounted for as leases.

Renewable Energy Credits, or RECs

As stated above, renewable energy credits, or RECs, are usually sold through long-term PPAs or through REC contracts with counterparties. Revenue from the sale of self-generated RECs is recognized when the related energy is generated and simultaneously delivered even in cases where there is a certification lag as it has been deemed to be perfunctory.

In a bundled contract to sell energy, capacity and/or self-generated RECs, all performance obligations are deemed to be delivered at the same time and hence, timing of recognition of revenue for all performance obligations is the same and occurs over time. In such cases, it is often unnecessary to allocate transaction price to multiple performance obligations.

Disaggregated Revenues

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2021, along with the reportable segment for each category:


	Year ended December 31, 2021
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	9	$	784	$	122	$	915
Capacity revenue (a)	455		2		53		510
Other revenues	—		60		32		92
Contract amortization	(23)		(118)		(3)		(144)
Mark-to-market for economic hedges	—		(87)		—		(87)
Total operating revenue	441		641		204		1,286
Less: Lease revenue	(464)		(716)		(2)		(1,182)
Less: Contract amortization	23		118		3		144
Total revenue from contracts with customers	$	—	$	43	$	205	$	248

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2020, along with the reportable segment for each category:


	Year ended December 31, 2020
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	10	$	609	$	101	$	720
Capacity revenue (a)	451		—		63		514
Other revenues	—		21		32		53
Contract amortization	(24)		(61)		(3)		(88)

Total operating revenue	437		569		193		1,199
Less: Lease revenue	(461)		(554)		(2)		(1,017)
Less: Contract amortization	24		61		3		88
Total revenue from contracts with customers	$	—	$	76	$	194	$	270

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2019, along with the reportable segment for each category:


	Year ended December 31, 2019
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	5	$	545	$	120	$	670
Capacity revenue (a)	348		—		54		402
Other revenues	—		10		30		40
Contract amortization	(7)		(61)		(3)		(71)
Mark-to-market for economic hedges	—		(9)		—		(9)
Total operating revenue	346		485		201		1,032
Less: Lease revenue	(353)		(509)		(2)		(864)
Less: Contract amortization	7		61		3		71
Total revenue from contracts with customers	$	—	$	37	$	202	$	239

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

Contract Amortization

Assets and liabilities recognized from power sales agreements assumed through acquisitions relating to the sale of electric capacity and energy in future periods arising from differences in contract and market prices are amortized to revenue over the term of each underlying contract based on actual generation and/or contracted volumes or on a straight-line basis, where applicable.

Contract Balances

The following table reflects the net amount of contract assets and liabilities included on the Company’s consolidated balance sheets as of December 31, 2021 and December 31, 2020:


(In millions)	December 31, 2021		December 31, 2020
Accounts receivable, net - Contracts with customers	$	44	$	57
Accounts receivable, net - Leases	100		86
Total accounts receivable, net	$	144	$	143

Derivative Financial Instruments

The Company accounts for derivative financial instruments under ASC 815, Derivatives and Hedging, or ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value unless they qualify for a NPNS exception. Changes in the fair value of non-hedge derivatives are immediately recognized in earnings. Changes in the fair value of derivatives accounted for as hedges, if elected for hedge accounting, are either:

•Recognized in earnings as an offset to the changes in the fair value of the related hedged assets, liabilities and firm commitments; or

•Deferred and recorded as a component of accumulated OCI until the hedged transactions occur and are recognized in earnings.

The Company's primary derivative instruments are interest rate instruments used to mitigate variability in earnings due to fluctuations in interest rates, power purchase or sale contracts used to mitigate variability in earnings due to fluctuations in market prices and commodity purchase contracts used to control customer reimbursable fuel cost. On an ongoing basis, the Company qualitatively assesses the effectiveness of its derivatives that are designated as hedges for accounting purposes in order to determine that each derivative continues to be highly effective in offsetting changes in cash flows of hedged items. If necessary, the Company will perform an analysis to measure the statistical correlation between the derivative and the associated hedged item to determine the effectiveness of such a contract designated as a hedge. The Company will discontinue hedge accounting if it is determined that the hedge is no longer effective. In this case, the gain or loss previously deferred in accumulated OCI would be frozen until the underlying hedged item is delivered unless the transaction being hedged is no longer probable of occurring in which case the amount in accumulated OCI would be immediately reclassified into earnings. If the derivative instrument is terminated, the effective portion of this derivative deferred in accumulated OCI will be frozen until the underlying hedged item is delivered.

Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative financial instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.

Concentrations of Credit Risk

Financial instruments which potentially subject the Company to concentrations of credit risk consist primarily of accounts receivable — trade and derivative instruments, which are concentrated within entities engaged in the energy and financial industries. These industry concentrations may impact the overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. In addition, many of the Company's projects have only one customer. See Item 1A, Risk Factors, Risks related to the Company's Business, for a discussion on the Company’s dependence on major customers. See Note 6, Fair Value of Financial Instruments, for a further discussion of derivative concentrations and Note 13, Segment Reporting, for concentration of counterparties.

Fair Value of Financial Instruments

The carrying amount of cash and cash equivalents, restricted cash, accounts receivable — trade, accounts payable — trade, account payable — affiliate and accrued expenses and other current liabilities approximate fair value because of the short-term maturity of these instruments. See Note 6, Fair Value of Financial Instruments, for a further discussion of fair value of financial instruments.

Asset Retirement Obligations

Asset retirement obligations, or AROs, are accounted for in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made.

Upon initial recognition of a liability for an ARO, other than when an ARO is assumed in an acquisition of the related long-lived asset, the asset retirement cost is capitalized by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. The Company's AROs are primarily related to the future dismantlement of equipment on leased property and environmental obligations related to site closures and fuel storage facilities. The Company records AROs as part of other non-current liabilities on its consolidated balance sheet.

The following table represents the balance of ARO obligations as of December 31, 2021 and 2020, along with the additions and accretion related to the Company's ARO obligations for the year ended December 31, 2021:


(In millions)
Balance as of December 31, 2020	$	117
Thermal Business AROs reclassified to held for sale	(1)
Revisions in estimates for current obligations	2
Additions	19

Accretion — expense	9
Balance as of December 31, 2021	$	146

Guarantees

The Company enters into various contracts that include indemnification and guarantee provisions as a routine part of its business activities. Examples of these contracts include operation and maintenance agreements, service agreements, commercial sales arrangements and other types of contractual agreements with vendors and other third parties as well as affiliates. These contracts generally indemnify the counterparty for tax, environmental liability, litigation and other matters as well as breaches of representations, warranties and covenants set forth in these agreements. Because many of the guarantees and indemnities the Company issues to third parties and affiliates do not limit the amount or duration of its obligations to perform under them, there exists a risk that the Company may have obligations in excess of the amounts agreed upon in the contracts mentioned above. For those guarantees and indemnities that do not limit the liability exposure, the Company may not be able to estimate what the liability would be, until a claim is made for payment or performance, due to the contingent nature of these contracts.

Investments Accounted for by the Equity Method

The Company has investments in various energy projects accounted for by the equity method, several of which are VIEs, where the Company is not a primary beneficiary, as described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The equity method of accounting is applied to these investments in affiliates because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of the investments is reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.

Sale-Leaseback Arrangements

The Company is party to sale-leaseback arrangements that provide for the sale of certain assets to a third-party and simultaneous leaseback to the Company. In accordance with ASC 840-40, Sale-Leaseback Transactions, if the seller-lessee retains, through the leaseback, substantially all of the benefits and risks incident to the ownership of the property sold, the sale-leaseback transaction is accounted for as a financing arrangement. An example of this type of continuing involvement would include an option to repurchase the assets or the buyer-lessor having the option to sell the assets back to the Company. This provision is included in most of the Company’s sale-leaseback arrangements. As such, the Company accounts for these arrangements as financings.

Under the financing method, the Company does not recognize as income any of the sale proceeds received from the lessor that contractually constitutes payment to acquire the assets subject to these arrangements. Instead, the sale proceeds received are accounted for as financing obligations and leaseback payments made by the Company are allocated between interest expense and a reduction to the financing obligation. Interest on the financing obligation is calculated using the Company’s incremental borrowing rate at the inception of the arrangement on the outstanding financing obligation. Judgment is required to determine the appropriate borrowing rate for the arrangement and in determining any gain or loss on the transaction that would be recorded either at the end of or over the lease term.

Stock-Based Compensation

The Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's relative performance stock units, or RPSUs, are estimated on the date of grant using the Monte Carlo valuation model. The Company uses the Class A and Class C common stock price on the date of grant as the fair value of the Company's restricted stock units, or RSUs. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award. The Company incurred total stock compensation expense of $4 million, $3 million and $4 million for the years ended December 31, 2021, 2020 and 2019, respectively, which was primarily recorded in general and administrative expense on the Company's consolidated statements of operations.

Income Taxes

The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences.

The Company has two categories of income tax expense or benefit — current and deferred, as follows:

•Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and

•Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive loss.

The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are currently in effect. The Company believes it is more likely than not that the results of future operations will generate sufficient taxable income which includes the future reversal of existing taxable temporary differences to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion to utilize projections of future profit before tax in its estimate of future taxable income, the Company considered the profit before tax generated in recent years. A valuation allowance is recorded to reduce the net deferred tax assets to an amount that is more-likely-than-not to be realized.

The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position that has surpassed the more-likely-than-not threshold is the largest amount of benefit that is more than 50% likely to be realized upon settlement.

In accordance with ASC 740 and as discussed further in Note 14, Income Taxes, changes to existing net deferred tax assets, valuation allowances, or changes to uncertain tax benefits, are recorded to income tax expense.

Business and Asset Acquisitions

The Company accounts for its acquisitions in accordance with ASC 805, Business Combinations, or ASC 805. For third-party acquisitions, ASC 805 requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed and any noncontrolling interest in the acquiree at fair value at the acquisition date. It also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination and determines what information to disclose to enable users of an entity's financial statements to evaluate the nature and financial effects of the business combination. In addition, for business combinations, transaction costs are expensed as incurred. For asset acquisitions, identifiable assets acquired and liabilities assumed are recorded at acquisition date fair value. No goodwill is recognized and excess purchase price or negative goodwill are allocated to the acquired assets on a relative fair value basis. For acquisitions that relate to entities under common control, ASC 805 requires retrospective combination of the entities for all annual periods presented as if the combination has been in effect from the beginning of the earliest financial statement period presented or from the date the entities were under common control (if later than the beginning of the earliest financial statement period). The difference between the cash paid and historical value of the entities' equity is recorded as a distribution/contribution from/to CEG with the offset to noncontrolling interest.

Use of Estimates

The preparation of consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions. These estimates and assumptions impact the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the date of the consolidated financial statements. They also impact the reported amounts of net earnings during the reporting periods. Actual results could be different from these estimates.

In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, AROs, acquisition accounting and legal costs incurred in connection with recorded loss contingencies, among others. In addition, estimates are used to test long-lived assets for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.

Tax Equity Arrangements

Certain portions of the Company's noncontrolling interests in subsidiaries represent third-party interests in the net assets under certain tax equity arrangements, which are consolidated by the Company, that have been entered into to finance the cost of solar and wind facilities eligible for certain tax credits. Additionally, certain portions of the Company's investments in unconsolidated affiliates reflect the Company's interests in tax equity arrangements, that are not consolidated by the Company, that have been entered into to finance the cost of solar energy systems, under operating leases or PPAs, that are eligible for certain tax credits. The Company has determined that the provisions in the contractual agreements of these structures represent substantive profit sharing arrangements. Further, the Company has determined that the appropriate methodology for calculating the noncontrolling interest and investment in unconsolidated affiliates that reflects the substantive profit sharing arrangements is a balance sheet approach utilizing the hypothetical liquidation at book value, or HLBV, method. Under the HLBV method, the amounts reported as noncontrolling interests and investment in unconsolidated affiliates represent the amounts the investors to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts determined in accordance with GAAP. The investors' interests in the results of operations of the funding structures are determined as the difference in noncontrolling interests and investment in unconsolidated affiliates at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds' investors. The calculations utilized to apply the HLBV method include estimated calculations of taxable income or losses for each reporting period. In addition, in certain circumstances, the Company and its partners in the tax equity arrangements agree that certain tax benefits are to be utilized outside of the tax equity arrangements, which may result in differences in the amount an investor would hypothetically receive at the initial balance sheet date calculated strictly in accordance with related contractual agreements. These differences are recognized in the consolidated statement of operations using a systematic and rational method over the period during which the investor is expected to achieve its target return.

Reclassification

Certain prior year amounts have been reclassified for comparative purposes.

Recently Adopted Accounting Standards

In March 2020, the FASB issued ASU No. 2020-4, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The amendments provide for optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. These amendments apply only to contracts that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform, which affects certain of the Company's debt and interest rate swap agreements. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. As of December 31, 2021, the Company has applied the amendments to all its eligible contract modifications, where applicable, during the reference rate reform period. Additionally, the Company has not elected any optional expedients provided in the standard.

Effective January 1, 2021, the Company adopted ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740, Income Taxes. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. Adoption of the new standard did not have a material impact on the Company's consolidated financial statements.

Acquisitions and Dispositions

12 Months Ended

Dec. 31, 2021

Business Combination and Asset Acquisition [Abstract]

Acquisitions and Dispositions

Acquisitions

Black Rock Drop Down — On December 29, 2021, the Company, through its indirect subsidiary Lighthouse Renewable Holding Sub LLC, acquired the Class B membership interests in Black Rock Wind Holding LLC from Clearway Renew LLC, a subsidiary of CEG, for $60 million in cash consideration, $37 million of which was paid on December 29, 2021 with the remaining $23 million paid in February 2022 after all remaining turbines were operational. Lighthouse Renewable Holding Sub LLC is a wholly-owned subsidiary of Lighthouse Renewable Holdco LLC, which is a partnership between the Company and a third-party investor. The third-party investor also contributed cash consideration utilized to acquire their portion of the Class B membership interests. The Class A membership interests in Black Rock Wind Holding LLC were acquired by another third-party investor in 2020. Black Rock Wind Holding LLC, through its wholly-owned subsidiary, Black Rock Class B Holdco LLC, is the primary beneficiary and consolidates its interests in a tax equity fund, Black Rock TE Holdco LLC, that holds the Black Rock wind project, a 115 MW utility scale wind project located in Mineral County and Grant County, West Virginia, which achieved commercial operations in December 2021, as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. As of December 31, 2021, 70 MW of the 115 MW rated capacity were operational, representing fourteen of the twenty-three wind turbines, and the remaining 45 MW rated capacity became operational in January 2022. A majority of the project’s output is backed by contracts with investment-grade counterparties with a 15-year weighted average contract life. The Black Rock operations are reflected in the Company's Renewables segment and the acquisition was funded with existing sources of liquidity. The acquisition was determined to be an asset acquisition and not a business combination, therefore the Company consolidated the financial information for Black Rock on a prospective basis. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid of $60 million and the historical cost of the Company's acquired interests of $19 million was recorded as an adjustment to CEG's noncontrolling interest balance. In addition, the Company reflected additional contributions paid by CEG and the portion of the Company’s purchase price utilized to repay long-term debt, totaling $133 million, as contributions from CEG in the statement of stockholders’ equity, and as an impact of the Black Rock Drop Down in noncontrolling interest.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 29, 2021:


(In millions)	Black Rock
Current assets (a)	$	36
Property, plant and equipment	178
Right-of-use-assets	7
Other non-current assets	2
Total assets acquired	223

Long-term debt (b)	186
Long-term lease liabilities	7
Other current and non-current liabilities	11

Total liabilities assumed (c)	204

Net assets acquired	$	19

(a) Includes $35 million reserved for project completion costs included in restricted cash on the Company's balance sheet at acquisition date, which is included within the $133 million contributed by CEG described above.

(b) Repaid at acquisition date utilizing $56 million contributed by the tax equity investor, $36 million from the cash equity investor and $61 million contributed by CEG, all recorded as contributions in noncontrolling interest, as well as $37 million of the Company's acquisition price. Of the $190 million contributed, $186 million was utilized to pay down the acquired debt and $4 million was utilized to pay associated fees. The $61 million contributed by CEG and the Company’s initial acquisition price of $37 million are also included within the $133 million contributed by CEG described above.

(c) Total liabilities assumed excludes amounts due to CEG as of December 31, 2021 for the remaining turbines that became operational in January 2022. The liabilities totaled $83 million, of which $59 million was received from the tax equity and cash equity investors and was held in escrow accounts as of December 31, 2021.

Mesquite Sky Drop Down — On December 17, 2021, the Company, through its indirect subsidiary Lighthouse Renewable Holdco 2 LLC, acquired the Class B membership interests of Mesquite Sky Holding LLC from Clearway Renew LLC, a subsidiary of CEG, for $61 million in cash consideration. Lighthouse Renewable Holdco 2 LLC is a partnership between the Company and a third-party investor. The third-party investor also contributed cash consideration utilized to acquire their portion of the Class B membership interests. The Class A membership interests of Mesquite Sky Holding LLC were acquired by another third-party investor in 2020. Mesquite Sky Holding LLC, through its wholly-owned subsidiary, Mesquite Sky Class B Holdco LLC, is the primary beneficiary and consolidates its interests in a tax equity fund, Mesquite Sky TE Holdco LLC, that holds the Mesquite Sky wind project, a 340 MW utility scale wind project located in Callahan County, Texas, which achieved commercial operations in December 2021, as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. A majority of the project’s output is backed by contracts with investment-grade counterparties with a 12-year weighted average contract life. The Mesquite Sky operations are reflected in the Company's Renewables segment and the acquisition was funded with existing sources of liquidity. The acquisition was determined to be an asset acquisition and not a business combination, therefore the Company consolidated the financial information for Mesquite Sky on a prospective basis. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The sum of the cash paid of $61 million and the historical cost of the Company's net liabilities assumed of $7 million was recorded as an adjustment to CEG's noncontrolling interest balance. The difference between cash paid, interests acquired, and the balance in equity is capital reserved for project completion. In addition, the Company reflected additional contributions paid by CEG and the portion of the Company’s purchase price utilized to repay long-term debt, totaling $52 million, as contributions from CEG in the statement of stockholders’ equity, and as an impact of the Mesquite Sky drop down in noncontrolling interest.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 17, 2021:


(In millions)	Mesquite Sky
Current assets (a)	$	46
Property, plant and equipment	377
Right-of use assets	45
Other non-current assets	7


Total assets acquired	475

Long-term debt (b)	355
Long-term lease liabilities	45
Derivative liabilities	43
Other current and non-current liabilities	39
Total liabilities assumed (c)	482
Net liabilities assumed	$	(7)

(a) Includes $44 million reserved for project completion costs included in restricted cash on the Company's balance sheet at acquisition date, which is included within the $52 million contributed by CEG described above.

(b) Repaid at acquisition date utilizing $241 million contributed by the tax equity investor and $107 million contributed by the cash equity investor, both recorded as contributions in noncontrolling interest, as well as the Company's $61 million acquisition price. Of the $409 million contributed, $355 million was utilized to pay down the acquired debt and $1 million was utilized to pay associated fees. The remaining $53 million was distributed to CEG for the acquisition. The net of the Company’s $61 million acquisition price and the distribution to CEG of $53 million are included within the $52 million contributed by CEG described above.

(c) Total liabilities assumed excludes amounts due to CEG as of December 31, 2021 of $6 million, of which $5 million was received from the tax equity and cash equity investors and was held in escrow accounts as of December 31, 2021.

Utah Solar Portfolio Acquisition — On December 1, 2021, the Company acquired the remaining 50% equity interest in the Utah Solar Portfolio from Dominion Solar Projects III, Inc., for approximately $335 million before working capital and purchase price adjustments in the net amount of $5 million, representing total net consideration of $330 million. The Utah Solar Portfolio consists of seven utility-scale solar farms located in Utah, representing 530 MW of capacity. The assets within the portfolio sell power subject to 20-year PPAs with PacifiCorp that have approximately 15 years remaining under the agreements. Following the close of the transaction, the Company owns 100% of the membership interests in the Utah Solar Portfolio and consolidates the Utah Solar Portfolio. The Utah Solar Portfolio operations are included in the Company's Renewables segment. The acquisition was determined to be an asset acquisition and the cash consideration of $330 million, net of restricted cash acquired of $8 million, represented a net cash outflow of $322 million, which was allocated to the fair value of the assets acquired and liabilities assumed on the acquisition date. The acquisition was funded with the borrowings under the Bridge Loan Agreement, as described in Note 10, Long-term Debt.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 1, 2021:


(In millions)	Utah Solar Portfolio
Current assets	$	20
Property, plant and equipment	258
Intangible assets for power purchase agreement	302
Other intangible assets	4
Right-of use assets	163
Total assets acquired	747

Long-term lease liabilities	163
Other current and non-current liabilities	24


Total liabilities assumed	187
Equity method investment removed	(230)
Net assets acquired	$	330

Mt. Storm Wind Acquisition — On April 23, 2021, the Company acquired 100% of the equity interests in NedPower Mount Storm LLC, or Mt. Storm, from Castleton Commodities International for approximately $96 million before working capital and purchase price adjustments in the net amount of $4 million, representing a total net consideration of $100 million. Mt. Storm is a 264 MW wind project located in Grant County, West Virginia. Mt. Storm has a 10-year energy hedge with an investment-grade counterparty. The acquisition was determined to be an asset acquisition and the purchase price was allocated to the fair value of the assets acquired and liabilities assumed on the acquisition date as follows:


(In millions)	Mt. Storm

Current assets	$	3
Property, plant and equipment	108
Other non-current assets	2


Total assets acquired	113

Derivative instruments	9
Other current and non-current liabilities	4

Total liabilities assumed	13

Net assets acquired	$	100

Agua Caliente Acquisition — On February 3, 2021, the Company acquired an additional 35% equity interest in the Agua Caliente solar project from NRG Energy, Inc. for $202 million. Agua Caliente is a 290 MW solar project located in Dateland, Arizona in which Clearway previously owned a 16% equity interest. The project has a 25-year PPA with PG&E, with approximately 17 years remaining under the agreement. Following the close of the transaction, the Company owns a 51% equity interest in Agua Caliente. The Agua Caliente operations are included in the Company's Renewables segment. The acquisition was determined to be an asset acquisition and the cash consideration of $202 million, net of restricted cash acquired of $91 million, represented a net cash outflow of $111 million, which was allocated to the fair value of the assets acquired and liabilities assumed on the acquisition date. A third-party investor holds the remaining 49% equity interest in Agua Caliente, which is reflected in noncontrolling interest at fair value at the acquisition date.

The following is a summary of assets and liabilities obtained in connection with the acquisition as of February 3, 2021:


(In millions)	Agua Caliente
Restricted cash	$	91
Property, plant and equipment	154
Intangible asset for power purchase agreement	1,022

Other current assets	9
Total assets acquired	1,276

Long-term debt	716
Other current and non-current liabilities	5

Total liabilities assumed	721
Noncontrolling interest	273
Equity method investment removed	(80)
Net assets acquired less noncontrolling interest	$	202

Rattlesnake Drop Down — On January 12, 2021, the Company acquired CEG's equity interest and a third-party investor's minority interest in CWSP Rattlesnake Holding, LLC for $132 million in cash consideration. CWSP Rattlesnake Holding LLC indirectly consolidates the Rattlesnake wind project, a 160 MW wind facility with 144 MW of deliverable capacity in Adams County, Washington, as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The project has a 20-year PPA with Avista Corporation, which began when the facility reached commercial operations in December 2020. The Rattlesnake operations are included in the Company's Renewables segment. The acquisition was determined to be an asset acquisition and not a business combination, therefore, the Company consolidated the financial information for Rattlesnake on a prospective basis. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid of $132 million and the historical cost of the Company's acquired interests of $14 million was recorded as an adjustment to CEG's noncontrolling interest balance.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of January 12, 2021:


(In millions)	Rattlesnake
Current assets	$	8
Property, plant and equipment	200
Right-of-use assets	12
Total assets acquired	220

Long-term debt (a)	176
Long-term lease liabilities	12
Other current and non-current liabilities	18
Total liabilities assumed	206

Net assets acquired	$	14

(a) Repaid at acquisition date utilizing $107 million contributed by tax equity investor and $103 million contributed by CEG, both recorded as contributions in noncontrolling interest. Of the $210 million contributed, $176 million was utilized to pay down the acquired debt, $29 million was utilized to fund project reserve accounts and $5 million was utilized to pay associated fees.

Langford Drop Down — On November 20, 2020, the Company acquired 100% of the Class B membership interest in Langford Holding LLC from CEG for $55 million as well as a minority interest from a third-party investor for $9 million. Langford Holding LLC indirectly consolidates its interest in the Langford wind project as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The Langford project is a 160 MW wind project located in West Texas which achieved repowering commercial operations in November 2020. The Langford operations are included in the Company's Renewables segment and the acquisition was funded with cash on hand. The acquisition was determined to be an asset acquisition and not a business combination, therefore the Company consolidated the financial information for Langford on a prospective basis. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid of $64 million and the historical value of the Company's acquired interests of $21 million was recorded as an adjustment to noncontrolling interest.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of November 20, 2020:


(In millions)	Langford
Current assets	$	4
Property, plant and equipment	138
Other non-current assets	15
Total assets acquired	157

Other current and non-current liabilities	17
Total liabilities assumed	17
Noncontrolling interests	119
Net assets acquired less noncontrolling interests	$	21

Rosamond Central Drop Down — On December 21, 2020, Rosamond Solar Investment LLC, a subsidiary of the Company, acquired 100% of the Class A membership interests of Rosie TargetCo LLC from Renew Development HoldCo LLC, a subsidiary of CEG, for $23 million in cash consideration and an additional $1 million adjustment concurrent with the tax equity investor's final funding which was paid in January 2021. Rosie Target Co LLC is the primary beneficiary and consolidates its interest in a tax equity fund that owns the 192 MW Rosamond Central solar project, located in Kern County, California as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The Rosamond Central operations are included in the Company's Renewables segment. The acquisition was determined to be an asset acquisition and not a business combination, and therefore, the Company consolidated the financial information for Rosamond Central on a prospective basis. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid of $24 million and the historical value of the Company's acquired interests of $28 million was recorded as an adjustment to noncontrolling interest.

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 21, 2020:


(In millions)	Rosamond Central
Current assets	$	49
Property, plant and equipment	246

Other non-current assets	1
Total assets acquired	296

Long-term debt	205
Other current and non-current liabilities	11
Total liabilities assumed	216
Noncontrolling interests	52
Net assets acquired less noncontrolling interests	$	28

Mesquite Star Drop Down — On September 1, 2020, the Company, through its indirect subsidiary Lighthouse Renewable Class A LLC, acquired the Class A membership interests in Lighthouse Renewable Holdco LLC (formerly Mesquite Star Pledgor LLC) from Clearway Renew LLC, a subsidiary of CEG, for $74 million in cash consideration inclusive of a purchase price adjustment received in the fourth quarter of 2020 concurrent with the partnership amendment referenced below. Lighthouse Renewable Holdco LLC indirectly owns 100% of the Class B membership interests in Mesquite Star Tax Equity Holdco LLC, a tax equity partnership that it consolidates as the primary beneficiary, and owns the Mesquite Star wind project, a 419 MW utility scale wind project located in Fisher County, Texas. A majority of the project's output is backed by contracts with investment-grade counterparties with a 12 year weighted average contract life. The Mesquite Star operations are reflected in the Company's Renewables segment and the acquisition was funded with cash on hand. The Company initially recorded its interest in Lighthouse Renewable Class A LLC as an equity method investment. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the $74 million cash paid and the historical value of the Company's acquired interests of $83 million was recorded as an adjustment to noncontrolling interest.

On December 21, 2020, Clearway Renew LLC sold the Class B membership interest in Lighthouse Renewable Holdco LLC to a third-party investor as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The investor and the Company amended the terms of the related partnership and as a result, the Company now consolidates its interest in the Mesquite Star wind project, through its consolidation of Lighthouse Renewable Holdco LLC. The membership interests acquired by the Company relate to interests under common control by GIP and were recorded at historical cost. The difference between the carrying value of the Company's equity method investment of $58 million and the historical value of the net assets consolidated for Mesquite Star of $63 million was recorded as an adjustment to noncontrolling interest.

The following table shows the balances that were consolidated effective on December 21, 2020:


(In millions)	Mesquite Star
Current assets	$	22
Property, plant and equipment	443
Other non-current assets	31
Total assets acquired	496

Other current and non-current liabilities	87
Total liabilities assumed	87
Noncontrolling interests and redeemable noncontrolling interests	346
Net assets acquired less noncontrolling interests	$	63

DG Residual Interest and SREC Contract Drop Down — On November 2, 2020, the Company acquired the Class B membership interests in DGPV Holdco 1, DGPV Holdco 2 and DGPV Holdco 3, or DGPV Holdco Entities, from Renew DG Holdings LLC, a subsidiary of CEG, for approximately $20 million in cash consideration and an SREC contract for approximately $24 million in cash consideration. The Company previously held the Class A membership interests in the DGPV Holdco Entities and accounted for its interests in DGPV Holdco 1 and DGPV Holdco 2 as equity method investments, while DGPV Holdco 3 was consolidated by the Company effective May 29, 2020 as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. Subsequent to the acquisition of the remaining interests in the DGPV Holdco Entities, the Company transferred its interests to DG-CS Master Borrower LLC, and issued debt that was utilized to repay existing project-level debt outstanding and unwind interest rate swaps for certain of the tax equity arrangements related to the underlying project funds, as further described in Note 10, Long-term Debt. The acquired SREC contract is a contract to receive incremental cash flows related to renewable energy credits from certain underlying solar projects. The assets and liabilities transferred to the Company relate to interests under common control by GIP and were recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid for the residual interest of the DGPV Holdco Entities and the historical value of the net assets consolidated less the carrying value of the equity method investments was recorded as an adjustment to noncontrolling interest.

The following table shows the balances that were consolidated:


	November 2, 2020		May 29, 2020
(In millions)	DGPV Holdco 1 and 2 (a)		DGPV Holdco 3 (b)
Current assets	$	29	$	32
Property, plant and equipment, net	324		331
Intangible assets, net	19		1
Other non-current assets	52		37
Total assets acquired	424		401

Long-term debt	160		206
Other current and non-current liabilities	54		84
Total liabilities assumed	214		290
Noncontrolling interests and redeemable noncontrolling interests	5		6
Net assets acquired less noncontrolling interests	$	205	$	105

(a) Includes DGPV 1, LLC, DGPV 2, LLC, CA Fund, LLC, DGPV 4 Borrower LLC and Puma Class B LLC

(b) Includes Renew Solar CS4 Fund LLC and Chestnut Fund LLC

The fair value of property, plant and equipment determined at GIP's acquisition date was determined primarily based on an income method using discounted cash flows and validated using a cost approach based on the replacement cost of the assets less economic depreciation. This methodology was utilized as the forecasted cash flows incorporate specific attributes of each asset including age, useful life, equipment condition and technology. The fair value of intangible assets was determined utilizing a variation of the income approach determined by discounting incremental cash flows associated with the contracts to present value. Primary assumptions utilized included estimates of generation, contractual prices, operating expenses and the weighted average cost of capital reflective of a market participant. These assumptions are considered to be a Level 3 measurement as defined in ASC 820, as they utilize inputs that are not observable in the market.

Dispositions

Thermal Disposition — On October 22, 2021, Clearway Energy Operating LLC entered into a binding agreement to sell the Thermal Business to KKR for total consideration of $1.9 billion, subject to customary closing adjustments. The closing of the transaction is subject to various customary closing conditions, approvals and consents and is expected to close in the first half of 2022. Effective with the approval by the Board of Directors and signing of the agreement to sell the Thermal Business, the Company concluded that all entities that are included within the Thermal Business will be treated as held for sale on a prospective basis, resulting in the assets and liabilities being reported as separate held for sale line items on the Company’s consolidated balance sheet as of December 31, 2021. Property, plant and equipment represents 78% and intangible assets represents 9% of assets classified as held for sale while long-term debt represents 85% of liabilities classified as held for sale. The Company expects to recognize a gain upon the completion of the Thermal Disposition. The Company's Thermal segment is comprised solely of the Thermal Business's results of operations.

Sale of RPV Holdco 1 LLC — On May 14, 2020, the Company sold its interests in RPV Holdco 1 LLC, or RPV Holdco, to Spruce Power for net proceeds of approximately $75 million. The Company previously accounted for its interest in RPV Holdco as an equity method investment. The sale of the investment resulted in a gain of approximately $49 million.

Sale of Energy Center Dover LLC and Energy Center Smyrna LLC Assets — On March 3, 2020, the Company, through Clearway Thermal LLC, sold 100% of its interests in Energy Center Dover LLC and Energy Center Smyrna LLC to DB Energy Assets, LLC for cash proceeds of approximately $15 million.

Property, Plant and Equipment

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Property, plant and equipment

Property, Plant and Equipment

The Company's major classes of property, plant, and equipment were as follows:


	December 31, 2021		December 31, 2020		Depreciable Lives
	(In millions)
Facilities and equipment	$	9,747	$	9,254	2 - 40 Years
Land and improvements	320		224
Construction in progress (a)	84		62
Total property, plant and equipment	10,151		9,540
Accumulated depreciation	(2,501)		(2,323)
Net property, plant and equipment	$	7,650	$	7,217

(a) As of December 31, 2021 and 2020, construction in progress includes $17 million and $14 million, respectively, of capital expenditures that relate to prepaid long-term service agreements in the Conventional segment.

Depreciation expense related to property, plant and equipment during the years ended December 31, 2021, 2020 and 2019 was $499 million, $420 million and $395 million, respectively. The Company accelerated depreciation of the Pinnacle wind project in connection with the repowering project, which resulted in additional depreciation expense in the amount of $34 million in 2021 and $9 million in 2020.

The Company recorded long-lived asset impairments during each of the years ended December 31, 2021 and December 31, 2020, as further described in Note 9, Asset Impairments.

Investments Accounted for by the Equity Method and Variable Interest Entities

12 Months Ended

Dec. 31, 2021

Equity Method Investments and Joint Ventures [Abstract]

Investments accounted for by the equity method and variable interest entities

Investments Accounted for by the Equity Method and Variable Interest Entities

Equity Method Investments

The Company's maximum exposure to loss as of December 31, 2021 is limited to its equity investment in the unconsolidated entities, as further summarized in the table below:


Name	Economic Interest	Investment Balance
		(In millions)
Avenal	50%	$	4
Desert Sunlight	25%	239
Elkhorn Ridge	66.7%	29
GenConn (a)	50%	86
San Juan Mesa	75%	23
		$	381

(a) GenConn is a variable interest entity.

As of December 31, 2021 and 2020, the Company had $14 million and $10 million, respectively, of undistributed earnings from its equity method investments.

The Company acquired its interest in Desert Sunlight on June 30, 2015, for $285 million, which resulted in a difference between the purchase price and the basis of the acquired assets and liabilities of $171 million. The difference is attributable to the fair value of the property, plant and equipment and power purchase agreements. The Company is amortizing the related basis differences to equity in earnings of unconsolidated subsidiaries over the related useful life of the underlying assets acquired.

The Company's pro-rata share of non-recourse debt held by unconsolidated affiliates was $345 million as of December 31, 2021.

The following tables present summarized financial information for the Company's equity method investments:


	Year Ended December 31,
	2021		2020		2019
Income Statement Data:	(In millions)
GenConn
Operating revenues	$	55	$	60	$	60
Operating income	22		26		27
Net income	13		17		17
Desert Sunlight
Operating revenues	205		209		205
Operating income	146		142		123
Net income	112		88		58












Other (a) (b)
Operating revenues	49		299		318
Operating income	16		138		110
Net income	13		60		50
			As of December 31,
			2021		2020
Balance Sheet Data:			(In millions)
GenConn
Current assets			$	38	$	40
Non-current assets			328		344
Current liabilities			15		17
Non-current liabilities			178		185
Desert Sunlight
Current assets			131		132
Non-current assets			1,228		1,244
Current liabilities			64		71
Non-current liabilities			904		921

















Other (a) (b)
Current assets			26		177
Non-current assets			172		2,201
Current liabilities			24		114
Non-current liabilities			98		700

(a) Includes Avenal, Elkhorn Ridge, San Juan Mesa, DGPV Holdco 1, DGPV Holdco 2 and DGPV Holdco 3. DGPV Holdco 1, DGPV Holdco 2 and DGPV Holdco 3 were consolidated by the Company during 2020 and are therefore excluded from the summarized balance sheet data as of December 31, 2020.

(b) On February 3, 2021, the Company acquired an additional 35% equity interest in Agua Caliente and removed its equity investment in Agua Caliente and, on December 1, 2021, the Company acquired the remaining 50% equity investment in the Utah Solar Portfolio and removed its equity investment in the Utah Solar Portfolio. As a result, both Agua Caliente and the Utah Solar Portfolio are excluded from the summarized balance sheet data as of December 31, 2021 and from the summarized income statement data for the year ended December 31, 2021.

Variable Interest Entities, or VIEs

Entities that are Consolidated

The Company has a controlling financial interest in certain entities which have been identified as VIEs under ASC 810, Consolidations, or ASC 810. These arrangements are primarily related to tax equity arrangements entered into with third parties in order to monetize certain tax credits associated with wind and solar facilities and are further described below.

Summarized financial information for the Company's consolidated VIEs consisted of the following as of December 31, 2021:


(In millions)	Alta TE Holdco		Buckthorn Renewables, LLC		DGPV Funds(a)		Kawailoa Partnership		Langford TE Partnership LLC		Lighthouse Renewable Holdco LLC(b)		Lighthouse Renewable Holdco 2 LLC(c)
Other current and non-current assets	$	53	$	4	$	104	$	40	$	17	$	84	$	83
Property, plant and equipment	331		202		592		135		132		605		377
Intangible assets	212		—		16		—		2		—		—
Total assets	596		206		712		175		151		689		460
Current and non-current liabilities	40		10		76		103		18		150		118
Total liabilities	40		10		76		103		18		150		118
Noncontrolling interest	13		44		6		48		66		416		239
Net assets less noncontrolling interests	$	543	$	152	$	630	$	24	$	67	$	123	$	103

(a) DGPV Funds is comprised of DGPV Fund 2 LLC, Clearway & EFS Distributed Solar LLC, DGPV Fund 4 LLC, Golden Puma Fund LLC, Renew Solar CS4 Fund LLC and Chestnut Fund LLC.

(b) Lighthouse Renewable Holdco LLC consolidates Mesquite Star Tax Equity Holdco LLC and Black Rock TE Holdco LLC, which are also consolidated VIEs.


(In millions)	Oahu Solar Partnership		Pinnacle Repowering Partnership LLC		Rattlesnake TE Holdco LLC		Rosie Target Co LLC		Wildorado TE Holdco		Other(a)
Other current and non-current assets	$	47	$	12	$	30	$	26	$	21	$	16
Property, plant and equipment	172		108		194		251		225		168
Intangible assets	—		18		—		—		—		1
Total assets	219		138		224		277		246		185
Current and non-current liabilities	114		6		23		100		18		44
Total liabilities	114		6		23		100		18		44
Noncontrolling interest	31		78		98		140		121		84
Net assets less noncontrolling interests	$	74	$	54	$	103	$	37	$	107	$	57

(a) Other is comprised of Crosswind Transmission, LLC, Hardin Hilltop Wind LLC, Elbow Creek TE Holdco and Spring Canyon TE Holdco projects.

Pinnacle Repowering Partnership LLC — On February 26, 2021, the Company entered into an amended agreement with CWSP Pinnacle Holding LLC, an indirect subsidiary of CEG, with respect to Pinnacle Repowering Partnership LLC in order to facilitate the repowering of the Pinnacle wind project, a 54 MW wind facility located in Mineral County, West Virginia. On March 10, 2021, the Company contributed its interest in the Pinnacle wind project to Pinnacle Repowering Partnership LLC concurrent with entering into a financing agreement as further described in Note 7, Long-term Debt. The Company owns 100% of the Class A membership interests in Pinnacle Repowering Partnership LLC, which is a VIE, and the Company consolidates its interest as the primary beneficiary and managing member. CWSP Pinnacle Holding LLC owns 100% of the Class B membership interests in Pinnacle Repowering Partnership LLC and is entitled to allocations of 15% of the cash distributions from the partnership. On March 10, 2021, CWSP Pinnacle Holding LLC contributed $27 million in equipment to the partnership, which was a transfer of assets under common control and recorded at historical cost in property, plant and equipment, with a corresponding non-cash contribution in Pinnacle Repowering Partnership LLC's noncontrolling interests. Additionally, on March 10, 2021, the Pinnacle wind project acquired equipment from CEG for $21 million in cash consideration.

On December 15, 2021, in connection with the completion of the repowering of the project, a third-party tax equity investor acquired the Class A membership interests in Pinnacle Tax Equity Holdco LLC, which is a tax equity fund, and the holder of the Pinnacle wind project, for $48 million. The Company consolidates Pinnacle Tax Equity Holdco LLC, as primary beneficiary through its consolidated subsidiary Pinnacle Repowering Partnership LLC, who acts as managing member. In addition, upon completion of the repowering, the Company made a payment of $64 million, which was utilized along with the proceeds of the tax equity investment to repay the outstanding debt under the financing agreement referenced above. The Company utilizes the HLBV method to determine the net income or loss allocated to tax equity noncontrolling interest.

Rattlesnake TE Holdco LLC — As described in Note 3, Acquisitions and Dispositions, on January 12, 2021, the Company acquired CEG's equity interest and a third-party investor's minority interest in CWSP Rattlesnake Holding LLC for $132 million. CWSP Rattlesnake Holding LLC owns Rattlesnake Class B LLC, which owns the Class B membership interests in Rattlesnake TE Holdco LLC, which is a VIE. Rattlesnake Class B LLC is the primary beneficiary and managing member and consolidates its interest in Rattlesnake TE Holdco LLC, which owns the Rattlesnake wind project. Subsequent to the acquisition, on January 12, 2021 the third-party tax equity investor contributed $107 million into Rattlesnake TE Holdco LLC in exchange for the Class A membership interests. The proceeds from the tax equity contribution along with cash contributed by CEG were used to repay a portion of the $176 million of the outstanding principal under the Rattlesnake Class B LLC credit facility. The Company utilizes the HLBV method to determine the net income or loss allocated to tax equity noncontrolling interest.

DGPV Holdco 3 Consolidation — DGPV Holdco 3 LLC or DGPV Holdco 3 owned approximately 113 MW of Distributed Solar capacity, based on cash to be distributed, with a weighted average remaining contract life of approximately 21 years. On May 29, 2020, the final construction projects for DGPV Holdco 3 were placed in service which resulted in a reconsideration event for consolidation of the entity. Upon the reconsideration event, the Company determined that it was the primary beneficiary of DGPV Holdco 3, as it is entitled to 99% of allocations of income and cash distributions from the entity. As such, effective on May 29, 2020, the Company consolidates DGPV Holdco 3, and records the interest owned by CEG as noncontrolling interest. DGPV Holdco 3 owns an interest in two tax equity funds with tax equity investors, both of which are consolidated by DGPV Holdco 3, and the interests owned by the tax equity investors are shown as noncontrolling interests. The Company removed its equity method investment in DGPV Holdco 3 of $155 million as of May 29, 2020 and recorded the difference between the net assets consolidated and the investment balance as a reduction to noncontrolling interests. The Company acquired CEG's interest in DGPV Holdco 3 on November 2, 2020 as further described in Note 3, Acquisitions and Dispositions and below.

Prior to the reconsideration event described above, the Company invested $10 million of cash in DGPV Holdco 3 during the first half of 2020.

DGPV Tax Equity Funds — As described in Note 3, Acquisitions and Dispositions, on November 2, 2020, the Company acquired the Class B membership interests in DGPV Holdco 1, DGPV Holdco 2 and DGPV Holdco 3, or the DGPV Holdco Entities, from Renew DG Holdings LLC, a subsidiary of CEG. The Company previously held the Class A membership interests in the DGPV Holdco Entities and accounted for its interests in DGPV Holdco 1 and DGPV Holdco 2 as equity method investments, while DGPV Holdco 3 was consolidated by the Company effective May 29, 2020 as further described above. Concurrent with the acquisition, the Company transferred its interests to DG-CS Master Borrower LLC. Effective with the acquisition of the Class B membership interests of the DGPV Holdco Entities, the Company consolidates all of the DGPV Holdco Entities, including DG-CS Master Borrower LLC, and its subsidiaries, which consist of seven projects including six tax equity funds that collectively own approximately 172 distributed solar projects with a combined 286 MW of capacity. Each of the six tax equity funds is a VIE, where the Company is the primary beneficiary and consolidates the fund, with the tax equity investor's interest shown as noncontrolling interest or redeemable noncontrolling interest. The Company utilizes the HLBV method to determine its share of the income or losses in the investees. The Company removed its equity method investments in DGPV Holdco 1 and DGPV Holdco 2 of $144 million as of November 2, 2020 and recorded the difference between the net assets consolidated and the investment balance as a reduction to noncontrolling interests.

Langford Tax Equity Partnership, LLC — As described in Note 3, Acquisitions and Dispositions, on November 20, 2020, the Company acquired 100% of the Class B membership interest in Langford Holding LLC from CEG for $55 million as well as 100% of the Class A membership interests in Langford Holding LLC from a third-party investor for $9 million. Langford Holding LLC owns 100% of the membership interests in Langford Class B Holdco LLC, which owns 100% of the Class B interest in Langford Tax Equity Partnership LLC, which indirectly owns 100% of the interest in a 160 MW wind project. Langford Tax Equity Partnership LLC is a variable interest entity. The Company is the primary beneficiary, through its position as managing member, and indirectly consolidates Langford Tax Equity Partnership LLC, through Langford Class B Holdco LLC. The Class A member is a tax equity investor whose interest is reflected as noncontrolling interest on the Company's consolidated balance sheet. The project achieved repowering COD in November 2020. The Company utilizes the HLBV method for income or loss allocation to the tax equity investor's noncontrolling interest.

Lighthouse Partnership Arrangements

Lighthouse Renewable Holdco LLC — As described in Note 3, Acquisitions and Dispositions, on September 1, 2020, the Company, through its indirect subsidiary Lighthouse Renewable Class A LLC, acquired the Class A membership interests in Lighthouse Renewable Holdco LLC (formerly Mesquite Star Pledgor LLC) from Clearway Renew LLC, a subsidiary of CEG. Lighthouse Renewable Holdco LLC is a VIE and at the time of the acquisition the Company was not the primary beneficiary. Accordingly, the Company recorded the acquired interest as an equity method investment.

On December 21, 2020, CEG sold its Class B membership interest in Lighthouse Renewable Holdco LLC to a third-party investor which resulted in a reconsideration event for consolidation of the entity. Upon the reconsideration event, the Company determined that it was the primary beneficiary of Lighthouse Renewable Holdco LLC. As such, effective on December 21, 2020, the Company consolidates Lighthouse Renewable Holdco LLC, and shows the Class B interests owned by the third-party investor as noncontrolling interests on the Company’s consolidated balance sheet. Through its Class A membership interests, the Company receives 50.01% of income and distributable cash. In addition, Lighthouse Renewable Holdco LLC holds the Class B interests in a tax equity fund, Mesquite Star Tax Equity Holdco LLC, that holds the Mesquite Star project. The tax equity investor's interest is shown as noncontrolling interest. The HLBV method is utilized to allocate the income or losses of Mesquite Star Tax Equity Holdco LLC. As described in Note 3, Acquisitions and Dispositions, on December 29, 2021, Lighthouse Renewable Holdco LLC, through its indirect wholly-owned subsidiary, Lighthouse Renewable Holding Sub LLC, acquired the Class B interests in a partnership, Black Rock Wind Holding LLC, which consolidates, as the direct owner of the primary beneficiary, a tax equity fund, Black Rock TE Holdco LLC, that holds the Black Rock wind project. The tax equity investor’s interest is shown as noncontrolling interest and the HLBV method is utilized to allocate the income or losses of Black Rock TE Holdco LLC. As described in Note 3, Acquisitions and Dispositions, the third-party investor in Lighthouse Renewable Holdco LLC also acquired and contributed an interest in Black Rock Wind Holding LLC to Lighthouse Renewable Holdco LLC. The Company recorded the related noncontrolling interest at historical carrying amount, with the offset to additional paid-in capital.

Lighthouse Renewable Holdco 2 LLC — On December 17, 2021, the Company formed Lighthouse Renewable Holdco 2 LLC, a partnership between the Company and a third-party investor. Lighthouse Renewable Holdco 2 LLC is a VIE and the Company is the primary beneficiary, through its role as managing member. As described in Note 3, Acquisitions and Dispositions, on December 17, 2021, Lighthouse Renewable Holdco 2 LLC acquired the Class B interests in a partnership, Mesquite Sky Holding LLC, which consolidates, as the direct owner of the primary beneficiary, a tax equity fund, Mesquite Sky TE Holdco LLC, that holds the Mesquite Sky wind project. The tax equity investor’s interest is shown as noncontrolling interest and the HLBV method is utilized to allocate the income or losses of Mesquite Sky TE Holdco LLC. As described in Note 3, Acquisitions and Dispositions, the third-party investor in Lighthouse Renewable Holdco 2 LLC also acquired and contributed an interest in Mesquite Sky Holding LLC to Lighthouse Renewable Holdco 2 LLC. The Company recorded the related noncontrolling interest at historical carrying amount, with the offset to additional paid-in capital.

Rosie TargetCo LLC — As described in Note 3, Acquisitions and Dispositions, on December 21, 2020, the Company acquired 100% of CEG's Class A membership interests of Rosie TargetCo LLC which owns 100% interest in Rosie Class B LLC, which in turn owns 100% of the Class B membership interest of Rosie TE Holdco LLC. The Company consolidates Rosie TargetCo LLC as a VIE as the Company is the primary beneficiary, through its role as managing member. The Class B membership interest of Rosie TargetCo LLC is owned by a third-party investor and is reflected as noncontrolling interest on the Company’s consolidated balance sheet. Through its Class A membership interests in Rosie TargetCo LLC, the Company receives 50% of income and distributable cash. Rosie TargetCo indirectly consolidates Rosie TE Holdco LLC, which is also a VIE. The tax equity investor's interest is shown as noncontrolling interest. The HLBV method is utilized to allocate the income or losses of Rosie TE Holdco LLC.

Kawailoa Partnership — On August 31, 2018, the Company entered into an agreement with Clearway Renew LLC, a subsidiary of CEG, to acquire the Class A membership interests in the Kawailoa Solar Partnership LLC, or Kawailoa Partnership, for $9 million in cash consideration. The purpose of the partnership is to own, finance, operate, and maintain the Kawailoa Solar project, a 49 MW utility-scale solar generation project, an indirect subsidiary of the Kawailoa Partnership, located in Oahu, Hawaii. The Kawailoa Solar project is contracted to sell power under a 22-year PPA with Hawaiian Electric Company, or HECO. The Kawailoa Solar project is 51% owned by the Kawailoa Partnership, with the remaining 49% owned by a third-party investor. The Kawailoa Partnership consolidates the Kawailoa Solar project through its controlling majority interest. On May 7, 2019, the Company made an initial capital contribution of $2 million, which represents 20% of its total anticipated capital contributions. The Company assumed non-recourse debt of $120 million, as further described in Note 10, Long-term Debt, and non-controlling interests attributable to third parties in the amount of $21 million. Effective May 1, 2019, the Company, as a Class A member, is the primary beneficiary through its position as managing member and consolidates Kawailoa Partnership. Allocations of income and taxable items are equal to the distributions of available cash, which is currently 95% to the Company and 5% to Clearway Renew LLC. The Company's acquisition of the Class A membership interests in the Kawailoa Partnership was accounted for as a transfer of assets under common control and was recorded at historical cost in accordance with ASC 805-50, Business Combinations — Related Issues. The difference between the cash paid and payable recorded and the historical value of the assets was recorded as a distribution to CEG and decreased the balance of its noncontrolling interest.

Upon reaching COD in November of 2019, the Kawailoa Solar project's fixed assets were placed in service and began to depreciate. On December 22, 2019, Kawailoa Solar Holdings LLC, a tax equity fund, received its final equity contribution of $61 million. The proceeds were utilized to repay the ITC bridge loan in the amount of $57 million, and the construction debt was converted to term debt (and upsized, with an additional $5 million drawn). Distributions were paid to the third-party investor and Clearway Renew LLC, funded by the excess of the tax equity investment and the term loan upsizing above the amount of the bridge loan repayment and related fees. On December 27, 2019, the Company made its substantial completion contribution of $7 million into the Kawailoa Partnership, which was also utilized to make a distribution to Clearway Renew LLC. In addition, the Company started applying HLBV to allocate income attributable to the tax equity investor during the fourth quarter of 2019.

Oahu Partnership — On August 31, 2018, the Company entered into an agreement with Clearway Renew LLC, a subsidiary of CEG, to acquire the Class A membership interests in the Zephyr Oahu Partnership LLC, or Oahu Partnership, for $20 million in cash consideration. The purpose of the partnership is to own, finance, operate, and maintain the Oahu Solar projects, which consist of Lanikuhana and Waipio, utility-scale solar generation projects with rated capacity of 15 MW and 46 MW, respectively, the indirect subsidiaries of the Oahu Partnership, located in Oahu, Hawaii. The Oahu Solar projects are contracted to sell power under a 22-year PPA with HECO. The Oahu Partnership consolidates the Oahu Solar projects through its controlling majority interest. On March 8, 2019, the Company made an initial capital contribution of $4 million, which represents 20% of its total anticipated capital contributions. The Company also assumed non-recourse debt of $143 million, as further described in Note 10, Long-term Debt, and $18 million of non-controlling interest attributable to a tax equity investor's initial contribution. Effective March 8, 2019, the Company, as a Class A member, is the primary beneficiary through its position as managing member and consolidates Oahu Partnership. Allocations of income and taxable items are equal to the distributions of available cash, which is currently 95% to the Company and 5% to Clearway Renew LLC. The Company's acquisition of the Class A membership interests in the Oahu Partnership was accounted for as a transfer of assets under common control and was recorded at historical cost in accordance with ASC 805-50, Business Combinations - Related Issues. The difference between the cash paid and payable recorded and the historical value of the assets was recorded as a contribution from CEG and increased the balance of its noncontrolling interest.

Upon reaching COD in September 2019, the Oahu Solar projects' fixed assets were placed in service and began to depreciate. On November 12, 2019, the tax equity investor made its final tax-equity contribution of $71 million and the proceeds were utilized to repay the related ITC bridge loan in the amount of $67 million, and the construction loan was converted to term debt. The Company paid the remaining 80% of the equity commitment in the amount of $16 million to Clearway Renew LLC when the Oahu Solar projects reached certain milestones in December 2019. In addition, the Company started applying HLBV to allocate income attributable to the tax equity investor during the third quarter of 2019.

Repowering Partnership II LLC — On August 30, 2018, Wind TE Holdco, an indirect subsidiary of the Company, formed Repowering Partnership LLC with Clearway Renew LLC, an indirect subsidiary of CEG, in order to facilitate the repowering of wind facilities of two of its indirect subsidiaries, Elbow Creek Wind Project LLC, or Elbow Creek, and Wildorado Wind LLC, or Wildorado Wind. Wind TE Holdco contributed its interests in the two facilities and Clearway Renew LLC contributed a turbine supply agreement, including title to certain components that qualify for production tax credits. Wind TE Holdco is the managing member of the partnership and consolidates the entity, which is a VIE. Clearway Renew LLC is initially entitled to allocations of 21% of income, which is reflected in Wind TE Holdco’s noncontrolling interests.

On June 14, 2019, Repowering Partnership LLC was replaced with Repowering Partnership II LLC as the owner of the Elbow Creek and Wildorado Wind projects as well as Repowering Partnership Holdco LLC, which concurrently entered into a financing agreement for construction debt commitment totaling $352 million, as further described in Note 10, Long-term Debt.

Repowering of the Elbow Creek project was completed and on November 26, 2019, a third-party tax equity investor purchased 100% of the Class A membership interests in Elbow Creek Repowering Tax Equity Holdco LLC, or Elbow TE Holdco for $89 million pursuant to a membership interest purchase agreement dated June 14, 2019. The Company also contributed $4 million. In connection with the completion of the Elbow Creek repowering, the construction loan of $93 million was repaid with the proceeds from the combined proceeds from the tax equity investor and the Company. The Company began applying HLBV during the fourth quarter to allocate income between the partners of Elbow TE Holdco. In connection with the closing, the allocations of income at Repowering Partnership II LLC (which indirectly consolidates both projects) changed to 59.63% for Wind TE Holdco LLC (the Company member) and 40.37% for CWSP Wildorado Elbow Holding LLC (the CEG member). In addition, approximately half of the repowered Wildorado equipment was placed in service in December 2019, with the remaining equipment being placed in service in January of 2020. In connection with repowering of the projects, the Company revised the remaining useful life of the property, plant and equipment that was replaced, resulting in additional expense of $54 million during the year ended December 31, 2019 related to accelerated depreciation.

On February 7, 2020, a third-party tax equity investor purchased 100% of the Class A membership interests in Wildorado TE Holdco, for $148 million. In addition, the Company contributed $112 million to Wildorado TE Holdco. The combined proceeds were used to repay construction debt under the Repowering Partnership Holdco credit agreement, as described in Note 10, Long-term Debt. The third-party tax equity investor, or Wildorado Investor, will receive 99% of allocations of taxable income and other items until the Wildorado Investor obtains a specified return on its initial investment, or the last day of the PTC period, whichever occurs sooner. At such time, the allocations to the Wildorado Investor will change to 5%. Until such time, the Wildorado Investor will receive a variable percentage of cash distributions. Wildorado TE Holdco is a VIE and the Repowering Partnership II LLC is the primary beneficiary through its position as managing member. As a result, the Company consolidates Wildorado TE Holdco, with the Wildorado Investor's interest shown as noncontrolling interest. In connection with the Wildorado TE Holdco closing, the allocations of income at Repowering Partnership II LLC changed to 60.14% for Wind TE Holdco LLC (the Company member) and 39.86% for CWSP Wildorado Elbow Holding LLC (the CEG member).

On May 11, 2020, the Company acquired CEG's interest in Repowering Partnership II LLC, for cash consideration of $70 million. Repowering Partnership II LLC is no longer a VIE and subsequent to the acquisition, is a wholly-owned subsidiary of the Company. Repowering Partnership II LLC continues to own interests in two VIEs, Wildorado Repowering Tax Equity Holdco LLC, or Wildorado TE Holdco, and Elbow Creek Repowering Tax Equity Holdco LLC, or Elbow Creek TE Holdco. The Company removed the related noncontrolling interest balance of $8 million and recorded the difference between the cash paid and the noncontrolling interest balance removed as a reduction to noncontrolling interests. The Company utilizes the HLBV method to determine the net income or loss allocated to tax equity noncontrolling interest.

Alta TE Holdco — On June 30, 2015, the Company sold an economic interest in Alta TE Holdco to a financial institution in order to monetize certain cash and tax attributes, primarily PTCs. The financial institution, or Alta Investor, receives 99% of allocations of taxable income and other items until the flip point, which occurs when the Alta Investor obtains a specified return on its initial investment, at which time the allocations to the Alta Investor change to 5%. The Company receives 94.34% until the flip point, at which time the allocations to the Company of distributable cash will change to 97.12%, unless the flip point will not have occurred by a specified date, which would result in 100% of distributable cash allocated to the Alta Investor until the flip point occurs. Alta TE Holdco is a VIE and the Company is the primary beneficiary through its position as managing member, and therefore consolidates Alta TE Holdco, with the Alta Investor's interest shown as noncontrolling interest. The Company utilizes the HLBV method to determine the net income or loss allocated to the noncontrolling interest.

Spring Canyon — The Company holds 90.1% of the Class B interests in Spring Canyon II, a 32 MW wind facility, and Spring Canyon III, a 28 MW wind facility, each located in Logan County, Colorado, and Invenergy Wind Global LLC owns 9.9% of the Class B interests. The projects are financed with a partnership flip tax-equity structure with a financial institution, who owns the Class A interests, to monetize certain cash and tax attributes, primarily PTCs. Until the flip point, the Class A member receives a variable percentage of cash distributions based on the projects’ production level during the prior year. After the flip point, cash distributions are allocated 5% to the Class A member and 95% to the Company and Invenergy. Spring Canyon is a VIE and the Company is the primary beneficiary through its position as managing member, and therefore consolidates Spring Canyon. The Class A member and Invenergy's interests are shown as noncontrolling interest. The Company utilizes the HLBV method to determine the net income or loss allocated to the Class A member. Net income or loss attributable to the Class B interests is allocated to Invenergy's noncontrolling interest based on its 9.9% ownership interest.

Fair Value of Financial Instruments

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Fair value of financial instruments

Fair Value of Financial Instruments

Fair Value Accounting under ASC 820

ASC 820 establishes a fair value hierarchy that prioritizes the inputs to valuation techniques used to measure fair value into three levels as follows:

•Level 1—quoted prices (unadjusted) in active markets for identical assets or liabilities that the Company has the ability to access as of the measurement date.

•Level 2—inputs other than quoted prices included within Level 1 that are directly observable for the asset or liability or indirectly observable through corroboration with observable market data.

•Level 3—unobservable inputs for the asset or liability only used when there is little, if any, market activity for the asset or liability at the measurement date.

In accordance with ASC 820, the Company determines the level in the fair value hierarchy within which each fair value measurement in its entirety falls, based on the lowest level input that is significant to the fair value measurement.

For cash and cash equivalents, restricted cash, accounts receivable — trade, accounts payable — trade, accounts payable — affiliates and accrued expenses and current other liabilities, the carrying amounts approximates fair value because of the short-term maturity of those instruments and are classified as Level 1 within the fair value hierarchy.

The carrying amounts and estimated fair values of the Company’s recorded financial instruments not carried at fair market value or that do not approximate fair value are as follows:


	As of December 31, 2021				As of December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In millions)


Liabilities:
Long-term debt, including current portion (a)	$	7,782	$	7,997	$	7,048	$	7,020

(a) Excludes net debt issuance costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets.

The fair value of the Company's publicly-traded long-term debt is based on quoted market prices and is classified as Level 2 within the fair value hierarchy. The fair value of debt securities, non-publicly traded long-term debt and certain notes receivable of the Company are based on expected future cash flows discounted at market interest rates, or current interest rates for similar instruments with equivalent credit quality and are classified as Level 3 within the fair value hierarchy. The following table presents the level within the fair value hierarchy for long-term debt, including current portion as of December 31, 2021 and 2020:


	As of December 31, 2021				As of December 31, 2020
	Level 2		Level 3		Level 2		Level 3
	(In millions)
Long-term debt, including current portion	$	2,159	$	5,838	$	1,905	$	5,115

Recurring Fair Value Measurements

The Company records its derivative assets and liabilities at fair market value on its consolidated balance sheets. The following table presents assets and liabilities measured and recorded at fair value on the Company's consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:


	As of December 31, 2021				As of December 31, 2020
	Fair Value		Fair Value (a)		Fair Value		Fair Value (a)
(In millions)	Level 2		Level 3		Level 2		Level 3
Derivative assets

Interest rate contracts	$	6	$	—	$	1	$	—
Other financial instruments (b)	—		25		—		29
Total assets	$	6	$	25	$	1	$	29
Derivative liabilities
Commodity contracts	$	—	$	179	$	—	$	44
Interest rate contracts	63		—		129		—
Total liabilities	$	63	$	179	$	129	$	44

(a) There were no derivative assets classified as Level 1 or Level 3 and no liabilities classified as Level 1 as of December 31, 2021 and December 31, 2020.

(b) SREC contract acquired on November 2, 2020.

The following table reconciles the beginning and ending balances for instruments that are recognized at fair value in the consolidated financial statements using significant unobservable inputs:


	Year ended December 31,
		2021		2020
(In millions)	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
Beginning balance		$	(15)	$	(9)
Total losses for the period included in earnings		(93)		—
Contracts acquired		(52)		(6)
Settlements		6		—
Ending balance		$	(154)	$	(15)
Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31,		$	(93)	$	1

Derivative and Financial Instruments Fair Value Measurements

The Company's contracts are non-exchange-traded and valued using prices provided by external sources. The Company uses quoted observable forward prices to value its energy contracts. To the extent that observable forward prices are not available, the quoted prices reflect the average of the forward prices from the prior year, adjusted for inflation. As of December 31, 2021, contracts valued with prices provided by models and other valuation techniques make up 74% of derivative liabilities and 100% of other financial instruments.

The Company’s significant positions classified as Level 3 include physical commodity contracts executed in illiquid markets. The significant unobservable inputs used in developing fair value include illiquid power tenors and location pricing, which is derived by extrapolating pricing as a basis to liquid locations. The tenor pricing and basis spread are based on observable market data when available or derived from historic prices and forward market prices from similar observable markets when not available.

The following table quantifies the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of December 31, 2021:

December 31, 2021

Fair Value

Input/Range

Assets

Liabilities

Valuation Technique

Significant Unobservable Input

Low

High

Weighted Average

(In millions)

Commodity Contracts

—

(179)

Discounted Cash Flow

Forward Market Price (per MWh)

13.93

56.06

27.46

Other Financial Instruments

—

Discounted Cash Flow

Forecast annual generation levels of certain DG solar facilities

80,872 MWh

129,913 MWh

124,783 MWh

The following table provides the impact on the fair value measurements to increases/(decreases) in significant unobservable inputs as of December 31, 2021:


Significant Observable Input	Position	Change In Input	Impact on Fair Value Measurement
Forward Market Price Power	Buy	Increase/(Decrease)	Higher/(Lower)
Forward Market Price Power	Sell	Increase/(Decrease)	Lower/(Higher)
Forecast Generation Levels	Sell	Increase/(Decrease)	Higher/(Lower)

The fair value of each contract is discounted using a risk-free interest rate. In addition, a credit reserve is applied to reflect credit risk, which is, for interest rate swaps, calculated based on credit default swaps using the bilateral method. For commodities, to the extent that the Net Exposure under a specific master agreement is an asset, the Company uses the counterparty’s default swap rate. If the Net Exposure under a specific master agreement is a liability, the Company uses a proxy of its own default swap rate. For interest rate swaps and commodities, the credit reserve is added to the discounted fair value to reflect the exit price that a market participant would be willing to receive to assume the liabilities or that a market participant would be willing to pay for the assets. As of December 31, 2021, the non-performance reserve was a $17 million gain recorded primarily to total operating revenues in the consolidated statement of operations. It is possible that future market prices could vary from those used in recording assets and liabilities and such variations could be material.

Concentration of Credit Risk

In addition to the credit risk discussion as disclosed in Note 2, Summary of Significant Accounting Policies, the following item is a discussion of the concentration of credit risk for the Company's financial instruments. Credit risk relates to the risk of loss resulting from non-performance or non-payment by counterparties pursuant to the terms of their contractual obligations. The Company monitors and manages credit risk through credit policies that include: (i) an established credit approval process; (ii) monitoring of counterparties' credit limits on as needed basis; (iii) as applicable, the use of credit mitigation measures such as margin, collateral, prepayment arrangements, or volumetric limits; (iv) the use of payment netting agreements; and (v) the use of master netting agreements that allow for the netting of positive and negative exposures of various contracts associated with a single counterparty. Risks surrounding counterparty performance and credit could ultimately impact the amount and timing of expected cash flows. The Company seeks to mitigate counterparty risk by having a diversified portfolio of counterparties.

Counterparty credit exposure includes credit risk exposure under certain long-term agreements, including solar and other PPAs. As external sources or observable market quotes are not available to estimate such exposure, the Company estimates the exposure related to these contracts based on various techniques including, but not limited to, internal models based on a fundamental analysis of the market and extrapolation of observable market data with similar characteristics. A significant portion of these commodity contracts are with utilities with strong credit quality and public utility commission or other regulatory support. However, such regulated utility counterparties can be impacted by changes in government regulations or adverse financial conditions, which the Company is unable to predict.

- Definition

The entire disclosure for the fair value of financial instruments (as defined), including financial assets and financial liabilities (collectively, as defined), and the measurements of those instruments as well as disclosures related to the fair value of non-financial assets and liabilities. Such disclosures about the financial instruments, assets, and liabilities would include: (1) the fair value of the required items together with their carrying amounts (as appropriate); (2) for items for which it is not practicable to estimate fair value, disclosure would include: (a) information pertinent to estimating fair value (including, carrying amount, effective interest rate, and maturity, and (b) the reasons why it is not practicable to estimate fair value; (3) significant concentrations of credit risk including: (a) information about the activity, region, or economic characteristics identifying a concentration, (b) the maximum amount of loss the entity is exposed to based on the gross fair value of the related item, (c) policy for requiring collateral or other security and information as to accessing such collateral or security, and (d) the nature and brief description of such collateral or security; (4) quantitative information about market risks and how such risks are managed; (5) for items measured on both a recurring and nonrecurring basis information regarding the inputs used to develop the fair value measurement; and (6) for items presented in the financial statement for which fair value measurement is elected: (a) information necessary to understand the reasons for the election, (b) discussion of the effect of fair value changes on earnings, (c) a description of [similar groups] items for which the election is made and the relation thereof to the balance sheet, the aggregate carrying value of items included in the balance sheet that are not eligible for the election; (7) all other required (as defined) and desired information.

+ References + Details

Accounting for Derivative Instruments and Hedging Activities

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Accounting for derivative instruments and hedging activities

Accounting for Derivative Instruments and Hedging Activities

ASC 815 requires the Company to recognize all derivative instruments on the balance sheet as either assets or liabilities and to measure them at fair value each reporting period unless they qualify for a NPNS exception. The Company may elect to designate certain derivatives as cash flow hedges, if certain conditions are met, and defer the change in fair value of the derivatives to accumulated OCI/OCL, until the hedged transactions occur and are recognized in earnings. For derivatives that are not designated as cash flow hedges or do not qualify for hedge accounting treatment, the changes in the fair value will be immediately recognized in earnings. Certain derivative instruments may qualify for the NPNS exception and are therefore exempt from fair value accounting treatment. ASC 815 applies to the Company's energy related commodity contracts and interest rate swaps.

Interest Rate Swaps

The Company enters into interest rate swap agreements in order to hedge the variability of expected future cash interest payments. As of December 31, 2021, the Company had interest rate derivative instruments on non-recourse debt extending through 2031, a portion of which were designated as cash flow hedges. Under the interest rate swap agreements, the Company pays a fixed rate and the counterparties to the agreements pay a variable interest rate.

Energy Related Commodities

As of December 31, 2021, the Company had energy-related derivative instruments extending through 2033. At December 31, 2021, these contracts were not designated as cash flow or fair value hedges.

Volumetric Underlying Derivative Transactions

The following table summarizes the net notional volume buy/(sell) of the Company's open derivative transactions broken out by commodity as of December 31, 2021 and 2020:


		Total Volume
		December 31, 2021		December 31, 2020
Commodity	Units	(In millions)
Natural Gas	MMBtu	2		1
Power	MWh	(17)		(8)
Interest	Dollars	$	1,326	$	1,600

Fair Value of Derivative Instruments

The following table summarizes the fair value within the derivative instrument valuation on the consolidated balance sheets:


	Fair Value
	Derivative Assets				Derivative Liabilities
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
	(In millions)
Derivatives Designated as Cash Flow Hedges:
Interest rate contracts current	$	—	$	—	$	5	$	8
Interest rate contracts long-term	2		—		3		15
Total Derivatives Designated as Cash Flow Hedges	$	2	$	—	$	8	$	23
Derivatives Not Designated as Cash Flow Hedges:
Interest rate contracts current	$	—	$	—	$	17	$	25
Interest rate contracts long-term	4		1		38		81
Commodity contracts current	—		—		24		5
Commodity contracts long-term	—		—		155		39
Total Derivatives Not Designated as Cash Flow Hedges	$	4	$	1	$	234	$	150
Total Derivatives	$	6	$	1	$	242	$	173

The Company has elected to present derivative assets and liabilities on the balance sheet on a trade-by-trade basis and does not offset amounts at the counterparty level. As of December 31, 2021 and 2020, there was no outstanding collateral paid or received. The following tables summarize the offsetting of derivatives by counterparty:


	Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2021	Gross Amounts of Recognized Assets/Liabilities		Derivative Instruments		Net Amount
Commodity contracts	(In millions)

Derivative liabilities	$	(179)	$	—	$	(179)
Total commodity contracts	$	(179)	$	—	$	(179)
Interest rate contracts
Derivative assets	$	6	$	(5)	$	1
Derivative liabilities	(63)		5		(58)
Total interest rate contracts	$	(57)	$	—	$	(57)
Total derivative instruments	$	(236)	$	—	$	(236)


	Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2020	Gross Amounts of Recognized Assets/Liabilities		Derivative Instruments		Net Amount
Commodity contracts	(In millions)

Derivative liabilities	$	(44)	$	—	$	(44)
Total commodity contracts	$	(44)	$	—	$	(44)
Interest rate contracts
Derivative assets	$	1	$	—	$	1
Derivative liabilities	(129)		—		(129)
Total interest rate contracts	$	(128)	$	—	$	(128)
Total derivative instruments	$	(172)	$	—	$	(172)

Accumulated Other Comprehensive Loss

The following table summarizes the effects on the Company’s accumulated OCL balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax:


	Year ended December 31,
	2021		2020		2019
	(In millions)
Accumulated OCL beginning balance	$	(30)	$	(31)	$	(38)
Reclassified from accumulated OCL to income due to realization of previously deferred amounts	8		8		16
Mark-to-market of cash flow hedge accounting contracts	11		(7)		(9)
Accumulated OCL ending balance, net of income tax benefit of $2, $5 and $6, respectively	(11)		(30)		(31)
Accumulated OCL attributable to noncontrolling interests	(5)		(16)		(16)
Accumulated OCL attributable to Clearway Energy, Inc.	$	(6)	$	(14)	$	(15)
Losses expected to be realized from OCL during the next 12 months, net of income tax benefit of $2	$	(7)

Amounts reclassified from accumulated OCL into income are recorded to interest expense.

Impact of Derivative Instruments on the Consolidated Statements of Operations

Mark-to-market gains and losses related to the Company's derivatives are recorded in the consolidated statements of operations as follows:


	Year ended December 31,
	2021		2020		2019
	(In millions)
Interest Rate Contracts (Mark-to-market interest expense)	$	53	$	(38)	$	(65)
Commodity Contracts (Mark-to-market for economic hedging activities) (a)	(83)		(4)		(9)

(a) Relates to long-term commodity contracts at Elbow Creek Wind Project LLC, or Elbow Creek, Mesquite Star, Mt. Storm and Mesquite Sky and gains or losses are recognized in operating revenues.

A portion of the Company’s derivative commodity contracts relates to its Thermal Business for the purchase of fuel/electricity commodities based on the forecasted usage of the thermal district energy centers. Realized gains and losses on these contracts are reflected in the fuel costs that are permitted to be billed to customers through the related customer contracts or tariffs and, accordingly, no gains or losses are reflected in the consolidated statements of operations for these contracts.

See Note 6, Fair Value of Financial Instruments, for a discussion regarding concentration of credit risk.

Intangible Assets

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Intangible assets

Intangible Assets

Intangible Assets — The Company's intangible assets as of December 31, 2021 and 2020 primarily reflect intangible assets established from its business acquisitions and are comprised of the following:

•PPAs — Established predominantly with the acquisitions of the Alta Wind Portfolio, Walnut Creek, Tapestry, Laredo Ridge, Carlsbad Energy Center, Agua Caliente and the Utah Solar Portfolio. These represent the fair value of the PPAs acquired. These are amortized on a straight-line basis, over the term of the PPA.

•Leasehold Rights — Established with the acquisition of the Alta Wind Portfolio, this represents the fair value of contractual rights to receive royalty payments equal to a percentage of PPA revenue from certain projects. These are amortized as a reduction to operating revenue on a straight-line basis over the term of the PPAs.

•Customer relationships — Established with the acquisition of Energy Center Omaha and Energy Center Phoenix, these intangibles represent the fair value at the acquisition date of the businesses' customer base. The customer relationships related to Energy Center Omaha are amortized as a reduction to operating revenue, which approximates the expected discounted future net cash flows by year. These intangible assets are included in the Thermal Business and were reclassified to held for sale during the fourth quarter of 2021.

•Customer contracts — Established with the acquisition of Energy Center Phoenix, these intangibles represent the fair value at the acquisition date of contracts that primarily provide chilled water, steam and electricity to its customers. These contracts are amortized to revenues based on expected volumes. These intangible assets are included in the Thermal Business and were reclassified to held for sale during the fourth quarter of 2021.

•Emission Allowances — These intangibles primarily consist of SO2 and NOx emission allowances established with the El Segundo, Walnut Creek and Carlsbad Energy Center acquisitions. These emission allowances are held-for-use and are amortized to cost of operations, with NOx allowances amortized on a straight-line basis and SO2 allowances amortized based on units of production.

•Other — Consists of a) the acquisition date fair value of the contractual rights to a ground lease for South Trent and to utilize certain interconnection facilities for Blythe as well as land rights acquired in connection with the acquisition of Elbow Creek and Langford Wind; b) development rights related to certain solar business acquisitions; c) RECs acquired in connection with the acquisition of the Utah Solar Portfolio; and d) favorable leases acquired in connection with the acquisition of the Utah Star Portfolio.

The following tables summarize the components of intangible assets subject to amortization:


Year ended December 31, 2021	PPAs		Leasehold Rights		Customer Relationships		Customer Contracts		Emission Allowances		Other		Total
(In millions)
January 1, 2021	$	1,661	$	86	$	66	$	15	$	17	$	12	$	1,857


Acquisitions (a)	1,324		—		—		—		—		4		1,328
Reclassified to held for sale (b)	—		—		(66)		(15)		—		—		(81)
December 31, 2021	2,985		86		—		—		17		16		3,104
Less accumulated amortization	(566)		(30)		—		—		(3)		(6)		(605)
Net carrying amount	$	2,419	$	56	$	—	$	—	$	14	$	10	$	2,499

(a) The weighted average life of acquired intangibles was 17 years for PPAs, 15 years for RECs and 15 years for favorable leases.

(b) Thermal Business intangible assets were reclassified to held for sale during the fourth quarter of 2021.


Year ended December 31, 2020	PPAs		Leasehold Rights		Customer Relationships		Customer Contracts		Emission Allowances		Other		Total
(In millions)
January 1, 2020	$	1,630	$	86	$	66	$	15	$	17	$	8	$	1,822
Consolidation of DGPV Holdco Entities	23		—		—		—		—		—		23
Other	8		—		—		—		—		4		12
December 31, 2020	1,661		86		66		15		17		12		1,857
Less accumulated amortization	(431)		(26)		(11)		(11)		(3)		(5)		(487)
Net carrying amount	$	1,230	$	60	$	55	$	4	$	14	$	7	$	1,370

The Company recorded amortization expense of $143 million during the year ended December 31, 2021, $91 million for the year ended December 31, 2020 and $73 million for the year ended December 31, 2019. Of these amounts, $135 million for the year ended December 31, 2021, $88 million for the year ended December 31, 2020 and $72 million for the year ended December 31, 2019, were related to the amortization of intangible assets for power purchase agreements and were recorded to contract amortization expense, which reduced operating revenues in the consolidated statements of operations. The Company estimates the future amortization expense for its intangibles for the next five years as follows:


	(In millions)
2022	$	158
2023	155
2024	153
2025	153
2026	153

Asset Impairments	12 Months Ended
Asset Impairments	Dec. 31, 2021
Goodwill and Intangible Assets Disclosure [Abstract]
Asset impairments	Asset Impairments 2021 Impairment Losses During the fourth quarter of 2021 in preparation and review of its annual budget, the Company updated its long-term estimates of operating and capital expenditures and revised its assessment of long-term merchant power prices, which was primarily informed by present conditions and did not contemplate future policy changes, which could impact renewable energy power prices. The annual budget process coincides with the Company's annual impairment analysis of long-lived assets. The impairment analysis reviews certain qualitative factors as well as the fair value of the facilities against its carrying value to determine if impairment indicators are present. The impairment analysis indicated that the projected future cash flows for several wind projects within the Renewables segment no longer supported the recoverability of the carrying value of the related long-lived assets. As such, the Company recorded an impairment loss of $6 million, which primarily related to property, plant, and equipment to reflect the assets at fair market value. The fair value of the facilities was determined using an income approach by applying a discounted cash flow methodology to the updated long-term budgets for each respective plant. The income approach included key inputs such as forecasted merchant power prices, operations and maintenance expense, and discount rates. The resulting fair value is a Level 3 fair value measurement. 2020 Impairment Losses During the fourth quarter of 2020 in preparation and review of its annual budget, the Company updated its long-term estimates of operating and capital expenditures and revised its assessment of long-term merchant power prices, which was primarily informed by present conditions and did not contemplate future policy changes, which could impact renewable energy power prices. The annual budget process coincides with the Company's annual impairment analysis of long-lived assets. The impairment analysis reviews certain qualitative factors as well as the fair value of the facilities against its carrying value to determine if impairment indicators are present. The impairment analysis indicated that the projected future cash flows for several wind projects within the Renewables segment no longer supported the recoverability of the carrying value of the related long-lived assets. As such, the Company recorded an impairment loss of $24 million, which primarily related to property, plant, and equipment to reflect the assets at fair market value. The fair value of the facilities was determined using an income approach by applying a discounted cash flow methodology to the updated long-term budgets for each respective plant. The income approach included key inputs such as forecasted merchant power prices, operations and maintenance expense, and discount rates. The resulting fair value is a Level 3 fair value measurement. Additionally, during the fourth quarter of 2020, as the Company updated its estimated cash flows in connection with the preparation and review of the Company's annual budget, the Company determined that there was a significant decrease in the estimated future cash flows for its equity method investment in San Juan Mesa, a facility in the Renewables segment located in Elida, New Mexico. The decrease in the forecasted cash flows which was primarily driven by a decline in forecasted revenue in future merchant periods, was significant enough to be considered an indication of a decline in value of the investment that was not temporary. The Company concluded there was an other-than-temporary impairment of its investment and recorded an impairment loss of $8 million to reflect the investment at fair market value. The resulting fair value is a Level 3 fair value measurement. 2019 Impairment Losses The Company recorded an impairment loss of $19 million related to a facility in the Thermal segment during the second quarter of 2019. The impairment was triggered by a potential sale negotiation with a third-party, which resulted in signing the purchase and sale agreement in September 2019, as further described in Note 3, Acquisitions and Dispositions. The fair value of the facility was determined using an income approach by applying a discounted cash flow methodology to the long-term budgets for each respective plant. The income approach utilized estimates of discounted future cash flows, which were Level 3 fair value measurement and include key inputs, such as forecasted power prices, operations and maintenance expense, and discount rates. The Company measured the impairment loss as the difference between the carrying amount and the fair value of the assets. Additionally, during the fourth quarter of 2019, as a result of the preparation and review of its annual budget and assessment of long-term merchant power prices, the Company updated its estimated future cash flows and determined that the future cash flows for several wind projects within the Renewables segment no longer supported the recoverability of the related long-lived asset. The annual budget process coincides with the Company's annual impairment analysis of long-lived assets. The impairment analysis reviewed certain qualitative factors as well as the fair value of the facilities against its carrying value to determine if impairment indicators are present. As such, the Company recorded an impairment loss of $14 million to reflect the assets at fair market value. The fair value of the facilities was determined using an income approach by applying a discounted cash flow methodology to the updated long-term budgets for each respective plant. The income approach included key inputs such as forecasted merchant power prices, operations and maintenance expense, and discount rates. The resulting fair value is a Level 3 fair value measurement.

Long-term Debt

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Long-term Debt

The Company's borrowings, including short-term and long-term portions consisted of the following:


	December 31, 2021		December 31, 2020		Interest rate % (a)	Letters of Credit Outstanding at December 31, 2021
	(In millions, except rates)
2025 Senior Notes	$	—	$	600	5.750
2026 Senior Notes	—		350		5.000
2028 Senior Notes	850		850		4.750
2031 Senior Notes	925		—		3.750
2032 Senior Notes	350		—		3.750
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, due 2023 (b)	245		—		1.750	$	83
Bridge Loan, due 2022 (c)	335		—		S+1.000
Project-level debt:
Agua Caliente Solar LLC, due 2037	684		—		2.395 - 3.633	45
Alta Wind Asset Management LLC, due 2031	13		14		L+2.625	—
Alta Wind I-V lease financing arrangements, due 2034 and 2035	756		800		5.696 - 7.015	34
Alta Wind Realty Investments LLC, due 2031	24		25		7.000	—
Borrego, due 2024 and 2038	54		57		Various	—
Buckthorn Solar, due 2025	123		126		L+1.750	21
Carlsbad Energy Holdings LLC, due 2027	136		156		L+1.625	62
Carlsbad Energy Holdings LLC, due 2038	407		407		4.120	—
Carlsbad Holdco, due 2038	205		210		4.210	6
CVSR, due 2037	652		675		2.339 -3.775	—
CVSR Holdco Notes, due 2037	169		176		4.680	13
DG-CS Master Borrower LLC, due 2040	441		467		3.510	30
Duquesne, due 2059 (d)	—		95		4.620	—
El Segundo Energy Center, due 2023	193		250		L+1.875 - L+2.500	138
Energy Center Minneapolis Series D, E, F, G, H Notes, due 2025-2037 (d)	—		327		Various	—
Kawailoa Solar Portfolio LLC, due 2026	78		81		L+1.375	14
Laredo Ridge, due 2028	72		78		L+2.125	3
Marsh Landing, due 2023	84		146		L+2.375	46
NIMH Solar, due 2024	176		191		L+2.000	10
Oahu Solar Holdings LLC, due 2026	86		89		L+1.375	10

Rosie Class B LLC, due 2027	78		80		L+1.750	17
Tapestry, due 2031	85		143		L+1.375	12
Utah Solar Holdings, due 2036	273		290		3.590	10

Walnut Creek, due 2023	74		126		L+1.750	116
WCEP Holdings, LLC, due 2023	30		35		L+3.000	—
Other	180		199		Various	201
Subtotal project-level debt	5,073		5,243
Total debt	7,778		7,043
Less current maturities	(772)		(384)
Less net debt issuance costs	(71)		(79)
Add premiums (e)	4		5
Total long-term debt	$	6,939	$	6,585

(a) As of December 31, 2021, L+ equals 3 month LIBOR plus x%, except Clearway Energy Operating LLC Revolving Credit Facility, due 2023, Marsh Landing, due 2023, and Walnut Creek, due 2023, where L+ equals 1 month LIBOR plus x%

(b) Applicable rate is determined by the borrower leverage ratio, as defined in the credit agreement

(d) Thermal Business long-term debt reclassified to held for sale in the fourth quarter of 2021

(e) Premiums relate to the 2028 Senior Notes

The financing arrangements listed above contain certain covenants, including financial covenants that the Company is required to be in compliance with during the term of the respective arrangement. As of December 31, 2021, the Company was in compliance with all of the required principal, interest, sinking fund and redemption covenants.

Bridge Loan Agreement

On November 30, 2021, Clearway Energy Operating LLC entered into a senior secured bridge credit agreement, or the Bridge Loan Agreement. The Bridge Loan Agreement provides for a senior secured term loan facility in an aggregate principal amount of $335 million. Borrowings under the term loan facility bear interest, at Clearway Energy Operating LLC’s option, at a rate per annum equal to either (a) term SOFR, plus a SOFR adjustment and a margin equal to 1.00% during the period from December 1, 2021 through May 31, 2022, and 1.25% thereafter or (b) a base rate plus a margin equal to 0.00% during the period from December 1, 2021 through May 31, 2022, and 0.25% thereafter. The Bridge Loan Agreement will mature no later than November 29, 2022 and the Company intends to use the proceeds from the Thermal Disposition to repay the outstanding principal balance of the term loans under the Bridge Loan Agreement. Borrowings under the Bridge Loan Agreement are guaranteed by Clearway Energy LLC and certain subsidiaries of Clearway Operating LLC, other than subsidiaries that are excluded project companies, and are secured by substantially all of the assets of Clearway Energy Operating LLC and its guarantor subsidiaries. The borrowings under the term loan facility were used to acquire the Utah Solar Portfolio on December 1, 2021, as further described in Note 3, Acquisitions and Dispositions.

Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility

On November 30, 2021, Clearway Energy Operating LLC entered into the Sixth Amendment to Amended and Restated Credit Agreement, which amended the Company’s revolving credit facility to provide for an increase of the maximum permitted Borrower Leverage Ratio (as defined in the credit agreement governing the Company’s revolving credit facility) to 6.00 to 1.00 during the period commencing on November 30, 2021 and ending on the date which is the earliest of (i) two business days following the consummation of the Thermal Disposition, (ii) 120 days following the termination or expiration of the agreement entered into with KKR to sell the Thermal Business and (iii) the maturity date of the Bridge Loan Agreement, or the Leverage Period Termination Date. The Sixth Amendment also (i) permits the incurrence of the term loan facility under the Bridge Loan Agreement, (ii) permits the incurrence of hedging obligations, subject to certain conditions, and provides for a $40 million basket for cash collateral which may be provided to secure hedging obligations (iii) permits the prepayment of unsecured, junior or subordinated indebtedness at any time following the Leverage Period Termination Date, subject to certain conditions, including that, after giving effect to such payment, the Borrower Leverage Ratio would not be greater than 5.50 to 1.00 and the Borrower Interest Coverage Ratio (as defined in the credit agreement governing the Company's revolving credit facility) would not be less than 1.75 to 1.00 and (iv) implements certain other technical modifications.

As of December 31, 2021, the Company had $245 million in outstanding borrowings under the revolving credit facility and $83 million in letters of credit outstanding. During the year ended December 31, 2021, the Company borrowed $622 million under the revolving credit facility, and subsequently repaid $377 million utilizing cash on hand and proceeds from the issuance of the 2031 Senior Notes, as described below.

2032 Senior Notes

On October 1, 2021, Clearway Energy Operating LLC completed the sale of $350 million of senior unsecured notes due 2032, or the 2032 Senior Notes. The 2032 Senior Notes bear interest at 3.750% and mature on January 15, 2032. Interest on the 2032 Senior Notes is payable semi-annually on January 15 and July 15 of each year. The 2032 Senior Notes are unsecured obligations of Clearway Energy Operating LLC and are guaranteed by Clearway Energy LLC and by certain of Clearway Energy Operating LLC's wholly-owned current and future subsidiaries. The net proceeds from the 2032 Senior Notes were used, together with existing corporate liquidity, to repurchase the 2026 Senior Notes, as described below.

2026 Senior Notes Tender Offer and Redemption

In October 2021, the Company repurchased and redeemed an aggregate principal amount of $350 million of the 2026 Senior Notes, through the cash tender offer announced on September 24, 2021 and the redemption of the remaining principal amount of $227 million on October 25, 2021. The 2026 Senior Notes repurchased and redeemed in October 2021 were effectuated at a premium of approximately 103% for total consideration of $359 million and, as a result, the Company recorded a loss on extinguishment in the amount of $9 million. The Company recorded an additional $3 million loss on extinguishment to write off the remaining unamortized deferred financing fees related to the 2026 Senior Notes.

2031 Senior Notes

On March 9, 2021, Clearway Energy Operating LLC completed the sale of $925 million of senior unsecured notes due 2031, or the 2031 Senior Notes. The 2031 Senior Notes bear interest at 3.750% and mature on February 15, 2031. Interest on the 2031 Senior Notes is payable semi-annually on February 15 and August 15 of each year. The 2031 Senior Notes are unsecured obligations of Clearway Energy Operating LLC and are guaranteed by Clearway Energy LLC and by certain of Clearway Energy Operating LLC's wholly-owned current and future subsidiaries. The net proceeds from the 2031 Senior Notes were used to repurchase the 2025 Senior Notes, as described below, as well as to repay amounts outstanding under the Company’s revolving credit facility and for general corporate purposes.

2025 Senior Notes Tender Offer and Redemption

In March 2021, the Company repurchased and redeemed an aggregate principal amount of $600 million of the 2025 Senior Notes, through the cash tender offer announced on March 2, 2021 and the redemption of the remaining principal amount of $183 million on March 17, 2021. The 2025 Senior Notes repurchased and redeemed in March 2021 were effectuated at a premium of approximately 106% for total consideration of $636 million and, as a result, the Company recorded a loss on extinguishment in the amount of $36 million. The Company recorded an additional $5 million loss on extinguishment to write off the remaining unamortized deferred financing fees related to the 2025 Senior Notes.

2020 Convertible Notes

The 2020 Convertible Notes matured on June 1, 2020 and the Company repaid the outstanding principal amount of $45 million. The repayment was funded by the issuance of the 2028 Senior Notes.

2028 Senior Notes

On May 21, 2020, the Company completed the issuance of an additional $250 million in aggregate principal amount of its 4.750% Senior Notes due 2028. The 2028 Senior Notes bear interest at 4.75% and mature on March 15, 2028. Interest on the 2028 Senior Notes is payable semi-annually on March 15 and September 15 of each year. The 2028 Senior Notes are unsecured obligations of Clearway Energy Operating, LLC and are guaranteed by Clearway Energy, LLC and by certain of Clearway Energy Operating LLC’s wholly-owned current and future subsidiaries. The notes were issued at a price of 102% of par plus accrued interest from December 11, 2019. The net proceeds were utilized to repay the $45 million outstanding principal amount of the Company's 2020 Convertible Notes on June 1, 2020, as well as to repay amounts outstanding under the Company’s revolving credit facility and for general corporate purposes.

2024 Senior Notes Redemption

On January 3, 2020, the Company redeemed the $88 million aggregate principal amount of the 2024 Senior Notes that remained outstanding following the Company's tender offer for the 2024 Senior Notes in December 2019. The redemption was effectuated at a premium of 102.7% for a total consideration of $90 million and as a result, the Company recorded a loss on debt extinguishment in the amount of $3 million, which also included the write off of previously deferred financing fees related to the 2024 Senior Notes.

Project level Debt

Agua Caliente Solar LLC

As part of the acquisition of Agua Caliente Borrower 1 LLC and the consolidation of Agua Caliente, as further described in Note 3, Acquisitions and Dispositions, the Company consolidated non-recourse debt of $716 million related to Agua Caliente Solar, LLC on February 3, 2021. The debt consists of a credit agreement with the Federal Financing Bank and accrues interest at fixed rates between 2.395% and 3.633%, which matures in 2037.

Pinnacle Repowering Partnership HoldCo LLC

On March 10, 2021, the Company entered into a financing agreement for non-recourse debt for a total commitment of $126 million related to the repowering of the Pinnacle wind project. The debt consists of a construction loan at an interest rate of LIBOR plus 1.00%. The Company's initial borrowings of $79 million were utilized to repay $53 million of the outstanding balance under the Tapestry Wind LLC financing agreement, which related to the Pinnacle wind project, to pay vendor invoices and fees and to acquire certain equipment from Clearway Renew LLC to be utilized in the repowering project. On December 15, 2021, the Company repaid the outstanding principal amount of $117 million.

Rosamond Central (Rosie Class B LLC)

On December 21, 2020, as part of the acquisition of Rosie TargetCo LLC, as further descried in Note 3, Acquisitions and Dispositions, the Company assumed the Amended and Restated Financing Agreement, which provided for a construction loan of up to $91 million, a cash equity bridge loan of up to $24 million and an investment tax credit loan of up to $132 million.

On December 31, 2020, Rosie Class B, LLC converted the construction loan to a $80 million term loan and repaid the investment tax credit loan of $130 million, utilizing tax equity funding. The term loan bears annual interest at a rate of LIBOR plus an applicable margin, which is 1.75% per annum through the third anniversary of the term conversion, and 2.00% per annum thereafter through the maturity date of December 31, 2027. In addition, Rosie Class B LLC is party to several letter of credit facility agreements, not to exceed $23 million. As of December 31, 2021, a total of $17 million in letters of credit were outstanding.

Consolidation of DGPV Holdco 3

Upon consolidation of DGPV Holdco 3, as described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities, the Company consolidates additional non-recourse debt for certain subsidiaries as further described below.

Renew CS4 Borrower LLC, or CS4 Borrower, a consolidated subsidiary of DGPV Holdco 3, is party to a credit agreement for construction loans up to $97 million, an investment tax credit bridge loan, or ITC bridge loan, for up to $90 million and letter of credit facilities up to $5 million. The construction loan and the ITC bridge loan both have an interest rate of LIBOR plus an applicable margin of 2.00% per annum. As of June 30, 2020, all construction loans were converted to term loans and the ITC bridge loans were repaid in connection with tax equity funding. The term loan was repaid on November 2, 2020 with the proceeds of the term loan issued by DG-CS Master Borrower LLC, as described below.

Chestnut Borrower LLC, a consolidated subsidiary of DGPV Holdco 3, is party to a credit agreement for term loans of up to $120 million and letters of credit of up to $8 million. The loans were repaid on November 2, 2020 with the proceeds of the term loan issued by DG-CS Master Borrower LLC, as described below

DG-CS Master Borrower LLC

On November 2, 2020, DG-CS Master Borrower LLC, a wholly-owned subsidiary of Clearway Energy Operating LLC, entered into a financing arrangement, which included the issuance of a $467 million term loan, as well as $30 million in letters of credit in support of debt service. The term loan bears interest at 3.51% and matures on September 30, 2040. The proceeds from the loan were utilized to repay existing project-level debt outstanding for Chestnut Borrower LLC, Renew Solar CS 4 Borrower LLC, DGPV 4 Borrower LLC and Puma Class B LLC of $107 million, $102 million, $92 million and $73 million, respectively and unwind related interest rate swaps in the amount of $42 million. The remaining proceeds were utilized to pay related fees and expenses and in part to acquire the Class B membership interests in the DGPV Holdco Entities and an SREC contract from CEG as further described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. Concurrent with the refinancing, the projects were transferred under DG-CS Master Borrower LLC and the obligations under the financing arrangement are supported by the Company's interest in the projects.

Utah Solar Holdings, LLC

On September 1, 2020, Utah Solar Holdings, LLC, or Utah Solar, entered into a financing arrangement, which included the issuance of approximately $296 million in senior secured notes supported by the Company’s interest in the Utah projects (Four Brothers, Granite Mountain and Iron Springs, previously defined as the Utah Solar Portfolio), as well as $16 million in letters of credit in support of debt service obligations. The notes bear interest at 3.59% per annum and mature on December 31, 2036. The proceeds from the issuance were utilized to repay existing debt outstanding of approximately $247 million for the Utah projects and to unwind the related interest rate swaps in the amount of $33 million. The remaining proceeds were utilized to pay related fees and expenses, with the remaining $9 million distributed to Clearway Energy Operating LLC.

NIMH Solar LLC

On September 30, 2020, the Alpine, Blythe and Roadrunner projects were transferred under NIMH Solar LLC, a wholly-owned subsidiary of Clearway Energy Operating LLC. Concurrently, total project-level debt outstanding for Alpine, Blythe and Roadrunner of $158 million was assigned to NIMH Solar LLC. The consolidated facility was amended to a term loan for $193 million, as well as $16 million in letters of credit in support of debt service and project obligations. The term loan bears interest at an annual rate of LIBOR, plus an applicable margin, which is 2.00% per annum through the third anniversary of closing, and 2.125% per annum thereafter through the maturity date in September 2024. As a result of the amendment the Company received $35 million, which was utilized to pay related fees and expenses and along with existing project level cash, provided a distribution to Clearway Energy Operating LLC of $45 million. The obligations under the financing arrangement are supported by the Company’s interests in the projects.

Interest Rate Swaps — Project Financings

Many of the Company's project subsidiaries entered into interest rate swaps, intended to hedge the risks associated with interest rates on non-recourse project level debt. These swaps amortize in proportion to their respective loans and are floating for a fixed rate where the project subsidiary pays its counterparty the equivalent of a fixed interest payment on a predetermined notional value and will receive quarterly the equivalent of a floating interest payment based on the same notional value. All interest rate swap payments by the project subsidiary and its counterparty are made quarterly and the LIBOR is determined in advance of each interest period.

The following table summarizes the swaps, some of which are forward starting as indicated, related to the Company's project level debt as of December 31, 2021:


	% of Principal		Fixed Interest Rate		Floating Interest Rate	Notional Amount at December 31, 2021 (In millions)		Effective Date	Maturity Date
Avra Valley	88	%	2.33	%	3-Month LIBOR	$	35	November 30, 2012	November 30, 2030
Alta Wind Asset Management	100	%	2.47	%	3-Month LIBOR	13		May 22, 2013	May 15, 2031
Borrego	100	%	0.476	%	3-Month LIBOR	10		June 30, 2020	December 31, 2024
Buckthorn Solar	81	%	Various		3-Month LIBOR	100		February 28, 2018	December 31, 2041
Carlsbad	100	%	Various		3-Month LIBOR	136		Various	September 30, 2027
El Segundo	100	%	Various		3-Month LIBOR	193		Various	Various
Kansas South	75	%	2.368	%	6-Month LIBOR	15		June 28, 2013	December 31, 2030
Kawailoa Solar	94	%	Various		3-Month LIBOR	74		November 30, 2019	October 31, 2040
Laredo Ridge	100	%	Various		3-Month LIBOR	72		December 17, 2014	December 31, 2028
Marsh Landing	100	%	Various		3-Month LIBOR	84		June 28, 2013	June 30, 2023
NIMH Solar LLC	100	%	Various		3-Month LIBOR	176		September 30, 2020	Various
Oahu Solar	96	%	Various		3-Month LIBOR	83		November 30, 2019	October 31, 2040
Rosie Class B	95	%	1.446	%	3-Month LIBOR	74		December 31, 2020	Various
South Trent	90	%	3.847	%	3-Month LIBOR	31		June 14, 2019	June 30, 2028
Tapestry	100	%	Various		3-Month LIBOR	85		Various	Various

Viento Funding II	100	%	3.03	%	6-Month LIBOR	29		Various	Various
Viento Funding II	100	%	4.985	%	6-Month LIBOR	21		July 11, 2023	June 30, 2028
Walnut Creek Energy	90	%	3.543	%	3-Month LIBOR	66		June 28, 2013	May 31, 2023
WCEP Holdings	97	%	4.003	%	3-Month LIBOR	29		June 28, 2013	May 31, 2023
Total						$	1,326

Annual Maturities

Annual payments based on the maturities of the Company's debt, for the years ending after December 31, 2021, are as follows:


	(In millions)
2022	$	772
2023	709
2024	392
2025 (a)	369
2026 (a)	422
Thereafter (a)	5,537
Total	$	8,201

(a) Annual payments based on the maturities of Thermal Business long-term debt reclassified to held for sale in the fourth quarter of 2021 are $4 million, $15 million and $404 million due in 2025, 2026 and thereafter, respectively.

Earnings (Loss) Per Share

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Earnings (Loss) Per Share

Basic earnings per common share is computed by dividing net income by the weighted average number of common shares outstanding. Shares issued during the year are weighted for the portion of the year that they were outstanding. Diluted earnings per share is computed in a manner consistent with that of basic earnings per share while giving effect to all potentially dilutive common shares that were outstanding during the period.

The reconciliation of the Company's basic and diluted earnings (loss) per share is shown in the following table:


	Year Ended December 31,
	2021				2020				2019
(In millions, except per share data) (a)	Common Class A		Common Class C		Common Class A		Common Class C		Common Class A		Common Class C
Basic and diluted earnings (loss) per share attributable to Clearway Energy, Inc. common stockholders
Net income (loss) attributable to Clearway Energy, Inc.	$	15	$	36	$	7	$	18	$	(4)	$	(7)
Weighted average number of common shares outstanding — basic	35		82		35		80		35		74
Weighted average number of common shares outstanding — diluted	35		82		35		81		35		74
Earnings (loss) per weighted average common share — basic and diluted	$	0.44	$	0.44	$	0.22	$	0.22	$	(0.10)	$	(0.10)

(a) Net income (loss) attributable to Clearway Energy, Inc. and basic and diluted earnings (loss) per share might not recalculate due to presenting values in millions rather than whole dollars.

The Company had 2 million Common Class C shares related to the outstanding 2020 Convertible Notes that were anti-dilutive and were not included in the computation of the Company's diluted earnings per share for the year ended December 31, 2019. The 2020 Convertible Notes were repaid on June 1, 2020.

Stockholders' Equity

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Attributable to Parent [Abstract]

Stockholders' Equity

At-the-Market Equity Offering Program, or the ATM Programs

On August 6, 2020, Clearway Energy, Inc. entered into an equity distribution agreement with Credit Suisse Securities (USA) LLC, Goldman Sachs & Co. LLC, Morgan Stanley & Co. LLC and UBS Securities LLC, as sales agents. Pursuant to the terms of the equity distribution agreement, Clearway Energy, Inc. may offer and sell shares of its Class C common stock from time to time through the sales agents up to an aggregate sales price of $150 million through an at-the-market equity offering program, or the 2020 ATM Program.

On August 9, 2016, Clearway Energy, Inc. entered into an equity distribution agreement, or EDA, with Barclays Capital Inc., Credit Suisse Securities (USA) LLC, J.P. Morgan Securities LLC and RBC Capital Markets, LLC, as sales agents. Pursuant to the terms of the equity distribution agreement Clearway Energy, Inc., offered and sold shares of its Class C common stock from time to time through the sales agents up to an aggregate sales price of $150 million through an at-the-market equity offering program, or the 2016 ATM Program. As of June 30, 2020, the Company had completed the issuance of shares of Class C common stock totaling $150 million in gross proceeds under the 2016 ATM Program.

The following table summarizes Class C common stock shares sold under the ATM Programs during the year ended December 31, 2020:


	Number of shares sold	Gross Proceeds from the sale of shares(a) (in millions)
2020 ATM Program	940,790	$	24
2016 ATM Program	1,749,665	39
Total Class C common stock sold during the year ended December 31, 2020	2,690,455	$	63

(a) The Company incurred commission fees of $0.6 million during the year ended December 31, 2020.

As of December 31, 2021, approximately $126 million of Class C common stock remains available for issuance under the 2020 ATM Program.

Through December 31, 2020, the Company utilized the proceeds of the sales under the ATM Programs to acquire 2,690,455 Class C units of Clearway Energy LLC and, as a result, as of December 31, 2021, the Company owned 57.65% of the economic interests of Clearway Energy LLC, with CEG owning 42.35% of the economic interests of Clearway Energy LLC.

Dividends to Class A and Class C common stockholders

The following table lists the dividends paid on the Company's Class A and Class C common stock during the year ended December 31, 2021:


	Fourth Quarter 2021		Third Quarter 2021		Second Quarter 2021		First Quarter 2021
Dividends per Class A share	$	0.3400	$	0.3345	$	0.3290	$	0.3240
Dividends per Class C share	0.3400		0.3345		0.3290		0.3240

Dividends on the Class A and Class C common stock are subject to available capital, market conditions, and compliance with associated laws, regulations and other contractual obligations. The Company expects that, based on current circumstances, comparable cash dividends will continue to be paid in the foreseeable future.

On February 17, 2022, the Company declared a quarterly dividend on its Class A and Class C common stock of $0.3468 per share payable on March 15, 2022, to stockholders of record as of March 1, 2022.

The Company has also authorized 10,000,000 shares of preferred stock, par value $0.01 per share. None of the shares of preferred stock have been issued.

Distributions to CEG

The following table lists the distributions paid to CEG during the year ended December 31, 2021 on Clearway Energy LLC's Class B and D units:


	Fourth Quarter 2021		Third Quarter 2021		Second Quarter 2021		First Quarter 2021
Distributions per Class B unit	$	0.3400	$	0.3345	$	0.3290	$	0.3240
Distributions per Class D unit	0.3400		0.3345		0.3290		0.3240

The portion of the distributions paid by Clearway Energy LLC to CEG is recorded as a reduction to the Company's noncontrolling interest balance. The portion of the distributions paid by Clearway Energy LLC to the Company was utilized to fund the dividends to the Class A and Class C common stockholders described above.

On February 17, 2022, Clearway Energy LLC declared a quarterly distribution on its Class B and Class D units of $0.3468 per unit payable to CEG on March 15, 2022.

- Definition

The entire disclosure for shareholders' equity comprised of portions attributable to the parent entity and noncontrolling interest, including other comprehensive income. Includes, but is not limited to, balances of common stock, preferred stock, additional paid-in capital, other capital and retained earnings, accumulated balance for each classification of other comprehensive income and amount of comprehensive income.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.3-04)
-URI http://asc.fasb.org/extlink&oid=120397183&loc=d3e187085-122770

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (g)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-URI http://asc.fasb.org/topic&trid=2208762

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (h)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 14
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496171-112644

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 18
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496189-112644

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 16
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496180-112644

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 505
-SubTopic 10
-Section 50
-Paragraph 13
-Subparagraph (i)
-URI http://asc.fasb.org/extlink&oid=123467817&loc=SL123496158-112644

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(e)(1))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Segment Reporting

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Segment Reporting

The Company’s segment structure reflects how management currently operates and allocates resources. The Company's businesses are segregated based on conventional power generation, renewable businesses, which consist of solar and wind, and the Thermal Business, which is held for sale as of December 31, 2021. The Corporate segment reflects the Company's corporate costs and includes eliminating entries. The Company's chief operating decision maker, its Chief Executive Officer, evaluates the performance of its segments based on operational measures including adjusted earnings before interest, taxes, depreciation and amortization, or Adjusted EBITDA and CAFD, as well as net income (loss).

The Company generated more than 10% of its revenues from the following customers for the years ended December 31, 2021, 2020 and 2019:


	2021		2020		2019
Customer	Conventional	Renewables	Conventional	Renewables	Conventional	Renewables
SCE	17%	16%	18%	16%	21%	19%
PG&E	10%	13%	10%	8%	12%	10%


	Year ended December 31, 2021
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	441	$	641	$	204	$	—	$	1,286
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	90		229		134		(2)		451
Depreciation, amortization and accretion	132		354		23		—		509
Impairment losses	—		6		—		—		6
General and administrative	—		—		4		36		40
Transaction and integration costs	—		—		—		7		7
Development costs	—		—		4		2		6
Operating income (loss)	219		52		39		(43)		267
Equity in earnings of unconsolidated affiliates	6		26		—		—		32


Other income, net	—		2		1		—		3
Loss on debt extinguishment	—		(1)		—		(52)		(53)
Interest expense, net	(53)		(142)		(18)		(99)		(312)
Income (loss) before income taxes	172		(63)		22		(194)		(63)
Income tax expense	—		2		—		10		12
Net Income (Loss)	172		(65)		22		(204)		(75)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	172	$	109	$	22	$	(252)	$	51
Balance Sheet
Equity investment in affiliates	$	86	$	295	$	—	$	—	$	381
Capital expenditures (b)	12		77		29		1		119
Total Assets (c)	$	2,442	$	9,603	$	631	$	137	12,813

(a) Includes eliminations

(b) Includes accruals


	Year ended December 31, 2020
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	437	$	569	$	193	$	—	$	1,199
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	90		147		131		(2)		366
Depreciation, amortization and accretion	132		264		32		—		428
Impairment losses	—		24		—		—		24
General and administrative	—		—		3		31		34
Transaction and integration costs	—		—		—		9		9
Development costs	—		—		5		—		5
Operating income (loss)	215		134		22		(38)		333
Equity in earnings (losses) of unconsolidated affiliates	8		(1)		—		—		7
Impairment loss on investment	—		(8)		—		—		(8)
Gain on sale of unconsolidated affiliates	—		—		—		49		49
Other income, net	1		3		—		—		4
Loss on debt extinguishment	—		(21)		—		(3)		(24)
Interest expense, net	(84)		(216)		(19)		(96)		(415)
Income (loss) before income taxes	140		(109)		3		(88)		(54)
Income tax expense	—		—		—		8		8
Net Income (Loss)	140		(109)		3		(96)		(62)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	140	$	3	$	3	$	(121)	$	25
Balance Sheet
Equity investments in affiliates	$	90	$	651	$	—	$	—	$	741
Capital expenditures (b)	12		44		50		—		106
Total Assets	$	2,575	$	7,157	$	627	$	233	$	10,592

(a) Includes eliminations

(b) Includes accruals


	Year ended December 31, 2019
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	346	$	485	$	201	$	—	$	1,032
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	60		143		134		—		337
Depreciation, amortization and accretion	103		271		27		—		401
Impairment losses	—		14		19		—		33
General and administrative	—		1		3		25		29
Transaction and integration costs	—		—		—		3		3
Development costs	—		—		5		—		5
Operating income (loss)	183		56		13		(28)		224
Equity in earnings of unconsolidated affiliates	9		74		—		—		83
Other income, net	2		6		—		1		9
Loss on debt extinguishment	—		(1)		—		(15)		(16)
Interest expense, net	(59)		(239)		(18)		(88)		(404)
Income (loss) before income taxes	135		(104)		(5)		(130)		(104)
Income tax benefit	—		—		—		(8)		(8)
Net Income (Loss)	135		(104)		(5)		(122)		(96)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	135	$	(33)	$	(5)	$	(108)	$	(11)

- Definition

The entire disclosure for reporting segments including data and tables. Reportable segments include those that meet any of the following quantitative thresholds a) it's reported revenue, including sales to external customers and intersegment sales or transfers is 10 percent or more of the combined revenue, internal and external, of all operating segments b) the absolute amount of its reported profit or loss is 10 percent or more of the greater, in absolute amount of 1) the combined reported profit of all operating segments that did not report a loss or 2) the combined reported loss of all operating segments that did report a loss c) its assets are 10 percent or more of the combined assets of all operating segments.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 34
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8981-108599

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 40
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9031-108599

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (e)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 26
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8844-108599

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 41
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9038-108599

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 42
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e9054-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8657-108599

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 21
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8721-108599

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-URI http://asc.fasb.org/topic&trid=2134510

+ Details

Income Taxes

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Income Taxes

Effective Tax Rate

The income tax provision consisted of the following amounts:


	Year Ended December 31,
	2021		2020		2019
	(In millions)




Deferred
U.S. Federal	$	(2)	$	7	$	(4)
State	14		1		(4)
Total — deferred	12		8		(8)
Total income tax expense (benefit)	$	12	$	8	$	(8)

A reconciliation of the U.S. federal statutory rate of 21% to the Company's effective rate is as follows:


	Year Ended December 31,
	2021			2020			2019
	(In millions, except percentages)
Income Before Income Taxes	$	(63)		$	(54)		$	(104)
Tax at 21%	(13)			(11)			(22)
State taxes, net of federal benefit	(4)			(4)			(7)


Impact of non-taxable equity earnings	34			24			24
Valuation allowance	(14)			—			—
Investment tax credits	—			—			(1)
Production tax credits, including prior year true-up	(1)			(1)			(1)

Rate Change	(2)			2			—
Partnership state basis	8			—			—
State taxes assessed at subsidiaries	2			—			—
Other	2			(2)			(1)
Income tax expense (benefit)	$	12		$	8		$	(8)
Effective income tax rate	(19.0)		%	(14.8)		%	7.7		%

For the years ended December 31, 2021, 2020 and 2019, the overall effective tax rate was different than the statutory rate of 21% primarily due to the taxable earnings and losses allocated to partners’ interest in Clearway Energy LLC, which includes the effects of applying the HLBV method of accounting for book purposes of certain partnerships.

For tax purposes, Clearway Energy LLC is treated as a partnership; therefore, the Company and CEG each record their respective share of taxable income or loss.

The temporary differences, which gave rise to the Company's deferred tax assets, consisted of the following:


	As of December 31,
	2021		2020
	(In millions)
Deferred tax liabilities:
Investment in projects	$	267	$	226
Total deferred tax liabilities	267		226
Deferred tax assets:


Interest expense disallowance carryforward - Investment in Projects	7		11
Production tax credits	10		9
Investment tax credits	5		5
U.S. Federal net operating loss carryforwards	277		260
Capital loss carryforwards	—		12
State net operating loss carryforwards	51		48
Total deferred tax assets	350		345
Valuation allowance	(1)		(15)
Total deferred tax assets, net of valuation allowance	349		330
Net deferred noncurrent tax asset	$	82	$	104

Tax Receivable and Payable

As of December 31, 2021, the Company has no current or long-term tax receivable or payable to be recorded.

Deferred Tax Assets and Valuation Allowance

Net deferred tax balance — As of December 31, 2021 and 2020, the Company recorded a net deferred tax asset of $82 million and $104 million, respectively. The Company believes it is more likely than not that the results of future operations will generate sufficient taxable income which includes the future reversal of existing taxable temporary differences to realize deferred tax assets. The Company considered the profit before tax generated in recent years as well as projections of future earnings and estimates of taxable income in arriving at this conclusion. The Company believes that $1 million of existing state NOLs, based on forecasted future earnings and estimated taxable income, will expire unutilized, resulting in the recording of a valuation allowance.

NOL carryforwards — As of December 31, 2021, the Company had domestic NOLs carryforwards for federal income tax purposes of $277 million and cumulative state NOLs of $51 million tax-effected.

Interest disallowance carryforward — As of December 31, 2021, the Company has a deferred tax asset of $7 million related to disallowed interest expense under the proposed IRC §163(j) regulation.

The disallowed interest deduction has an indefinite carry forward period and any limitations on the utilization of this carryforward have been factored into the valuation allowance analysis.

Uncertain Tax Positions

The Company has not identified any uncertain tax positions to be reported as of December 31, 2021.

- Definition

The entire disclosure for income taxes. Disclosures may include net deferred tax liability or asset recognized in an enterprise's statement of financial position, net change during the year in the total valuation allowance, approximate tax effect of each type of temporary difference and carryforward that gives rise to a significant portion of deferred tax liabilities and deferred tax assets, utilization of a tax carryback, and tax uncertainties information.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 21
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32857-109319

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SAB Topic 11.C)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330215-122817

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 17
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32809-109319

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SAB TOPIC 6.I.5.Q1)
-URI http://asc.fasb.org/extlink&oid=122134291&loc=d3e330036-122817

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 10
-Section 50
-Paragraph 14
-URI http://asc.fasb.org/extlink&oid=121826272&loc=d3e32705-109319

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 270
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=6424409&loc=d3e44925-109338

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-URI http://asc.fasb.org/topic&trid=2144680

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 740
-SubTopic 30
-Section 50
-Paragraph 2
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=6424122&loc=d3e41874-109331

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 235
-SubTopic 10
-Section S99
-Paragraph 1
-Subparagraph (SX 210.4-08(h)(2))
-URI http://asc.fasb.org/extlink&oid=120395691&loc=d3e23780-122690

+ Details

Related Party Transactions	12 Months Ended
Related Party Transactions	Dec. 31, 2021
Related Party Transactions [Abstract]
Related Party Transactions	Related Party Transactions In addition to the transactions and relationships described elsewhere in the notes to the consolidated financial statements, certain subsidiaries of CEG provide services to the Company and its project entities. Amounts due to CEG subsidiaries are recorded as accounts payable — affiliates and amounts due to the Company from CEG subsidiaries are recorded as accounts receivable — affiliates in the Company's consolidated balance sheet. The disclosures below summarize the Company's material related party transactions with CEG and its subsidiaries that are included in the Company's operating costs. O&M Services Agreements by and between the Company and Clearway Renewable Operation & Maintenance LLC Various wholly-owned subsidiaries of the Company in the Renewables segment are party to services agreements with Clearway Renewable Operation & Maintenance LLC, or RENOM, a wholly-owned subsidiary of CEG, which provides operation and maintenance, or O&M, services to these subsidiaries. The Company incurred total expenses for these services of $56 million, $37 million and $31 million for the years ended December 31, 2021, 2020 and 2019, respectively. There was a balance of $9 million and $10 million due to RENOM as of December 31, 2021 and 2020, respectively. Administrative Services Agreements by and between the Company and CEG Various wholly-owned subsidiaries of the Company are parties to services agreements with Clearway Asset Services LLC and Clearway Solar Asset Management LLC, two wholly-owned subsidiaries of CEG, which provide various administrative services to the Company's subsidiaries. The Company incurred expenses under these agreements of $14 million, $10 million and $7 million for the years ended December 31, 2021, 2020 and 2019, respectively. There was a balance of $2 million due to CEG as of both December 31, 2021 and 2020. CEG Master Services Agreements The Company is a party to Master Services Agreements with CEG, or MSAs, pursuant to which CEG and certain of its affiliates or third-party service providers provide certain services to the Company, including operational and administrative services, which include human resources, information systems, external affairs, accounting, procurement and risk management services, and the Company provides certain services to CEG, including accounting, internal audit, tax and treasury services, in exchange for the payment of fees in respect of such services. The Company incurred net expenses of $4 million, $2 million and $1 million under these agreements for the years ended December 31, 2021, 2020 and 2019, respectively.

Commitments and Contingencies

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Commitments and Contingencies

Gas and Transportation Commitments

The Company has entered into contractual arrangements to procure power, fuel and associated transportation services for the Thermal Business. For the years ended December 31, 2021, 2020 and 2019, the Company purchased $40 million, $32 million, and $38 million, respectively, under such arrangements.

As of December 31, 2021, the Company's future minimum commitments under such outstanding agreements are estimated as follows:


	(In millions)
2022	$	7
2023	1
2024	—
2025	—
2026	—
Thereafter	—
Total	$	8

Contingencies

The Company's material legal proceedings are described below. The Company believes that it has valid defenses to these legal proceedings and intends to defend them vigorously. The Company records reserves for estimated losses from contingencies when information available indicates that a loss is probable and the amount of the loss, or range of loss, can be reasonably estimated. As applicable, the Company has established an adequate reserve for the matters discussed below. In addition, legal costs are expensed as incurred. Management assesses such matters based on current information and makes a judgment concerning its potential outcome, considering the nature of the claim, the amount and nature of damages sought and the probability of success. The Company is unable to predict the outcome of the legal proceedings below or reasonably estimate the scope or amount of any associated costs and potential liabilities. As additional information becomes available, management adjusts its assessment and estimates of such contingencies accordingly. Because litigation is subject to inherent uncertainties and unfavorable rulings or developments, it is possible that the ultimate resolution of the Company's liabilities and contingencies could be at amounts that are different from its currently recorded reserves and that such difference could be material.

In addition to the legal proceedings noted below, the Company and its subsidiaries are party to other litigation or legal proceedings arising in the ordinary course of business. In management's opinion, the disposition of these ordinary course matters will not materially adversely affect the Company's consolidated financial position, results of operations, or cash flows.

Nebraska Public Power District Litigation

On January 11, 2019, Nebraska Public Power District, or NPPD, sent written notice to certain of the Company's subsidiaries which own the Laredo Ridge and Elkhorn Ridge wind projects alleging an event of default under each of the PPAs between NPPD and the projects. NPPD alleges that the Company moved forward with certain transactions without obtaining the consent of NPPD. NPPD threatened to terminate the applicable PPAs by February 11, 2019 if the alleged default was not cured. The Company filed a motion for a temporary restraining order and preliminary injunction in the U.S. District Court for the District of Nebraska relating to the Laredo Ridge project, and a similar motion in the District Court of Knox County, Nebraska for the Elkhorn Ridge project, to enjoin NPPD from taking any actions related to the PPAs. On February 19, 2019, the U.S. District Court in the Laredo Ridge matter approved a stipulation between the parties to provide for an injunction preventing NPPD from terminating the PPA pending disposition of the litigation. On February 26, 2019, the Knox County District Court approved a similar stipulation relating to the Elkhorn Ridge project. On April 13, 2020, the U.S. District Court granted the wind projects' motion for summary judgment and permanently enjoined NPPD from terminating the PPAs in reliance on the alleged events of default. The U.S. District Court decision was appealed by NPPD on May 11, 2020. On August 24, 2021, the U.S. Court of Appeals for the Eighth Circuit affirmed the U.S. District Court decision granting summary judgment. On October 18, 2021, the Appeals Court denied a petition by NPPD for rehearing and a request that the case be heard by the full Appeals Court. On November 2, 2021, the Knox County District Court issued an order dismissing the case with respect to the Elkhorn Ridge project. Accordingly, the federal case and the state case are now concluded.

Buckthorn Solar Litigation

On October 8, 2019, the City of Georgetown, Texas, or Georgetown, filed a petition in the District Court of Williamson County, Texas naming Buckthorn Westex, LLC, the Company’s subsidiary that owns the Buckthorn Westex solar project, as the defendant, alleging fraud by nondisclosure and breach of contract in connection with the project and the PPA, and seeking (i) rescission and/or cancellation of the PPA, (ii) declaratory judgment that the alleged breaches constitute an event of default under the PPA entitling Georgetown to terminate, and (iii) recovery of all damages, costs of court, and attorneys’ fees. On November 15, 2019, Buckthorn Westex filed an original answer and counterclaims (i) denying Georgetown’s claims, (ii) alleging Georgetown has breached its contracts with Buckthorn Westex by failing to pay amounts due, and (iii) seeking relief in the form of (x) declaratory judgment that Georgetown’s alleged failure to pay amounts due constitute breaches of and an event of default under the PPA and that Buckthorn did not commit any events of default under the PPA, (y) recovery of costs, expenses, interest, and attorneys’ fees, and (z) such other relief to which it is entitled at law or in equity. Buckthorn Westex believes the allegations of Georgetown are meritless, and Buckthorn Westex is vigorously defending its rights under the PPA.

Leases

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Leases

Accounting for Leases

The Company evaluates each arrangement at inception to determine if it contains a lease. Substantially all of the Company’s leases are operating leases.

Lessee

The Company records its operating lease liabilities at the present value of the lease payments over the lease term at lease commencement date. Lease payments include fixed payment amounts as well as variable rate payments based on an index initially measured at lease commencement date. Variable payments, including payments based on future performance and based on index changes, are recorded as the expense is incurred. The Company determines the relevant lease term by evaluating whether renewal and termination options are reasonably certain to be exercised. The Company uses its incremental borrowing rate to calculate the present value of the lease payments, based on information available at the lease commencement date.

The Company’s leases consist of land leases for numerous operating asset locations, real estate leases and equipment leases. The terms and conditions for these leases vary by the type of underlying asset.

Lease expense for the years ended December 31, 2021, 2020 and 2019 was comprised of the following:


(In millions)	December 31, 2021		December 31, 2020		December 31, 2019
Operating lease cost - Fixed	$	27	$	19	$	13

Operating lease cost - Variable	15		9		8
Total lease cost	$	42	$	28	$	21

Operating lease information as of December 31, 2021 and 2020 was as follows:


(In millions, except term and rate)	December 31, 2021			December 31, 2020
Right-of-use assets - operating leases, net (a) (b)	$	550		$	337

Short-term lease liability - operating leases (c)	$	8		$	8
Long-term lease liability - operating leases	561			345
Total lease liabilities (a) (b)	$	569		$	353

Weighted average remaining lease term (in years)	28			25
Weighted average discount rate	3.5		%	4.3		%

Cash paid for operating leases	$	26		$	19

(a) Increases in right-of-use assets and total lease liabilities are primarily due to third-party and drop down asset acquisitions, as further described in Note 3, Acquisitions and Dispositions.

(b) Thermal Business right-of-use assets and lease liabilities were reclassified to held for sale during the fourth quarter of 2021.

(c) Short-term lease liability balances are included within the accrued expenses and other current liabilities line item of the consolidated balance sheets as of December 31, 2021 and 2020.

Minimum future rental payments of operating lease liabilities as of December 31, 2021 are as follows:


	(In millions)
2022	$	28
2023	28
2024	28
2025	28
2026	29
Thereafter	801
Total lease payments (a)	942
Less imputed interest	(352)
Total lease liability - operating leases	$	590

(a) Minimum future rental payments of the Thermal Business operating lease liabilities classified as held for sale are $1 million for each of 2022, 2023, 2024, 2025 and 2026, with $31 million due thereafter.

Oahu Solar Lease Agreements

The Oahu Solar projects are party to various land lease agreements with a wholly-owned subsidiary of CEG. The projects are leasing the land for a period of 35 years, with the ability to renew the lease for two additional five-year periods. The Company has a lease liability of $20 million as of both December 31, 2021 and 2020 and corresponding right-of-use asset of $18 million related to the lease as of both December 31, 2021 and 2020.

Rosamond Lease Agreement

The Rosamond Central project is party to a land lease agreement with a wholly-owned subsidiary of CEG. The project is leasing the land for a period of 35 years, with the ability to renew the lease for two additional five-year periods. The Company has a lease liability of $12 million as of both December 31, 2021 and 2020 and corresponding right-of-use asset of $11 million related to the lease as of both December 31, 2021 and 2020.

Lessor

The majority of the Company’s revenue is obtained through PPAs or other contractual agreements that are accounted for as leases. These leases are comprised of both fixed payments and variable payments contingent upon volumes or performance metrics. The terms of the leases are further described in Item 2 — Properties of this Form 10-K. Many of the leases have renewal options at the end of the lease term. Termination may be allowed under specific circumstances in the lease arrangements, such as under an event of default. All but one of the Company’s leases are operating leases. The remaining lease met the criteria of a sales-type lease and the impact of this sales-type lease to the consolidated financial statements was immaterial. Certain of these leases have both lease and non-lease components, and the Company allocates the transaction price to the components based on standalone selling prices.

The following amounts of energy and capacity revenue are related to the Company’s operating leases:


	Conventional Generation		Renewables		Thermal		Total
December 31, 2021	(In millions)
Energy revenue	$	9	$	716	$	2	$	727
Capacity revenue	455		—		—		455
Operating revenue	$	464	$	716	$	2	$	1,182


	Conventional Generation		Renewables		Thermal		Total
December 31, 2020	(In millions)
Energy revenue	$	10	$	554	$	2	$	566
Capacity revenue	451		—		—		451
Operating revenue	$	461	$	554	$	2	$	1,017


	Conventional Generation		Renewables		Thermal		Total
December 31, 2019	(In millions)
Energy revenue	$	5	$	509	$	2	$	516
Capacity revenue	348		—		—		348
Operating revenue	$	353	$	509	$	2	$	864

Minimum future rent payments for the remaining periods related to the Conventional segment operating leases as of December 31, 2021 were as follows:


	(In millions)
2022	$	453
2023	261
2024	106
2025	107
2026	108
Thereafter	1,390
Total lease payments	$	2,425

Property, plant and equipment, net related to the Company’s operating leases were as follows:


(In millions)	December 31, 2021		December 31, 2020
Property, plant and equipment	$	8,981	$	7,201
Accumulated depreciation	(2,827)		(1,964)
Net property, plant and equipment	$	6,154	$	5,237

Schedule I - Condensed Financial Information of Registrant

12 Months Ended

Dec. 31, 2021

Condensed Financial Information Disclosure [Abstract]

Condensed Financial Information of Registrant

Clearway Energy, Inc. (Parent)

Condensed Financial Information of Registrant

Condensed Statements of Operations


	Year ended December 31,
(In millions)	2021		2020		2019
Total operating costs and expenses	$	2	$	2	$	2
Equity in losses of consolidated subsidiaries	(63)		(52)		(101)

Interest expense	—		—		(1)
Total other expense, net	(63)		(52)		(102)
Loss Before Income Taxes	(65)		(54)		(104)
Income tax expense (benefit)	10		8		(8)
Net Loss	(75)		(62)		(96)

Less: Net loss attributable to noncontrolling interests	(126)		(87)		(85)
Net Income (Loss) Attributable to Clearway Energy, Inc.	$	51	$	25	$	(11)

Clearway Energy, Inc. (Parent)

Condensed Balance Sheets


	December 31,		December 31,
	2021		2020
ASSETS	(In millions)

Current Assets

Accounts receivable — affiliates	$	3	$	3
Note receivable — Clearway Energy Operating LLC	1		1

Other Assets
Investment in consolidated subsidiaries	3,217		2,612


Deferred income taxes	95		104
Total Assets	$	3,316	$	2,720
LIABILITIES AND STOCKHOLDERS' EQUITY




Other Liabilities
Deferred income taxes	$	11	$	—
Other non-current liabilities	5		5
Total Liabilities	$	16	$	5

Stockholders' Equity
Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued	—		—
Class A, Class B, Class C and Class D common stock, $0.01 par value; 3,000,000,000 shares authorized (Class A 500,000,000, Class B 500,000,000, Class C 1,000,000,000, Class D 1,000,000,000); 201,856,166 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,779,021 Class D 42,738,750) at December 31, 2021 and 201,635,990 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,558,845, Class D 42,738,750) at December 31, 2020	1		1
Additional paid-in capital	1,872		1,922
Accumulated deficit	(33)		(84)
Accumulated other comprehensive loss	(6)		(14)
Noncontrolling interest	1,466		890
Total Stockholders' Equity	3,300		2,715
Total Liabilities and Stockholders' Equity	$	3,316	$	2,720

Clearway Energy, Inc. (Parent)

Condensed Statements of Cash Flows


	Year ended December 31,
	2021		2020		2019
	(In millions)

Net Cash Used in Operating Activities	$	(2)	$	(3)	$	(5)
Cash Flows from Investing Activities
Investments in consolidated affiliates	2		(59)		(87)
Cash advances for notes receivable — affiliate	(2)		(3)		—
Cash received from notes receivable — affiliate	2		45		215
Net Cash Provided by (Used in) Investing Activities	2		(17)		128
Cash Flows from Financing Activities

Payments for long-term debt	—		(45)		(220)
Proceeds from the issuance of common stock	—		62		100

Cash received from Clearway Energy LLC for the payment of dividends	155		121		87
Payment of dividends	(155)		(121)		(87)
Net Cash Provided by (Used in) Financing Activities	—		17		(120)
Net (Decrease) Increase in Cash and Cash Equivalents	—		(3)		3
Cash and Cash Equivalents at Beginning of Period	—		3		—
Cash and Cash Equivalents at End of Period	$	—	$	—	$	3

Background and Basis of Presentation

Background

Clearway Energy, Inc., together with its consolidated subsidiaries, or the Company, is a publicly-traded energy infrastructure investor in and owner of modern, sustainable and long-term contracted assets across North America. The Company is indirectly owned by Global Infrastructure Partners, or GIP. GIP is an independent infrastructure fund manager that makes equity and debt investments in infrastructure assets and businesses. The Company is sponsored by GIP through GIP's portfolio company, Clearway Energy Group LLC, or CEG.

The Company is one of the largest renewable energy owners in the U.S. with over 5,000 net MW of installed wind and solar generation projects. The Company's over 9,000 net MW of assets includes approximately 2,500 net MW of environmentally-sound, highly efficient natural gas-fired generation facilities as well as the Thermal Business. Through this environmentally-sound, diversified and primarily contracted portfolio, the Company endeavors to provide its investors with stable and growing dividend income. Substantially all of the Company's generation assets are under long-term contractual arrangements for the output or capacity from these assets.

The Company consolidates the results of Clearway Energy LLC through its controlling interest, with CEG's interest shown as non-controlling interest in the financial statements. The holders of the Company's outstanding shares of Class A and Class C common stock are entitled to dividends as declared. CEG receives its distributions from Clearway Energy LLC through its ownership of Clearway Energy LLC Class B and Class D units. From time to time, CEG may also hold shares of the Company's Class A and/or Class C common stock.

As of December 31, 2021, the Company owned 57.65% of the economic interests of Clearway Energy LLC, with CEG owning 42.35% of the economic interests of Clearway Energy LLC.

Basis of Presentation

The condensed parent-only company financial statements have been prepared in accordance with Rule 12-04 of Regulation S-X, as the restricted net assets of Clearway Energy, Inc.’s subsidiaries exceed 25% of the consolidated net assets of Clearway Energy, Inc. The parent's 100% investment in its subsidiaries has been recorded using the equity basis of accounting in the accompanying condensed parent-only financial statements. These statements should be read in conjunction with the consolidated financial statements and notes thereto of Clearway Energy, Inc.

Note 2 — Long-Term Debt

For a discussion of Clearway Energy, Inc.’s financing arrangements, see Note 10, Long-term Debt, to the Company's consolidated financial statements.

Note 3 — Commitments, Contingencies and Guarantees

See Note 14, Income Taxes, and Note 16, Commitments and Contingencies, to the Company's consolidated financial statements for a detailed discussion of Clearway Energy, Inc.’s commitments and contingencies.

Note 4 — Dividends

Cash distributions paid to Clearway Energy, Inc. by its subsidiary, Clearway Energy LLC, were $155 million, $121 million and $87 million for the years ended December 31, 2021, 2020, and 2019, respectively.

Schedule II VALUATION AND QUALIFYING ACCOUNTS

12 Months Ended

Dec. 31, 2021

SEC Schedule, 12-09, Valuation and Qualifying Accounts [Abstract]

SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS

SCHEDULE II. VALUATION AND QUALIFYING ACCOUNTS

For the Years Ended December 31, 2021, 2020, and 2019


(In millions)	Balance at Beginning of Period		Charged to Costs and Expenses		Charged to Other Accounts		Balance at End of Period
Income tax valuation allowance, deducted from deferred tax assets
Year Ended December 31, 2021	$	15	$	(14)	$	—	$	1
Year Ended December 31, 2020	15		—		—		15
Year Ended December 31, 2019	15		—		—		15

Summary of Significant Accounting Policies (Policies)	12 Months Ended
Summary of Significant Accounting Policies (Policies)	Dec. 31, 2021
Accounting Policies [Abstract]
Basis of Presentation	The Company's consolidated financial statements have been prepared in accordance with GAAP. The FASB ASC is the source of authoritative GAAP to be applied by nongovernmental entities. In addition, the rules and interpretative releases of the SEC under authority of federal securities laws are also sources of authoritative GAAP for SEC registrants.
Principles of Consolidation	The consolidated financial statements include the Company's accounts and operations and those of its subsidiaries in which it has a controlling interest. All significant intercompany transactions and balances have been eliminated in consolidation. The usual condition for a controlling financial interest is ownership of a majority of the voting interests of an entity. However, a controlling financial interest may also exist through arrangements that do not involve controlling voting interests. As such, the Company applies the guidance of ASC 810, Consolidations, or ASC 810, to determine when an entity that is insufficiently capitalized or not controlled through its voting interests, referred to as a variable interest entity, or VIE, should be consolidated.
Cash and Cash Equivalents	Cash, Cash Equivalents and Restricted CashCash and cash equivalents include highly liquid investments with an original maturity of three months or less at the time of purchase.
Restricted Cash	Restricted cash consists primarily of funds held to satisfy the requirements of certain debt agreements and funds held within the Company's projects that are restricted in their use.
Trade Receivables and Allowance for Doubtful Accounts	Accounts Receivable — Trade and Allowance for Credit LossesAccounts receivable — trade are reported on the consolidated balance sheet at the invoiced amount adjusted for any write-offs and the allowance for credit losses. The allowance for credit losses is reviewed periodically based on amounts past due and significance.
Inventory	Inventory Inventory consists principally of spare parts and fuel oil. Spare parts inventory is valued at weighted average cost, unless evidence indicates that the weighted average cost will not be recovered with a normal profit in the ordinary course of business. Fuel oil inventory is valued at the lower of weighted average cost or market. The Company removes fuel inventories as they are used in the production of steam, chilled water or electricity. Spare parts inventory is removed when used for repairs, maintenance or capital projects.
Property, Plant and Equipment	Property, Plant and Equipment Property, plant and equipment are stated at cost; however impairment adjustments are recorded whenever events or changes in circumstances indicate that their carrying values may not be recoverable. Significant additions or improvements extending asset lives are capitalized as incurred, while repairs and maintenance that do not improve or extend the life of the respective asset are charged to expense as incurred. Depreciation is computed using the straight-line method over the estimated useful lives. Certain assets and their related accumulated depreciation amounts are adjusted for asset retirements and disposals with the resulting gain or loss included in cost of operations in the consolidated statements of operations. For further discussion of the Company's property, plant and equipment refer to Note 4, Property, Plant and Equipment. Construction in-progress represents cumulative construction costs, including the costs incurred for the purchase of major equipment and engineering costs and capitalized interest. Once the project achieves commercial operation, the Company reclassifies the amounts recorded in construction in progress to facilities and equipment. Development costs include project development costs, which are expensed in the preliminary stages of a project and capitalized when the project is deemed to be commercially viable. Commercial viability is determined by one or a series of actions including, among others, Board of Director approval pursuant to a formal project plan that subjects the Company to significant future obligations that can only be discharged by the use of a Company asset. When a project is available for operations, capitalized interest and capitalized project development costs are reclassified to property, plant and equipment and depreciated on a straight-line basis over the estimated useful life of the project's related assets. Capitalized costs are charged to expense if a project is abandoned or management otherwise determines the costs to be unrecoverable.
Asset Impairments	Asset Impairments Long-lived assets that are held and used are reviewed for impairment whenever events or changes in circumstances indicate their carrying values may not be recoverable. Such reviews are performed in accordance with ASC 360, Property, Plant and Equipment. An impairment loss is indicated if the total future estimated undiscounted cash flows expected from an asset are less than its carrying value. An impairment charge is measured as the excess of an asset's carrying amount over its fair value with the difference recorded in operating costs and expenses in the consolidated statements of operations. Fair values are determined by a variety of valuation methods, including appraisals, sales prices of similar assets and present value techniques. For further discussion of the Company's long-lived asset impairments, refer to Note 9, Asset Impairments. Investments accounted for by the equity method are reviewed for impairment in accordance with ASC 323, Investments-Equity Method and Joint Ventures, which requires that a loss in value of an investment that is an other-than-temporary decline should be recognized. The Company identifies and measures losses in the value of equity method investments based upon a comparison of fair value to carrying value.
Debt Issuance Costs	Debt Issuance CostsDebt issuance costs are capitalized and amortized as interest expense on a basis which approximates the effective interest method over the term of the related debt. Debt issuance costs related to the long-term debt are presented as a direct deduction from the carrying amount of the related debt. Debt issuance costs related to the senior secured revolving credit facility line of credit are recorded as a non-current asset on the consolidated balance sheet and are amortized over the term of the credit facility.
Intangible Assets	Intangible AssetsIntangible assets represent contractual rights held by the Company. The Company recognizes specifically identifiable intangible assets including power purchase agreements, leasehold rights, customer relationships, customer contracts, emission allowances, RECs and development rights when specific rights and contracts are acquired. These intangible assets are amortized primarily on a straight-line basis.
Revenue Recognition	Revenue Recognition Revenue from Contracts with Customers The Company applies the guidance in ASC 606, Revenue from Contracts with Customers, or Topic 606, when recognizing revenue associated with its contracts with customers. The Company's policies with respect to its various revenue streams are detailed below. In general, the Company applies the invoicing practical expedient to recognize revenue for the revenue streams detailed below, except in circumstances where the invoiced amount does not represent the value transferred to the customer. Thermal Revenues Steam and chilled water revenue is recognized as the Company transfers the product to the customer, based on customer usage as determined by meter readings taken at month-end. Some locations read customer meters throughout the month, and recognize estimated revenue for the period between meter read date and month-end. For thermal contracts, the Company’s performance obligation to deliver steam and chilled water is satisfied over time and revenue is recognized based on the invoiced amount. The Thermal Business subsidiaries collect and remit state and local taxes associated with sales to their customers, as required by governmental authorities. These taxes are presented on a net basis in the consolidated statements of operations. As contracts for steam and chilled water are long-term contracts, the Company has performance obligations under these contracts that have not yet been satisfied. These performance obligations have transaction prices that are both fixed and variable, and that vary based on the contract duration, customer type, inception date and other contract-specific factors. For the fixed price contracts, the Company cannot accurately estimate the amount of its unsatisfied performance obligations as it will vary based on customer usage, which will depend on factors such as weather and customer activity. On October 22, 2021, Clearway Energy Operating LLC entered into a binding agreement to sell the Thermal Business to KKR. For further details of the Thermal Disposition, refer to Note 3, Acquisitions and Dispositions. Power Purchase Agreements, or PPAs The majority of the Company’s revenues are obtained through PPAs or similar contractual agreements. Energy, capacity and, where applicable, renewable attributes, from the majority of the Company’s renewable energy assets and certain conventional energy plants is sold through long-term PPAs and tolling agreements to a single counterparty, which is often a utility or commercial customer. The majority of these PPAs are accounted for as operating leases as the Company retained its historical lease assessments and classification upon adoption of ASC 842, Leases. ASC 842 requires the minimum lease payments received to be amortized over the term of the lease and contingent rentals are recorded when the achievement of the contingency becomes probable. Judgment is required by management in determining the economic life of each generating facility, in evaluating whether certain lease provisions constitute minimum payments or represent contingent rent and other factors in determining whether a contract contains a lease and whether the lease is an operating lease or capital lease. Certain of these leases have no minimum lease payments and all of the lease revenue derived from these leases is recorded as contingent rent on an actual basis when the electricity is delivered. The contingent lease revenue recognized in the years ended December 31, 2021, 2020 and 2019 was $741 million, $589 million and $537 million, respectively. See Note 17, Leases for additional information related to the Company's PPAs accounted for as leases. Renewable Energy Credits, or RECs As stated above, renewable energy credits, or RECs, are usually sold through long-term PPAs or through REC contracts with counterparties. Revenue from the sale of self-generated RECs is recognized when the related energy is generated and simultaneously delivered even in cases where there is a certification lag as it has been deemed to be perfunctory. In a bundled contract to sell energy, capacity and/or self-generated RECs, all performance obligations are deemed to be delivered at the same time and hence, timing of recognition of revenue for all performance obligations is the same and occurs over time. In such cases, it is often unnecessary to allocate transaction price to multiple performance obligations. Contract Amortization Assets and liabilities recognized from power sales agreements assumed through acquisitions relating to the sale of electric capacity and energy in future periods arising from differences in contract and market prices are amortized to revenue over the term of each underlying contract based on actual generation and/or contracted volumes or on a straight-line basis, where applicable.
Derivative Financial Instruments	Derivative Financial Instruments The Company accounts for derivative financial instruments under ASC 815, Derivatives and Hedging, or ASC 815, which requires the Company to record all derivatives on the balance sheet at fair value unless they qualify for a NPNS exception. Changes in the fair value of non-hedge derivatives are immediately recognized in earnings. Changes in the fair value of derivatives accounted for as hedges, if elected for hedge accounting, are either: •Recognized in earnings as an offset to the changes in the fair value of the related hedged assets, liabilities and firm commitments; or •Deferred and recorded as a component of accumulated OCI until the hedged transactions occur and are recognized in earnings. The Company's primary derivative instruments are interest rate instruments used to mitigate variability in earnings due to fluctuations in interest rates, power purchase or sale contracts used to mitigate variability in earnings due to fluctuations in market prices and commodity purchase contracts used to control customer reimbursable fuel cost. On an ongoing basis, the Company qualitatively assesses the effectiveness of its derivatives that are designated as hedges for accounting purposes in order to determine that each derivative continues to be highly effective in offsetting changes in cash flows of hedged items. If necessary, the Company will perform an analysis to measure the statistical correlation between the derivative and the associated hedged item to determine the effectiveness of such a contract designated as a hedge. The Company will discontinue hedge accounting if it is determined that the hedge is no longer effective. In this case, the gain or loss previously deferred in accumulated OCI would be frozen until the underlying hedged item is delivered unless the transaction being hedged is no longer probable of occurring in which case the amount in accumulated OCI would be immediately reclassified into earnings. If the derivative instrument is terminated, the effective portion of this derivative deferred in accumulated OCI will be frozen until the underlying hedged item is delivered. Revenues and expenses on contracts that qualify for the NPNS exception are recognized when the underlying physical transaction is delivered. While these contracts are considered derivative financial instruments under ASC 815, they are not recorded at fair value, but on an accrual basis of accounting. If it is determined that a transaction designated as NPNS no longer meets the scope exception, the fair value of the related contract is recorded on the balance sheet and immediately recognized through earnings.
Concentrations of Credit Risk	Concentrations of Credit RiskFinancial instruments which potentially subject the Company to concentrations of credit risk consist primarily of accounts receivable — trade and derivative instruments, which are concentrated within entities engaged in the energy and financial industries. These industry concentrations may impact the overall exposure to credit risk, either positively or negatively, in that the customers may be similarly affected by changes in economic, industry or other conditions. In addition, many of the Company's projects have only one customer. See Item 1A, Risk Factors, Risks related to the Company's Business, for a discussion on the Company’s dependence on major customers.
Fair Value of Financial Instruments	Fair Value of Financial InstrumentsThe carrying amount of cash and cash equivalents, restricted cash, accounts receivable — trade, accounts payable — trade, account payable — affiliate and accrued expenses and other current liabilities approximate fair value because of the short-term maturity of these instruments.
Asset Retirement Obligations	Asset Retirement Obligations Asset retirement obligations, or AROs, are accounted for in accordance with ASC 410-20, Asset Retirement Obligations, or ASC 410-20. Retirement obligations associated with long-lived assets included within the scope of ASC 410-20 are those for which a legal obligation exists under enacted laws, statutes, and written or oral contracts, including obligations arising under the doctrine of promissory estoppel, and for which the timing and/or method of settlement may be conditional on a future event. ASC 410-20 requires an entity to recognize the fair value of a liability for an ARO in the period in which it is incurred and a reasonable estimate of fair value can be made. Upon initial recognition of a liability for an ARO, other than when an ARO is assumed in an acquisition of the related long-lived asset, the asset retirement cost is capitalized by increasing the carrying amount of the related long-lived asset by the same amount. Over time, the liability is accreted to its future value, while the capitalized cost is depreciated over the useful life of the related asset. The Company's AROs are primarily related to the future dismantlement of equipment on leased property and environmental obligations related to site closures and fuel storage facilities. The Company records AROs as part of other non-current liabilities on its consolidated balance sheet.
Guarantees	Guarantees The Company enters into various contracts that include indemnification and guarantee provisions as a routine part of its business activities. Examples of these contracts include operation and maintenance agreements, service agreements, commercial sales arrangements and other types of contractual agreements with vendors and other third parties as well as affiliates. These contracts generally indemnify the counterparty for tax, environmental liability, litigation and other matters as well as breaches of representations, warranties and covenants set forth in these agreements. Because many of the guarantees and indemnities the Company issues to third parties and affiliates do not limit the amount or duration of its obligations to perform under them, there exists a risk that the Company may have obligations in excess of the amounts agreed upon in the contracts mentioned above. For those guarantees and indemnities that do not limit the liability exposure, the Company may not be able to estimate what the liability would be, until a claim is made for payment or performance, due to the contingent nature of these contracts.
Investments Accounted for by the Equity Method	Investments Accounted for by the Equity MethodThe Company has investments in various energy projects accounted for by the equity method, several of which are VIEs, where the Company is not a primary beneficiary, as described in Note 5, Investments Accounted for by the Equity Method and Variable Interest Entities. The equity method of accounting is applied to these investments in affiliates because the ownership structure prevents the Company from exercising a controlling influence over the operating and financial policies of the projects. Under this method, equity in pre-tax income or losses of the investments is reflected as equity in earnings of unconsolidated affiliates. Distributions from equity method investments that represent earnings on the Company's investment are included within cash flows from operating activities and distributions from equity method investments that represent a return of the Company's investment are included within cash flows from investing activities.
Sale-Leaseback Arrangements	Sale-Leaseback Arrangements The Company is party to sale-leaseback arrangements that provide for the sale of certain assets to a third-party and simultaneous leaseback to the Company. In accordance with ASC 840-40, Sale-Leaseback Transactions, if the seller-lessee retains, through the leaseback, substantially all of the benefits and risks incident to the ownership of the property sold, the sale-leaseback transaction is accounted for as a financing arrangement. An example of this type of continuing involvement would include an option to repurchase the assets or the buyer-lessor having the option to sell the assets back to the Company. This provision is included in most of the Company’s sale-leaseback arrangements. As such, the Company accounts for these arrangements as financings. Under the financing method, the Company does not recognize as income any of the sale proceeds received from the lessor that contractually constitutes payment to acquire the assets subject to these arrangements. Instead, the sale proceeds received are accounted for as financing obligations and leaseback payments made by the Company are allocated between interest expense and a reduction to the financing obligation. Interest on the financing obligation is calculated using the Company’s incremental borrowing rate at the inception of the arrangement on the outstanding financing obligation. Judgment is required to determine the appropriate borrowing rate for the arrangement and in determining any gain or loss on the transaction that would be recorded either at the end of or over the lease term.
Stock-Based Compensation	Stock-Based CompensationThe Company accounts for its stock-based compensation in accordance with ASC 718, Compensation — Stock Compensation, or ASC 718. The fair value of the Company's relative performance stock units, or RPSUs, are estimated on the date of grant using the Monte Carlo valuation model. The Company uses the Class A and Class C common stock price on the date of grant as the fair value of the Company's restricted stock units, or RSUs. Forfeiture rates are estimated based on an analysis of the Company's historical forfeitures, employment turnover, and expected future behavior. The Company recognizes compensation expense for both graded and cliff vesting awards on a straight-line basis over the requisite service period for the entire award.
Income Taxes	Income Taxes The Company accounts for income taxes using the liability method in accordance with ASC 740, Income Taxes, or ASC 740, which requires that the Company use the asset and liability method of accounting for deferred income taxes and provide deferred income taxes for all significant temporary differences. The Company has two categories of income tax expense or benefit — current and deferred, as follows: •Current income tax expense or benefit consists solely of current taxes payable less applicable tax credits, and •Deferred income tax expense or benefit is the change in the net deferred income tax asset or liability, excluding amounts charged or credited to accumulated other comprehensive loss. The Company reports some of its revenues and expenses differently for financial statement purposes than for income tax return purposes, resulting in temporary and permanent differences between the Company's financial statements and income tax returns. The tax effects of such temporary differences are recorded as either deferred income tax assets or deferred income tax liabilities in the Company's consolidated balance sheets. The Company measures its deferred income tax assets and deferred income tax liabilities using income tax rates that are currently in effect. The Company believes it is more likely than not that the results of future operations will generate sufficient taxable income which includes the future reversal of existing taxable temporary differences to realize deferred tax assets, net of valuation allowances. In arriving at this conclusion to utilize projections of future profit before tax in its estimate of future taxable income, the Company considered the profit before tax generated in recent years. A valuation allowance is recorded to reduce the net deferred tax assets to an amount that is more-likely-than-not to be realized. The Company accounts for uncertain tax positions in accordance with ASC 740, which applies to all tax positions related to income taxes. Under ASC 740, tax benefits are recognized when it is more-likely-than-not that a tax position will be sustained upon examination by the authorities. The benefit recognized from a position that has surpassed the more-likely-than-not threshold is the largest amount of benefit that is more than 50% likely to be realized upon settlement. In accordance with ASC 740 and as discussed further in Note 14, Income Taxes, changes to existing net deferred tax assets, valuation allowances, or changes to uncertain tax benefits, are recorded to income tax expense.
Business and Asset Acquisitions	Business and Asset Acquisitions The Company accounts for its acquisitions in accordance with ASC 805, Business Combinations, or ASC 805. For third-party acquisitions, ASC 805 requires an acquirer to recognize and measure in its financial statements the identifiable assets acquired, the liabilities assumed and any noncontrolling interest in the acquiree at fair value at the acquisition date. It also recognizes and measures the goodwill acquired or a gain from a bargain purchase in the business combination and determines what information to disclose to enable users of an entity's financial statements to evaluate the nature and financial effects of the business combination. In addition, for business combinations, transaction costs are expensed as incurred. For asset acquisitions, identifiable assets acquired and liabilities assumed are recorded at acquisition date fair value. No goodwill is recognized and excess purchase price or negative goodwill are allocated to the acquired assets on a relative fair value basis. For acquisitions that relate to entities under common control, ASC 805 requires retrospective combination of the entities for all annual periods presented as if the combination has been in effect from the beginning of the earliest financial statement period presented or from the date the entities were under common control (if later than the beginning of the earliest financial statement period). The difference between the cash paid and historical value of the entities' equity is recorded as a distribution/contribution from/to CEG with the offset to noncontrolling interest.
Use of Estimates	Use of Estimates The preparation of consolidated financial statements in accordance with GAAP requires management to make estimates and assumptions. These estimates and assumptions impact the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities as of the date of the consolidated financial statements. They also impact the reported amounts of net earnings during the reporting periods. Actual results could be different from these estimates. In recording transactions and balances resulting from business operations, the Company uses estimates based on the best information available. Estimates are used for such items as plant depreciable lives, tax provisions, uncollectible accounts, AROs, acquisition accounting and legal costs incurred in connection with recorded loss contingencies, among others. In addition, estimates are used to test long-lived assets for impairment and to determine the fair value of impaired assets. As better information becomes available or actual amounts are determinable, the recorded estimates are revised. Consequently, operating results can be affected by revisions to prior accounting estimates.
Tax Equity Arrangements	Tax Equity Arrangements Certain portions of the Company's noncontrolling interests in subsidiaries represent third-party interests in the net assets under certain tax equity arrangements, which are consolidated by the Company, that have been entered into to finance the cost of solar and wind facilities eligible for certain tax credits. Additionally, certain portions of the Company's investments in unconsolidated affiliates reflect the Company's interests in tax equity arrangements, that are not consolidated by the Company, that have been entered into to finance the cost of solar energy systems, under operating leases or PPAs, that are eligible for certain tax credits. The Company has determined that the provisions in the contractual agreements of these structures represent substantive profit sharing arrangements. Further, the Company has determined that the appropriate methodology for calculating the noncontrolling interest and investment in unconsolidated affiliates that reflects the substantive profit sharing arrangements is a balance sheet approach utilizing the hypothetical liquidation at book value, or HLBV, method. Under the HLBV method, the amounts reported as noncontrolling interests and investment in unconsolidated affiliates represent the amounts the investors to the tax equity arrangements would hypothetically receive at each balance sheet date under the liquidation provisions of the contractual agreements, assuming the net assets of the funding structures were liquidated at their recorded amounts determined in accordance with GAAP. The investors' interests in the results of operations of the funding structures are determined as the difference in noncontrolling interests and investment in unconsolidated affiliates at the start and end of each reporting period, after taking into account any capital transactions between the structures and the funds' investors. The calculations utilized to apply the HLBV method include estimated calculations of taxable income or losses for each reporting period. In addition, in certain circumstances, the Company and its partners in the tax equity arrangements agree that certain tax benefits are to be utilized outside of the tax equity arrangements, which may result in differences in the amount an investor would hypothetically receive at the initial balance sheet date calculated strictly in accordance with related contractual agreements. These differences are recognized in the consolidated statement of operations using a systematic and rational method over the period during which the investor is expected to achieve its target return.
Reclassification	Reclassification Certain prior year amounts have been reclassified for comparative purposes.
Recent Accounting Developments	Recently Adopted Accounting Standards In March 2020, the FASB issued ASU No. 2020-4, Facilitation of the Effects of Reference Rate Reform on Financial Reporting. The amendments provide for optional expedients and exceptions for applying GAAP to contracts, hedging relationships and other transactions affected by reference rate reform if certain criteria are met. These amendments apply only to contracts that reference LIBOR or another reference rate expected to be discontinued because of reference rate reform, which affects certain of the Company's debt and interest rate swap agreements. The guidance is effective for all entities as of March 12, 2020 through December 31, 2022. As of December 31, 2021, the Company has applied the amendments to all its eligible contract modifications, where applicable, during the reference rate reform period. Additionally, the Company has not elected any optional expedients provided in the standard. Effective January 1, 2021, the Company adopted ASU No. 2019-12, Income Taxes (Topic 740): Simplifying the Accounting for Income Taxes. The amendments in this ASU simplify the accounting for income taxes by removing certain exceptions to the general principles in Topic 740, Income Taxes. The amendments also improve consistent application of and simplify GAAP for other areas of Topic 740 by clarifying and amending existing guidance. Adoption of the new standard did not have a material impact on the Company's consolidated financial statements.

Nature of Business (Tables)	12 Months Ended
Nature of Business (Tables)	Dec. 31, 2021
Organization, Consolidation and Presentation of Financial Statements [Abstract]
Company organization chart	The following table represents the structure of the Company as of December 31, 2021:

Summary of Significant Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2021

Accounting Policies [Abstract]

Schedule of Cash and Cash Equivalents


	Year ended December 31,
	2021		2020
	(In millions)
Cash and cash equivalents	$	179	$	268
Restricted cash	475		197
Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	654	$	465

Restrictions on Cash and Cash Equivalents


	Year ended December 31,
	2021		2020
	(In millions)
Cash and cash equivalents	$	179	$	268
Restricted cash	475		197
Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$	654	$	465

Disaggregation of Revenue

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2021, along with the reportable segment for each category:


	Year ended December 31, 2021
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	9	$	784	$	122	$	915
Capacity revenue (a)	455		2		53		510
Other revenues	—		60		32		92
Contract amortization	(23)		(118)		(3)		(144)
Mark-to-market for economic hedges	—		(87)		—		(87)
Total operating revenue	441		641		204		1,286
Less: Lease revenue	(464)		(716)		(2)		(1,182)
Less: Contract amortization	23		118		3		144
Total revenue from contracts with customers	$	—	$	43	$	205	$	248

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2020, along with the reportable segment for each category:


	Year ended December 31, 2020
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	10	$	609	$	101	$	720
Capacity revenue (a)	451		—		63		514
Other revenues	—		21		32		53
Contract amortization	(24)		(61)		(3)		(88)

Total operating revenue	437		569		193		1,199
Less: Lease revenue	(461)		(554)		(2)		(1,017)
Less: Contract amortization	24		61		3		88
Total revenue from contracts with customers	$	—	$	76	$	194	$	270

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

The following tables represent the Company’s disaggregation of revenue from contracts with customers for the year ended December 31, 2019, along with the reportable segment for each category:


	Year ended December 31, 2019
(In millions)	Conventional Generation		Renewables		Thermal		Total
Energy revenue (a)	$	5	$	545	$	120	$	670
Capacity revenue (a)	348		—		54		402
Other revenues	—		10		30		40
Contract amortization	(7)		(61)		(3)		(71)
Mark-to-market for economic hedges	—		(9)		—		(9)
Total operating revenue	346		485		201		1,032
Less: Lease revenue	(353)		(509)		(2)		(864)
Less: Contract amortization	7		61		3		71
Total revenue from contracts with customers	$	—	$	37	$	202	$	239

(a) See Note 17, Leases, for the amounts of energy and capacity revenue that relate to leases and are accounted for under ASC 842.

Schedule of Contract balances

The following table reflects the net amount of contract assets and liabilities included on the Company’s consolidated balance sheets as of December 31, 2021 and December 31, 2020:


(In millions)	December 31, 2021		December 31, 2020
Accounts receivable, net - Contracts with customers	$	44	$	57
Accounts receivable, net - Leases	100		86
Total accounts receivable, net	$	144	$	143

Schedule of Changes in Asset Retirement Obligation


(In millions)
Balance as of December 31, 2020	$	117
Thermal Business AROs reclassified to held for sale	(1)
Revisions in estimates for current obligations	2
Additions	19

Accretion — expense	9
Balance as of December 31, 2021	$	146

Acquisitions and Dispositions (Tables)

12 Months Ended

Dec. 31, 2021

Business Combination and Asset Acquisition [Abstract]

Schedule of Recognized Identified Assets Acquired and Liabilities Assumed

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 29, 2021:


(In millions)	Black Rock
Current assets (a)	$	36
Property, plant and equipment	178
Right-of-use-assets	7
Other non-current assets	2
Total assets acquired	223

Long-term debt (b)	186
Long-term lease liabilities	7
Other current and non-current liabilities	11

Total liabilities assumed (c)	204

Net assets acquired	$	19

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 17, 2021:


(In millions)	Mesquite Sky
Current assets (a)	$	46
Property, plant and equipment	377
Right-of use assets	45
Other non-current assets	7


Total assets acquired	475

Long-term debt (b)	355
Long-term lease liabilities	45
Derivative liabilities	43
Other current and non-current liabilities	39
Total liabilities assumed (c)	482
Net liabilities assumed	$	(7)

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 1, 2021:


(In millions)	Utah Solar Portfolio
Current assets	$	20
Property, plant and equipment	258
Intangible assets for power purchase agreement	302
Other intangible assets	4
Right-of use assets	163
Total assets acquired	747

Long-term lease liabilities	163
Other current and non-current liabilities	24


Total liabilities assumed	187
Equity method investment removed	(230)
Net assets acquired	$	330

The acquisition was determined to be an asset acquisition and the purchase price was allocated to the fair value of the assets acquired and liabilities assumed on the acquisition date as follows:


(In millions)	Mt. Storm

Current assets	$	3
Property, plant and equipment	108
Other non-current assets	2


Total assets acquired	113

Derivative instruments	9
Other current and non-current liabilities	4

Total liabilities assumed	13

Net assets acquired	$	100

The following is a summary of assets and liabilities obtained in connection with the acquisition as of February 3, 2021:


(In millions)	Agua Caliente
Restricted cash	$	91
Property, plant and equipment	154
Intangible asset for power purchase agreement	1,022

Other current assets	9
Total assets acquired	1,276

Long-term debt	716
Other current and non-current liabilities	5

Total liabilities assumed	721
Noncontrolling interest	273
Equity method investment removed	(80)
Net assets acquired less noncontrolling interest	$	202

The following is a summary of assets and liabilities transferred in connection with the acquisition as of January 12, 2021:


(In millions)	Rattlesnake
Current assets	$	8
Property, plant and equipment	200
Right-of-use assets	12
Total assets acquired	220

Long-term debt (a)	176
Long-term lease liabilities	12
Other current and non-current liabilities	18
Total liabilities assumed	206

Net assets acquired	$	14

The following is a summary of assets and liabilities transferred in connection with the acquisition as of November 20, 2020:


(In millions)	Langford
Current assets	$	4
Property, plant and equipment	138
Other non-current assets	15
Total assets acquired	157

Other current and non-current liabilities	17
Total liabilities assumed	17
Noncontrolling interests	119
Net assets acquired less noncontrolling interests	$	21

The following is a summary of assets and liabilities transferred in connection with the acquisition as of December 21, 2020:


(In millions)	Rosamond Central
Current assets	$	49
Property, plant and equipment	246

Other non-current assets	1
Total assets acquired	296

Long-term debt	205
Other current and non-current liabilities	11
Total liabilities assumed	216
Noncontrolling interests	52
Net assets acquired less noncontrolling interests	$	28

The following table shows the balances that were consolidated effective on December 21, 2020:


(In millions)	Mesquite Star
Current assets	$	22
Property, plant and equipment	443
Other non-current assets	31
Total assets acquired	496

Other current and non-current liabilities	87
Total liabilities assumed	87
Noncontrolling interests and redeemable noncontrolling interests	346
Net assets acquired less noncontrolling interests	$	63

The following table shows the balances that were consolidated:


	November 2, 2020		May 29, 2020
(In millions)	DGPV Holdco 1 and 2 (a)		DGPV Holdco 3 (b)
Current assets	$	29	$	32
Property, plant and equipment, net	324		331
Intangible assets, net	19		1
Other non-current assets	52		37
Total assets acquired	424		401

Long-term debt	160		206
Other current and non-current liabilities	54		84
Total liabilities assumed	214		290
Noncontrolling interests and redeemable noncontrolling interests	5		6
Net assets acquired less noncontrolling interests	$	205	$	105

(a) Includes DGPV 1, LLC, DGPV 2, LLC, CA Fund, LLC, DGPV 4 Borrower LLC and Puma Class B LLC

(b) Includes Renew Solar CS4 Fund LLC and Chestnut Fund LLC

Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2021

Property, Plant and Equipment [Abstract]

Schedule of property, plant and equipment

The Company's major classes of property, plant, and equipment were as follows:


	December 31, 2021		December 31, 2020		Depreciable Lives
	(In millions)
Facilities and equipment	$	9,747	$	9,254	2 - 40 Years
Land and improvements	320		224
Construction in progress (a)	84		62
Total property, plant and equipment	10,151		9,540
Accumulated depreciation	(2,501)		(2,323)
Net property, plant and equipment	$	7,650	$	7,217

Investments Accounted for by the Equity Method and Variable Interest Entities (Tables)

12 Months Ended

Dec. 31, 2021

Equity Method Investments and Joint Ventures [Abstract]

Equity method investments

The Company's maximum exposure to loss as of December 31, 2021 is limited to its equity investment in the unconsolidated entities, as further summarized in the table below:


Name	Economic Interest	Investment Balance
		(In millions)
Avenal	50%	$	4
Desert Sunlight	25%	239
Elkhorn Ridge	66.7%	29
GenConn (a)	50%	86
San Juan Mesa	75%	23
		$	381

(a) GenConn is a variable interest entity.

The following tables present summarized financial information for the Company's equity method investments:


	Year Ended December 31,
	2021		2020		2019
Income Statement Data:	(In millions)
GenConn
Operating revenues	$	55	$	60	$	60
Operating income	22		26		27
Net income	13		17		17
Desert Sunlight
Operating revenues	205		209		205
Operating income	146		142		123
Net income	112		88		58












Other (a) (b)
Operating revenues	49		299		318
Operating income	16		138		110
Net income	13		60		50
			As of December 31,
			2021		2020
Balance Sheet Data:			(In millions)
GenConn
Current assets			$	38	$	40
Non-current assets			328		344
Current liabilities			15		17
Non-current liabilities			178		185
Desert Sunlight
Current assets			131		132
Non-current assets			1,228		1,244
Current liabilities			64		71
Non-current liabilities			904		921

















Other (a) (b)
Current assets			26		177
Non-current assets			172		2,201
Current liabilities			24		114
Non-current liabilities			98		700

Schedule of variable interest entities

Summarized financial information for the Company's consolidated VIEs consisted of the following as of December 31, 2021:


(In millions)	Alta TE Holdco		Buckthorn Renewables, LLC		DGPV Funds(a)		Kawailoa Partnership		Langford TE Partnership LLC		Lighthouse Renewable Holdco LLC(b)		Lighthouse Renewable Holdco 2 LLC(c)
Other current and non-current assets	$	53	$	4	$	104	$	40	$	17	$	84	$	83
Property, plant and equipment	331		202		592		135		132		605		377
Intangible assets	212		—		16		—		2		—		—
Total assets	596		206		712		175		151		689		460
Current and non-current liabilities	40		10		76		103		18		150		118
Total liabilities	40		10		76		103		18		150		118
Noncontrolling interest	13		44		6		48		66		416		239
Net assets less noncontrolling interests	$	543	$	152	$	630	$	24	$	67	$	123	$	103

(a) DGPV Funds is comprised of DGPV Fund 2 LLC, Clearway & EFS Distributed Solar LLC, DGPV Fund 4 LLC, Golden Puma Fund LLC, Renew Solar CS4 Fund LLC and Chestnut Fund LLC.

(b) Lighthouse Renewable Holdco LLC consolidates Mesquite Star Tax Equity Holdco LLC and Black Rock TE Holdco LLC, which are also consolidated VIEs.


(In millions)	Oahu Solar Partnership		Pinnacle Repowering Partnership LLC		Rattlesnake TE Holdco LLC		Rosie Target Co LLC		Wildorado TE Holdco		Other(a)
Other current and non-current assets	$	47	$	12	$	30	$	26	$	21	$	16
Property, plant and equipment	172		108		194		251		225		168
Intangible assets	—		18		—		—		—		1
Total assets	219		138		224		277		246		185
Current and non-current liabilities	114		6		23		100		18		44
Total liabilities	114		6		23		100		18		44
Noncontrolling interest	31		78		98		140		121		84
Net assets less noncontrolling interests	$	74	$	54	$	103	$	37	$	107	$	57

(a) Other is comprised of Crosswind Transmission, LLC, Hardin Hilltop Wind LLC, Elbow Creek TE Holdco and Spring Canyon TE Holdco projects.

- Definition

Tabular disclosure of the significant judgments and assumptions made in determining whether a variable interest (as defined) held by the entity requires the variable interest entity (VIE) (as defined) to be consolidated and (or) disclose information about its involvement with the VIE, individually or in aggregate (as applicable); the nature of restrictions, if any, on the consolidated VIE's assets and on the settlement of its liabilities reported by an entity in its statement of financial position, including the carrying amounts of such assets and liabilities; the nature of, and changes in, the risks associated with involvement in the VIE; how involvement with the VIE affects the entity's financial position, financial performance, and cash flows; the lack of recourse if creditors (or beneficial interest holders) of the consolidated VIE have no recourse to the general credit of the primary beneficiary (if applicable); the terms of arrangements, giving consideration to both explicit arrangements and implicit variable interests, if any, that could require the entity to provide financial support to the VIE, including events or circumstances that could expose the entity to a loss; the methodology used by the entity for determining whether or not it is the primary beneficiary of the variable interest entity; the significant factors considered and judgments made in determining that the power to direct the activities of a VIE that most significantly impact the VIE's economic performance are shared (as defined); the carrying amounts and classification of assets and liabilities of the VIE included in the statement of financial position; the entity's maximum exposure to loss, if any, as a result of its involvement with the VIE, including how the maximum exposure is determined and significant sources of the entity's exposure to the VIE; a comparison of the carrying amounts of the assets and liabilities and the entity's maximum exposure to loss; information about any liquidity arrangements, guarantees, and (or) other commitments by third parties that may affect the fair value or risk of the entity's variable interest in the VIE; whether or not the entity has provided financial support or other support (explicitly or implicitly) to the VIE that it was not previously contractually required to provide or whether the entity intends to provide that support, including the type and amount of the support and the primary reasons for providing the support; and supplemental information the entity determines necessary to provide.

+ References + Details

Fair Value of Financial Instruments (Tables)

12 Months Ended

Dec. 31, 2021

Fair Value Disclosures [Abstract]

Estimated carrying amounts and fair values

The carrying amounts and estimated fair values of the Company’s recorded financial instruments not carried at fair market value or that do not approximate fair value are as follows:


	As of December 31, 2021				As of December 31, 2020
	Carrying Amount		Fair Value		Carrying Amount		Fair Value
	(In millions)


Liabilities:
Long-term debt, including current portion (a)	$	7,782	$	7,997	$	7,048	$	7,020

(a) Excludes net debt issuance costs, which are recorded as a reduction to long-term debt on the Company's consolidated balance sheets.

Level within fair value hierarchy

The following table presents the level within the fair value hierarchy for long-term debt, including current portion as of December 31, 2021 and 2020:


	As of December 31, 2021				As of December 31, 2020
	Level 2		Level 3		Level 2		Level 3
	(In millions)
Long-term debt, including current portion	$	2,159	$	5,838	$	1,905	$	5,115

Assets and liabilities measured and recorded at fair value

The following table presents assets and liabilities measured and recorded at fair value on the Company's consolidated balance sheets on a recurring basis and their level within the fair value hierarchy:


	As of December 31, 2021				As of December 31, 2020
	Fair Value		Fair Value (a)		Fair Value		Fair Value (a)
(In millions)	Level 2		Level 3		Level 2		Level 3
Derivative assets

Interest rate contracts	$	6	$	—	$	1	$	—
Other financial instruments (b)	—		25		—		29
Total assets	$	6	$	25	$	1	$	29
Derivative liabilities
Commodity contracts	$	—	$	179	$	—	$	44
Interest rate contracts	63		—		129		—
Total liabilities	$	63	$	179	$	129	$	44

(a) There were no derivative assets classified as Level 1 or Level 3 and no liabilities classified as Level 1 as of December 31, 2021 and December 31, 2020.

(b) SREC contract acquired on November 2, 2020.

The following table reconciles the beginning and ending balances for instruments that are recognized at fair value in the consolidated financial statements using significant unobservable inputs:


	Year ended December 31,
		2021		2020
(In millions)	Fair Value Measurement Using Significant Unobservable Inputs (Level 3)
Beginning balance		$	(15)	$	(9)
Total losses for the period included in earnings		(93)		—
Contracts acquired		(52)		(6)
Settlements		6		—
Ending balance		$	(154)	$	(15)
Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31,		$	(93)	$	1

The following table quantifies the significant unobservable inputs used in developing the fair value of the Company's Level 3 positions as of December 31, 2021:

December 31, 2021

Fair Value

Input/Range

Assets

Liabilities

Valuation Technique

Significant Unobservable Input

Low

High

Weighted Average

(In millions)

Commodity Contracts

—

(179)

Discounted Cash Flow

Forward Market Price (per MWh)

13.93

56.06

27.46

Other Financial Instruments

—

Discounted Cash Flow

Forecast annual generation levels of certain DG solar facilities

80,872 MWh

129,913 MWh

124,783 MWh

The following table provides the impact on the fair value measurements to increases/(decreases) in significant unobservable inputs as of December 31, 2021:


Significant Observable Input	Position	Change In Input	Impact on Fair Value Measurement
Forward Market Price Power	Buy	Increase/(Decrease)	Higher/(Lower)
Forward Market Price Power	Sell	Increase/(Decrease)	Lower/(Higher)
Forecast Generation Levels	Sell	Increase/(Decrease)	Higher/(Lower)

Accounting for Derivative Instruments and Hedging Activities (Tables)

12 Months Ended

Dec. 31, 2021

Derivative Instruments and Hedging Activities Disclosure [Abstract]

Net notional volume buy/(sell) of NRG Yield's open derivative transactions broken out by commodity

The following table summarizes the net notional volume buy/(sell) of the Company's open derivative transactions broken out by commodity as of December 31, 2021 and 2020:


		Total Volume
		December 31, 2021		December 31, 2020
Commodity	Units	(In millions)
Natural Gas	MMBtu	2		1
Power	MWh	(17)		(8)
Interest	Dollars	$	1,326	$	1,600

Fair value within the derivative instrument valuation on the balance sheets

The following table summarizes the fair value within the derivative instrument valuation on the consolidated balance sheets:


	Fair Value
	Derivative Assets				Derivative Liabilities
	December 31, 2021		December 31, 2020		December 31, 2021		December 31, 2020
	(In millions)
Derivatives Designated as Cash Flow Hedges:
Interest rate contracts current	$	—	$	—	$	5	$	8
Interest rate contracts long-term	2		—		3		15
Total Derivatives Designated as Cash Flow Hedges	$	2	$	—	$	8	$	23
Derivatives Not Designated as Cash Flow Hedges:
Interest rate contracts current	$	—	$	—	$	17	$	25
Interest rate contracts long-term	4		1		38		81
Commodity contracts current	—		—		24		5
Commodity contracts long-term	—		—		155		39
Total Derivatives Not Designated as Cash Flow Hedges	$	4	$	1	$	234	$	150
Total Derivatives	$	6	$	1	$	242	$	173

Offsetting of derivatives by counterparty master agreement level and collateral received or paid

The following tables summarize the offsetting of derivatives by counterparty:


	Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2021	Gross Amounts of Recognized Assets/Liabilities		Derivative Instruments		Net Amount
Commodity contracts	(In millions)

Derivative liabilities	$	(179)	$	—	$	(179)
Total commodity contracts	$	(179)	$	—	$	(179)
Interest rate contracts
Derivative assets	$	6	$	(5)	$	1
Derivative liabilities	(63)		5		(58)
Total interest rate contracts	$	(57)	$	—	$	(57)
Total derivative instruments	$	(236)	$	—	$	(236)


	Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2020	Gross Amounts of Recognized Assets/Liabilities		Derivative Instruments		Net Amount
Commodity contracts	(In millions)

Derivative liabilities	$	(44)	$	—	$	(44)
Total commodity contracts	$	(44)	$	—	$	(44)
Interest rate contracts
Derivative assets	$	1	$	—	$	1
Derivative liabilities	(129)		—		(129)
Total interest rate contracts	$	(128)	$	—	$	(128)
Total derivative instruments	$	(172)	$	—	$	(172)

Effects of NRG Yield's accumulated OCI balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax

The following table summarizes the effects on the Company’s accumulated OCL balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax:


	Year ended December 31,
	2021		2020		2019
	(In millions)
Accumulated OCL beginning balance	$	(30)	$	(31)	$	(38)
Reclassified from accumulated OCL to income due to realization of previously deferred amounts	8		8		16
Mark-to-market of cash flow hedge accounting contracts	11		(7)		(9)
Accumulated OCL ending balance, net of income tax benefit of $2, $5 and $6, respectively	(11)		(30)		(31)
Accumulated OCL attributable to noncontrolling interests	(5)		(16)		(16)
Accumulated OCL attributable to Clearway Energy, Inc.	$	(6)	$	(14)	$	(15)
Losses expected to be realized from OCL during the next 12 months, net of income tax benefit of $2	$	(7)

Schedule of gains and losses related to Company's derivatives

ains and losses related to the Company's derivatives are recorded in the consolidated statements of operations as follows:


	Year ended December 31,
	2021		2020		2019
	(In millions)
Interest Rate Contracts (Mark-to-market interest expense)	$	53	$	(38)	$	(65)
Commodity Contracts (Mark-to-market for economic hedging activities) (a)	(83)		(4)		(9)

(a) Relates to long-term commodity contracts at Elbow Creek Wind Project LLC, or Elbow Creek, Mesquite Star, Mt. Storm and Mesquite Sky and gains or losses are recognized in operating revenues.

Intangible Assets (Tables)

12 Months Ended

Dec. 31, 2021

Goodwill and Intangible Assets Disclosure [Abstract]

Summary of the components of the Company's intangible assets subject to amortization

The following tables summarize the components of intangible assets subject to amortization:


Year ended December 31, 2021	PPAs		Leasehold Rights		Customer Relationships		Customer Contracts		Emission Allowances		Other		Total
(In millions)
January 1, 2021	$	1,661	$	86	$	66	$	15	$	17	$	12	$	1,857


Acquisitions (a)	1,324		—		—		—		—		4		1,328
Reclassified to held for sale (b)	—		—		(66)		(15)		—		—		(81)
December 31, 2021	2,985		86		—		—		17		16		3,104
Less accumulated amortization	(566)		(30)		—		—		(3)		(6)		(605)
Net carrying amount	$	2,419	$	56	$	—	$	—	$	14	$	10	$	2,499

(a) The weighted average life of acquired intangibles was 17 years for PPAs, 15 years for RECs and 15 years for favorable leases.

(b) Thermal Business intangible assets were reclassified to held for sale during the fourth quarter of 2021.


Year ended December 31, 2020	PPAs		Leasehold Rights		Customer Relationships		Customer Contracts		Emission Allowances		Other		Total
(In millions)
January 1, 2020	$	1,630	$	86	$	66	$	15	$	17	$	8	$	1,822
Consolidation of DGPV Holdco Entities	23		—		—		—		—		—		23
Other	8		—		—		—		—		4		12
December 31, 2020	1,661		86		66		15		17		12		1,857
Less accumulated amortization	(431)		(26)		(11)		(11)		(3)		(5)		(487)
Net carrying amount	$	1,230	$	60	$	55	$	4	$	14	$	7	$	1,370

Schedule future amortization expense for intangibles

The Company estimates the future amortization expense for its intangibles for the next five years as follows:


	(In millions)
2022	$	158
2023	155
2024	153
2025	153
2026	153

Long-term Debt (Tables)

12 Months Ended

Dec. 31, 2021

Debt Disclosure [Abstract]

Schedule of long-term debt

The Company's borrowings, including short-term and long-term portions consisted of the following:


	December 31, 2021		December 31, 2020		Interest rate % (a)	Letters of Credit Outstanding at December 31, 2021
	(In millions, except rates)
2025 Senior Notes	$	—	$	600	5.750
2026 Senior Notes	—		350		5.000
2028 Senior Notes	850		850		4.750
2031 Senior Notes	925		—		3.750
2032 Senior Notes	350		—		3.750
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, due 2023 (b)	245		—		1.750	$	83
Bridge Loan, due 2022 (c)	335		—		S+1.000
Project-level debt:
Agua Caliente Solar LLC, due 2037	684		—		2.395 - 3.633	45
Alta Wind Asset Management LLC, due 2031	13		14		L+2.625	—
Alta Wind I-V lease financing arrangements, due 2034 and 2035	756		800		5.696 - 7.015	34
Alta Wind Realty Investments LLC, due 2031	24		25		7.000	—
Borrego, due 2024 and 2038	54		57		Various	—
Buckthorn Solar, due 2025	123		126		L+1.750	21
Carlsbad Energy Holdings LLC, due 2027	136		156		L+1.625	62
Carlsbad Energy Holdings LLC, due 2038	407		407		4.120	—
Carlsbad Holdco, due 2038	205		210		4.210	6
CVSR, due 2037	652		675		2.339 -3.775	—
CVSR Holdco Notes, due 2037	169		176		4.680	13
DG-CS Master Borrower LLC, due 2040	441		467		3.510	30
Duquesne, due 2059 (d)	—		95		4.620	—
El Segundo Energy Center, due 2023	193		250		L+1.875 - L+2.500	138
Energy Center Minneapolis Series D, E, F, G, H Notes, due 2025-2037 (d)	—		327		Various	—
Kawailoa Solar Portfolio LLC, due 2026	78		81		L+1.375	14
Laredo Ridge, due 2028	72		78		L+2.125	3
Marsh Landing, due 2023	84		146		L+2.375	46
NIMH Solar, due 2024	176		191		L+2.000	10
Oahu Solar Holdings LLC, due 2026	86		89		L+1.375	10

Rosie Class B LLC, due 2027	78		80		L+1.750	17
Tapestry, due 2031	85		143		L+1.375	12
Utah Solar Holdings, due 2036	273		290		3.590	10

Walnut Creek, due 2023	74		126		L+1.750	116
WCEP Holdings, LLC, due 2023	30		35		L+3.000	—
Other	180		199		Various	201
Subtotal project-level debt	5,073		5,243
Total debt	7,778		7,043
Less current maturities	(772)		(384)
Less net debt issuance costs	(71)		(79)
Add premiums (e)	4		5
Total long-term debt	$	6,939	$	6,585

(b) Applicable rate is determined by the borrower leverage ratio, as defined in the credit agreement

(d) Thermal Business long-term debt reclassified to held for sale in the fourth quarter of 2021

(e) Premiums relate to the 2028 Senior Notes

Summary of swaps related to the Company's project level debt

The following table summarizes the swaps, some of which are forward starting as indicated, related to the Company's project level debt as of December 31, 2021:


	% of Principal		Fixed Interest Rate		Floating Interest Rate	Notional Amount at December 31, 2021 (In millions)		Effective Date	Maturity Date
Avra Valley	88	%	2.33	%	3-Month LIBOR	$	35	November 30, 2012	November 30, 2030
Alta Wind Asset Management	100	%	2.47	%	3-Month LIBOR	13		May 22, 2013	May 15, 2031
Borrego	100	%	0.476	%	3-Month LIBOR	10		June 30, 2020	December 31, 2024
Buckthorn Solar	81	%	Various		3-Month LIBOR	100		February 28, 2018	December 31, 2041
Carlsbad	100	%	Various		3-Month LIBOR	136		Various	September 30, 2027
El Segundo	100	%	Various		3-Month LIBOR	193		Various	Various
Kansas South	75	%	2.368	%	6-Month LIBOR	15		June 28, 2013	December 31, 2030
Kawailoa Solar	94	%	Various		3-Month LIBOR	74		November 30, 2019	October 31, 2040
Laredo Ridge	100	%	Various		3-Month LIBOR	72		December 17, 2014	December 31, 2028
Marsh Landing	100	%	Various		3-Month LIBOR	84		June 28, 2013	June 30, 2023
NIMH Solar LLC	100	%	Various		3-Month LIBOR	176		September 30, 2020	Various
Oahu Solar	96	%	Various		3-Month LIBOR	83		November 30, 2019	October 31, 2040
Rosie Class B	95	%	1.446	%	3-Month LIBOR	74		December 31, 2020	Various
South Trent	90	%	3.847	%	3-Month LIBOR	31		June 14, 2019	June 30, 2028
Tapestry	100	%	Various		3-Month LIBOR	85		Various	Various

Viento Funding II	100	%	3.03	%	6-Month LIBOR	29		Various	Various
Viento Funding II	100	%	4.985	%	6-Month LIBOR	21		July 11, 2023	June 30, 2028
Walnut Creek Energy	90	%	3.543	%	3-Month LIBOR	66		June 28, 2013	May 31, 2023
WCEP Holdings	97	%	4.003	%	3-Month LIBOR	29		June 28, 2013	May 31, 2023
Total						$	1,326

Schedule of annual payments based on the maturities of NRG Yield's debt

Annual payments based on the maturities of the Company's debt, for the years ending after December 31, 2021, are as follows:


	(In millions)
2022	$	772
2023	709
2024	392
2025 (a)	369
2026 (a)	422
Thereafter (a)	5,537
Total	$	8,201

- Definition

Tabular disclosure of pertinent information about a derivative or group of derivatives on a disaggregated basis, such as for individual instruments, or small groups of similar instruments. May include a combination of the type of instrument, risks being hedged, notional amount, hedge designation, related hedged item, inception date, maturity date, or other relevant item.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624163-113959

Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1B
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5580258-113959

Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41620-113959

Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1A
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579245-113959

Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41638-113959

Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 8
-URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41678-113959

Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 5
-URI http://asc.fasb.org/extlink&oid=125515794&loc=d3e41641-113959

Reference 8: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 4C
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5624171-113959

Reference 9: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 10
-Section 50
-Paragraph 1
-URI http://asc.fasb.org/extlink&oid=125515794&loc=SL5579240-113959

+ Details

Earnings (Loss) Per Share (Tables)

12 Months Ended

Dec. 31, 2021

Earnings Per Share [Abstract]

Reconciliation of the Company's basic (loss) earnings per share to diluted earnings per share

The reconciliation of the Company's basic and diluted earnings (loss) per share is shown in the following table:


	Year Ended December 31,
	2021				2020				2019
(In millions, except per share data) (a)	Common Class A		Common Class C		Common Class A		Common Class C		Common Class A		Common Class C
Basic and diluted earnings (loss) per share attributable to Clearway Energy, Inc. common stockholders
Net income (loss) attributable to Clearway Energy, Inc.	$	15	$	36	$	7	$	18	$	(4)	$	(7)
Weighted average number of common shares outstanding — basic	35		82		35		80		35		74
Weighted average number of common shares outstanding — diluted	35		82		35		81		35		74
Earnings (loss) per weighted average common share — basic and diluted	$	0.44	$	0.44	$	0.22	$	0.22	$	(0.10)	$	(0.10)

(a) Net income (loss) attributable to Clearway Energy, Inc. and basic and diluted earnings (loss) per share might not recalculate due to presenting values in millions rather than whole dollars.

Stockholders' Equity (Tables)

12 Months Ended

Dec. 31, 2021

Stockholders' Equity Attributable to Parent [Abstract]

Schedule of shares sold under the ATM programs

The following table summarizes Class C common stock shares sold under the ATM Programs during the year ended December 31, 2020:


	Number of shares sold	Gross Proceeds from the sale of shares(a) (in millions)
2020 ATM Program	940,790	$	24
2016 ATM Program	1,749,665	39
Total Class C common stock sold during the year ended December 31, 2020	2,690,455	$	63

(a) The Company incurred commission fees of $0.6 million during the year ended December 31, 2020.

Schedule of dividends paid

The following table lists the dividends paid on the Company's Class A and Class C common stock during the year ended December 31, 2021:


	Fourth Quarter 2021		Third Quarter 2021		Second Quarter 2021		First Quarter 2021
Dividends per Class A share	$	0.3400	$	0.3345	$	0.3290	$	0.3240
Dividends per Class C share	0.3400		0.3345		0.3290		0.3240

Schedule of distributions paid

The following table lists the distributions paid to CEG during the year ended December 31, 2021 on Clearway Energy LLC's Class B and D units:


	Fourth Quarter 2021		Third Quarter 2021		Second Quarter 2021		First Quarter 2021
Distributions per Class B unit	$	0.3400	$	0.3345	$	0.3290	$	0.3240
Distributions per Class D unit	0.3400		0.3345		0.3290		0.3240

Segment Reporting (Tables)

12 Months Ended

Dec. 31, 2021

Segment Reporting [Abstract]

Customers accounting for more than 10% of revenue

The Company generated more than 10% of its revenues from the following customers for the years ended December 31, 2021, 2020 and 2019:


	2021		2020		2019
Customer	Conventional	Renewables	Conventional	Renewables	Conventional	Renewables
SCE	17%	16%	18%	16%	21%	19%
PG&E	10%	13%	10%	8%	12%	10%

Segment reporting information


	Year ended December 31, 2021
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	441	$	641	$	204	$	—	$	1,286
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	90		229		134		(2)		451
Depreciation, amortization and accretion	132		354		23		—		509
Impairment losses	—		6		—		—		6
General and administrative	—		—		4		36		40
Transaction and integration costs	—		—		—		7		7
Development costs	—		—		4		2		6
Operating income (loss)	219		52		39		(43)		267
Equity in earnings of unconsolidated affiliates	6		26		—		—		32


Other income, net	—		2		1		—		3
Loss on debt extinguishment	—		(1)		—		(52)		(53)
Interest expense, net	(53)		(142)		(18)		(99)		(312)
Income (loss) before income taxes	172		(63)		22		(194)		(63)
Income tax expense	—		2		—		10		12
Net Income (Loss)	172		(65)		22		(204)		(75)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	172	$	109	$	22	$	(252)	$	51
Balance Sheet
Equity investment in affiliates	$	86	$	295	$	—	$	—	$	381
Capital expenditures (b)	12		77		29		1		119
Total Assets (c)	$	2,442	$	9,603	$	631	$	137	12,813

(a) Includes eliminations

(b) Includes accruals


	Year ended December 31, 2020
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	437	$	569	$	193	$	—	$	1,199
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	90		147		131		(2)		366
Depreciation, amortization and accretion	132		264		32		—		428
Impairment losses	—		24		—		—		24
General and administrative	—		—		3		31		34
Transaction and integration costs	—		—		—		9		9
Development costs	—		—		5		—		5
Operating income (loss)	215		134		22		(38)		333
Equity in earnings (losses) of unconsolidated affiliates	8		(1)		—		—		7
Impairment loss on investment	—		(8)		—		—		(8)
Gain on sale of unconsolidated affiliates	—		—		—		49		49
Other income, net	1		3		—		—		4
Loss on debt extinguishment	—		(21)		—		(3)		(24)
Interest expense, net	(84)		(216)		(19)		(96)		(415)
Income (loss) before income taxes	140		(109)		3		(88)		(54)
Income tax expense	—		—		—		8		8
Net Income (Loss)	140		(109)		3		(96)		(62)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	140	$	3	$	3	$	(121)	$	25
Balance Sheet
Equity investments in affiliates	$	90	$	651	$	—	$	—	$	741
Capital expenditures (b)	12		44		50		—		106
Total Assets	$	2,575	$	7,157	$	627	$	233	$	10,592

(a) Includes eliminations

(b) Includes accruals


	Year ended December 31, 2019
(In millions)	Conventional Generation		Renewables		Thermal		Corporate (a)		Total
Operating revenues	$	346	$	485	$	201	$	—	$	1,032
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below	60		143		134		—		337
Depreciation, amortization and accretion	103		271		27		—		401
Impairment losses	—		14		19		—		33
General and administrative	—		1		3		25		29
Transaction and integration costs	—		—		—		3		3
Development costs	—		—		5		—		5
Operating income (loss)	183		56		13		(28)		224
Equity in earnings of unconsolidated affiliates	9		74		—		—		83
Other income, net	2		6		—		1		9
Loss on debt extinguishment	—		(1)		—		(15)		(16)
Interest expense, net	(59)		(239)		(18)		(88)		(404)
Income (loss) before income taxes	135		(104)		(5)		(130)		(104)
Income tax benefit	—		—		—		(8)		(8)
Net Income (Loss)	135		(104)		(5)		(122)		(96)

Net Income (Loss) Attributable to Clearway Energy, Inc.	$	135	$	(33)	$	(5)	$	(108)	$	(11)

(a) Includes eliminations

Income Taxes (Tables)

12 Months Ended

Dec. 31, 2021

Income Tax Disclosure [Abstract]

Income tax provision from continuing operations

The income tax provision consisted of the following amounts:


	Year Ended December 31,
	2021		2020		2019
	(In millions)




Deferred
U.S. Federal	$	(2)	$	7	$	(4)
State	14		1		(4)
Total — deferred	12		8		(8)
Total income tax expense (benefit)	$	12	$	8	$	(8)

Reconciliation of the U.S. federal statutory rate to the Company's effective rate

A reconciliation of the U.S. federal statutory rate of 21% to the Company's effective rate is as follows:


	Year Ended December 31,
	2021			2020			2019
	(In millions, except percentages)
Income Before Income Taxes	$	(63)		$	(54)		$	(104)
Tax at 21%	(13)			(11)			(22)
State taxes, net of federal benefit	(4)			(4)			(7)


Impact of non-taxable equity earnings	34			24			24
Valuation allowance	(14)			—			—
Investment tax credits	—			—			(1)
Production tax credits, including prior year true-up	(1)			(1)			(1)

Rate Change	(2)			2			—
Partnership state basis	8			—			—
State taxes assessed at subsidiaries	2			—			—
Other	2			(2)			(1)
Income tax expense (benefit)	$	12		$	8		$	(8)
Effective income tax rate	(19.0)		%	(14.8)		%	7.7		%

Company's deferred tax assets and liabilities

The temporary differences, which gave rise to the Company's deferred tax assets, consisted of the following:


	As of December 31,
	2021		2020
	(In millions)
Deferred tax liabilities:
Investment in projects	$	267	$	226
Total deferred tax liabilities	267		226
Deferred tax assets:


Interest expense disallowance carryforward - Investment in Projects	7		11
Production tax credits	10		9
Investment tax credits	5		5
U.S. Federal net operating loss carryforwards	277		260
Capital loss carryforwards	—		12
State net operating loss carryforwards	51		48
Total deferred tax assets	350		345
Valuation allowance	(1)		(15)
Total deferred tax assets, net of valuation allowance	349		330
Net deferred noncurrent tax asset	$	82	$	104

Commitments and Contingencies (Tables)

12 Months Ended

Dec. 31, 2021

Commitments and Contingencies Disclosure [Abstract]

Long-term purchase commitment

As of December 31, 2021, the Company's future minimum commitments under such outstanding agreements are estimated as follows:


	(In millions)
2022	$	7
2023	1
2024	—
2025	—
2026	—
Thereafter	—
Total	$	8

Leases (Tables)

12 Months Ended

Dec. 31, 2021

Leases [Abstract]

Schedule of Lease Information and Expense

Lease expense for the years ended December 31, 2021, 2020 and 2019 was comprised of the following:


(In millions)	December 31, 2021		December 31, 2020		December 31, 2019
Operating lease cost - Fixed	$	27	$	19	$	13

Operating lease cost - Variable	15		9		8
Total lease cost	$	42	$	28	$	21

Operating lease information as of December 31, 2021 and 2020 was as follows:


(In millions, except term and rate)	December 31, 2021			December 31, 2020
Right-of-use assets - operating leases, net (a) (b)	$	550		$	337

Short-term lease liability - operating leases (c)	$	8		$	8
Long-term lease liability - operating leases	561			345
Total lease liabilities (a) (b)	$	569		$	353

Weighted average remaining lease term (in years)	28			25
Weighted average discount rate	3.5		%	4.3		%

Cash paid for operating leases	$	26		$	19

(a) Increases in right-of-use assets and total lease liabilities are primarily due to third-party and drop down asset acquisitions, as further described in Note 3, Acquisitions and Dispositions.

(b) Thermal Business right-of-use assets and lease liabilities were reclassified to held for sale during the fourth quarter of 2021.

(c) Short-term lease liability balances are included within the accrued expenses and other current liabilities line item of the consolidated balance sheets as of December 31, 2021 and 2020.

Maturities of Operating Lease Liabilities

Minimum future rental payments of operating lease liabilities as of December 31, 2021 are as follows:


	(In millions)
2022	$	28
2023	28
2024	28
2025	28
2026	29
Thereafter	801
Total lease payments (a)	942
Less imputed interest	(352)
Total lease liability - operating leases	$	590

Energy and Capacity Revenue

The following amounts of energy and capacity revenue are related to the Company’s operating leases:


	Conventional Generation		Renewables		Thermal		Total
December 31, 2021	(In millions)
Energy revenue	$	9	$	716	$	2	$	727
Capacity revenue	455		—		—		455
Operating revenue	$	464	$	716	$	2	$	1,182


	Conventional Generation		Renewables		Thermal		Total
December 31, 2020	(In millions)
Energy revenue	$	10	$	554	$	2	$	566
Capacity revenue	451		—		—		451
Operating revenue	$	461	$	554	$	2	$	1,017


	Conventional Generation		Renewables		Thermal		Total
December 31, 2019	(In millions)
Energy revenue	$	5	$	509	$	2	$	516
Capacity revenue	348		—		—		348
Operating revenue	$	353	$	509	$	2	$	864

Minimum Future Rent Payments Under the Operating Leases

Minimum future rent payments for the remaining periods related to the Conventional segment operating leases as of December 31, 2021 were as follows:


	(In millions)
2022	$	453
2023	261
2024	106
2025	107
2026	108
Thereafter	1,390
Total lease payments	$	2,425

Property, Plant, and Equipment Net

Property, plant and equipment, net related to the Company’s operating leases were as follows:


(In millions)	December 31, 2021		December 31, 2020
Property, plant and equipment	$	8,981	$	7,201
Accumulated depreciation	(2,827)		(1,964)
Net property, plant and equipment	$	6,154	$	5,237

Nature of Business - Narrative (Details) $ in Billions	12 Months Ended
Nature of Business - Narrative (Details) $ in Billions	Dec. 31, 2021 MW	Oct. 22, 2021 USD ($)	Nov. 20, 2020 MW
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Power generation capacity, megawatts	9,000		160
Discontinued Operations, Disposed of by Sale \| Thermal
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Proceeds from sale of business \| $		$ 1.9
Clearway Energy LLC \| Clearway Energy, Inc.
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	57.65%
Clearway Energy LLC \| Clearway Energy LLC
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	42.35%
Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Power generation capacity, megawatts	5,000
Generational Facilities and District Energy Systems
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Power generation capacity, megawatts	2,500
GIP \| Clearway Energy LLC
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	57.65%
Limited liability company (LLC) or limited partnership (LP), members or limited partners, voting interest	45.07%
Shareholders \| Clearway Energy LLC
Collaborative Arrangement and Arrangement Other than Collaborative [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	42.35%
Limited liability company (LLC) or limited partnership (LP), members or limited partners, voting interest	54.93%

Summary of Significant Accounting Policies - Narrative (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Apr. 30, 2021
Summary of Significant Accounting Policies [Line Items]
Cash and cash equivalents held at project subsidiaries	$ 146	$ 149
Restricted cash	475	197
Contingent rental income	741	589	$ 537
General and administrative	$ 4	3	4
Income tax benefit threshold	50.00%
Prepaid Expenses and Other Current Assets \| State and Local Jurisdiction
Summary of Significant Accounting Policies [Line Items]
Refundable tax credit receivable				$ 49
PPA, refundable tax credit, aggregate amount utilized	$ 20
Operating Segments
Summary of Significant Accounting Policies [Line Items]
Contingent rental income	1,182	1,017	864
Operating Segments \| Conventional Generation
Summary of Significant Accounting Policies [Line Items]
Contingent rental income	464	461	353
Operating Segments \| Renewables
Summary of Significant Accounting Policies [Line Items]
Contingent rental income	716	554	509
Operating Segments \| Thermal
Summary of Significant Accounting Policies [Line Items]
Contingent rental income	2	$ 2	$ 2
Long-Term Debt, Current
Summary of Significant Accounting Policies [Line Items]
Restricted cash	34
Debt Service Obligations
Summary of Significant Accounting Policies [Line Items]
Restricted cash	131
Cash Distribution
Summary of Significant Accounting Policies [Line Items]
Restricted cash	64
Operating Funds
Summary of Significant Accounting Policies [Line Items]
Restricted cash	$ 246

Summary of Significant Accounting Policies - Cash and Cash Equivalents, and Restricted Cash (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Accounting Policies [Abstract]
Cash and cash equivalents	$ 179	$ 268
Restricted cash	475	197
Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows	$ 0	$ 0	$ 3	$ 0

Summary of Significant Accounting Policies - Disaggregated Revenues (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 1,286	$ 1,199	$ 1,032
Mark-to-market for economic hedges	87
Less: Lease revenue	(741)	(589)	(537)
Energy revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(727)	(566)	(516)
Capacity revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(455)	(451)	(348)
Conventional Generation \| Energy revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(9)	(10)	(5)
Conventional Generation \| Capacity revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(455)	(451)	(348)
Renewables \| Energy revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(716)	(554)	(509)
Renewables \| Capacity revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	0	0	0
Thermal \| Energy revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	(2)	(2)	(2)
Thermal \| Capacity revenue
Disaggregation of Revenue [Line Items]
Less: Lease revenue	0	0	0
Operating Segments
Disaggregation of Revenue [Line Items]
Total operating revenue	1,286	1,199	1,032
Less: Contract amortization	(144)	(88)	(71)
Mark-to-market for economic hedges			(9)
Less: Lease revenue	(1,182)	(1,017)	(864)
Total revenue from contracts with customers	248	270	239
Operating Segments \| Energy revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	915	720	670
Operating Segments \| Capacity revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	510	514	402
Operating Segments \| Other revenues
Disaggregation of Revenue [Line Items]
Total operating revenue	92	53	40
Operating Segments \| Conventional Generation
Disaggregation of Revenue [Line Items]
Total operating revenue	441	437	346
Less: Contract amortization	(23)	(24)	(7)
Mark-to-market for economic hedges	0		0
Less: Lease revenue	(464)	(461)	(353)
Total revenue from contracts with customers	0	0	0
Operating Segments \| Conventional Generation \| Energy revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	9	10	5
Operating Segments \| Conventional Generation \| Capacity revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	455	451	348
Operating Segments \| Conventional Generation \| Other revenues
Disaggregation of Revenue [Line Items]
Total operating revenue	0	0	0
Operating Segments \| Renewables
Disaggregation of Revenue [Line Items]
Total operating revenue	641	569	485
Less: Contract amortization	(118)	(61)	(61)
Mark-to-market for economic hedges	87		(9)
Less: Lease revenue	(716)	(554)	(509)
Total revenue from contracts with customers	43	76	37
Operating Segments \| Renewables \| Energy revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	784	609	545
Operating Segments \| Renewables \| Capacity revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	2	0	0
Operating Segments \| Renewables \| Other revenues
Disaggregation of Revenue [Line Items]
Total operating revenue	60	21	10
Operating Segments \| Thermal
Disaggregation of Revenue [Line Items]
Total operating revenue	204	193	201
Less: Contract amortization	(3)	(3)	(3)
Mark-to-market for economic hedges	0		0
Less: Lease revenue	(2)	(2)	(2)
Total revenue from contracts with customers	205	194	202
Operating Segments \| Thermal \| Energy revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	122	101	120
Operating Segments \| Thermal \| Capacity revenue
Disaggregation of Revenue [Line Items]
Total operating revenue	53	63	54
Operating Segments \| Thermal \| Other revenues
Disaggregation of Revenue [Line Items]
Total operating revenue	$ 32	$ 32	$ 30

Summary of Significant Accounting Policies - Contract Balances (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 144	$ 143
Customer Contracts
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	44	57
Lease Agreements
Accounts, Notes, Loans and Financing Receivable [Line Items]
Accounts receivable	$ 100	$ 86

Summary of Significant Accounting Policies - Asset Retirement Obligation (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($)
Asset Retirement Obligation, Roll Forward Analysis [Roll Forward]
Balance as of December 31, 2020	$ 117
Thermal Business AROs reclassified to held for sale	(1)
Revisions in estimates for current obligations	2
Additions	19
Accretion — expense	9
Balance as of December 31, 2021	$ 146

Acquisitions and Dispositions - Narrative (Details) $ in Millions													1 Months Ended			3 Months Ended	12 Months Ended
	Dec. 29, 2021 USD ($) MW	Dec. 17, 2021 USD ($) MW	Dec. 01, 2021 USD ($) farm MW	Apr. 23, 2021 USD ($) MW	Feb. 03, 2021 USD ($) MW	Jan. 12, 2021 USD ($) MW	Dec. 21, 2020 USD ($) MW	Nov. 20, 2020 USD ($) MW	Nov. 02, 2020 USD ($)	Sep. 01, 2020 USD ($) MW	May 14, 2020 USD ($)	Mar. 03, 2020 USD ($)	Feb. 28, 2022 USD ($)	Jan. 31, 2021 USD ($)	Jan. 31, 2021 USD ($)	Dec. 31, 2021 USD ($) MW	Dec. 31, 2021 USD ($) MW	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Oct. 22, 2021 USD ($)	Feb. 02, 2021
Business Acquisition [Line Items]
Power generation capacity, megawatts \| MW								160								9,000	9,000
Payments to acquire equity method investments																	$ 0.0	$ 11.0	$ 13.0
Investment Balance																$ 381.0	381.0	741.0
Mesquite Star HoldCo LLC
Business Acquisition [Line Items]
Power generation capacity, megawatts \| MW										419
Payments to acquire equity method investments										$ 74.0
Remaining lease term (in years)										12 years
Adjustment to noncontrolling interest										$ 83.0
Mesquite Star HoldCo LLC \| Mesquite Star
Business Acquisition [Line Items]
Investment Balance							$ 58.0
Net assets acquired less noncontrolling interests							63.0
Renew DG Holdings LLC \| Affiliated Entity \| DGPV Funds
Business Acquisition [Line Items]
Payments to acquire equity method investments									$ 20.0
SERC \| DGPV Funds
Business Acquisition [Line Items]
Payments to acquire equity method investments									$ 24.0
CEG
Business Acquisition [Line Items]
Contributions from CEG, net of distributions, non-cash																	31.0	6.0
CEG \| Non-controlling Interest
Business Acquisition [Line Items]
Contributions from CEG, net of distributions, non-cash																	$ 31.0	$ 6.0
Mesquite Star Tax Equity Holdco LLC
Business Acquisition [Line Items]
Ownership interest																100.00%
Third Party Investor
Business Acquisition [Line Items]
Ownership interest																	49.00%
RPV Holdco 1 LLC
Business Acquisition [Line Items]
Net proceeds from disposition											$ 75.0
Gain (loss) on disposition											$ 49.0
Energy Center Dover
Business Acquisition [Line Items]
Net proceeds from disposition												$ 15.0
Sale of assets, percentage of ownership interest sold												100.00%
Thermal \| Discontinued Operations, Disposed of by Sale
Business Acquisition [Line Items]
Proceeds from sale of business																				$ 1,900.0
Disposition, property, plant and equipment, percent																78.00%	78.00%
Disposition, intangible assets, percent																9.00%	9.00%
Disposition, liabilities held for sale, percent																85.00%	85.00%
Black Rock Drop Down
Business Acquisition [Line Items]
Asset acquisition consideration	$ 60.0
Power generation capacity, megawatts \| MW	115
Power purchase agreement period (in years)	15 years
Net assets acquired less noncontrolling interest	$ 19.0
Payments to acquire productive assets	$ 37.0
Black Rock Drop Down \| Subsequent Event
Business Acquisition [Line Items]
Payments to acquire productive assets													$ 23.0
Black Rock Drop Down \| CEG \| Non-controlling Interest
Business Acquisition [Line Items]
Contributions from CEG, net of distributions, non-cash																	$ 133.0
Mesquite Sky
Business Acquisition [Line Items]
Asset acquisition consideration		$ 61.0
Power purchase agreement period (in years)		12 years
Net assets acquired less noncontrolling interest		$ 7.0
Mesquite Sky \| CEG
Business Acquisition [Line Items]
Net assets acquired less noncontrolling interest		$ 53.0
Mesquite Sky \| CEG \| Non-controlling Interest
Business Acquisition [Line Items]
Contributions from CEG, net of distributions, non-cash																	$ 52.0
Mesquite Sky \| Wind Power Generation
Business Acquisition [Line Items]
Power generation capacity, megawatts \| MW		340
Utah Solar Portfolio
Business Acquisition [Line Items]
Asset acquisition consideration			$ 335.0
Power generation capacity, megawatts \| MW			530
Power purchase agreement period (in years)			20 years
Net assets acquired less noncontrolling interest			$ 330.0
Percentage equity interests acquired			50.00%
Payments for asset acquisition, net of purchase price adjustments			$ 330.0
Asset acquisition, purchase price adjustments, amount			$ 5.0
Number of utility-scale solar farms \| farm			7
Cash acquired from acquisition			$ 8.0
Asset acquisition, net cash outlfow			$ 322.0
Utah Solar Portfolio \| PacifiCorp
Business Acquisition [Line Items]
Power purchase remaining agreement period			15 years
Utah Solar Portfolio \| Clearway Energy, Inc.
Business Acquisition [Line Items]
Ownership interest			100.00%
Mount Storm Wind Acquisition
Business Acquisition [Line Items]
Net assets acquired less noncontrolling interest				$ 100.0
Percentage equity interests acquired				100.00%
Power purchase remaining agreement period				10 years
Gross consideration for asset acquisition				$ 96.0
Asset acquisition, consideration transferred, working capital and purchase price adjustments				4.0
Payments to acquire productive assets				$ 100.0
Mount Storm Wind Acquisition \| Wind Power Generation
Business Acquisition [Line Items]
Power generation capacity, megawatts \| MW				264
Agua Caliente Acquisition
Business Acquisition [Line Items]
Asset acquisition consideration					$ 202.0
Power generation capacity, megawatts \| MW					290
Power purchase agreement period (in years)					25 years
Net assets acquired less noncontrolling interest					$ 202.0
Percentage equity interests acquired					35.00%
Power purchase remaining agreement period					17 years
Asset acquisition, cash and cash equivalents and restricted Cash					$ 91.0
Payments for asset acquisition, net cash outflow					$ 111.0
Agua Caliente Acquisition \| Clearway Energy, Inc.
Business Acquisition [Line Items]
Ownership interest					51.00%
Equity interest (percent)																					16.00%
Agua Caliente Acquisition \| Third Party Investor
Business Acquisition [Line Items]
Third party ownership interest (percent)																49.00%	49.00%
Rattlesnake Drop Down
Business Acquisition [Line Items]
Asset acquisition consideration			$ 132.0			$ 132.0
Power purchase agreement period (in years)						20 years
Net assets acquired less noncontrolling interest						$ 14.0
Rattlesnake Drop Down \| Wind Power Generation
Business Acquisition [Line Items]
Power generation capacity, megawatts \| MW						160
Power generation capacity, deliverable, megawatts \| MW						144
Langford Holding LLC
Business Acquisition [Line Items]
Asset acquisition consideration								$ 64.0
Power generation capacity, megawatts \| MW								160
Net assets acquired less noncontrolling interest								$ 21.0
Percentage equity interests acquired								100.00%
Langford Holding LLC \| CEG
Business Acquisition [Line Items]
Asset acquisition consideration								$ 55.0
Langford Holding LLC \| Third Party Investor
Business Acquisition [Line Items]
Asset acquisition consideration								$ 9.0
Rosamond Central
Business Acquisition [Line Items]
Asset acquisition consideration							$ 23.0							$ 24.0	$ 1.0
Power generation capacity, megawatts \| MW							192
Net assets acquired less noncontrolling interest							$ 28.0
Percentage equity interests acquired							100.00%

Acquisitions and Dispositions - Summary of Assets and Liabilities Transferred (Details) - USD ($) $ in Millions									12 Months Ended
	Dec. 29, 2021	Dec. 17, 2021	Dec. 01, 2021	Apr. 23, 2021	Feb. 03, 2021	Jan. 12, 2021	Dec. 21, 2020	Nov. 20, 2020	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Business Acquisition [Line Items]
Other non-current assets										$ 23.0
Contributions from noncontrolling interests, net of distributions									$ 967.0	$ 247.0	$ 174.0
Payments to fund project reserve accounts						$ 29.0
Payments for other fees						5.0
Tax Equity Investors
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions						107.0
CEG
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions						103.0
Black Rock Drop Down
Business Acquisition [Line Items]
Current assets	$ 36.0
Restricted cash	35.0
Property, plant and equipment	178.0
Other non-current assets	2.0
Right-of-use assets	7.0
Total assets acquired	223.0
Long-term debt	186.0
Long-term lease liabilities	7.0
Other current and non-current liabilities	11.0
Total liabilities assumed	204.0
Net assets acquired less noncontrolling interest	(19.0)
Contributions from noncontrolling interests, net of distributions	190.0
Repayment of debt, acquired in asset acquisition	186.0
Payments to fund project reserve accounts	37.0
Payments for other fees	4.0
Black Rock Drop Down \| Tax Equity and Cash Equity Investors
Business Acquisition [Line Items]
Escrow amount									59.0
Black Rock Drop Down \| Tax Equity Investors
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions	56.0
Black Rock Drop Down \| Cash Equity Investor
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions	36.0
Black Rock Drop Down \| CEG
Business Acquisition [Line Items]
Total liabilities assumed	83.0
Contributions from noncontrolling interests, net of distributions	61.0
Mesquite Sky
Business Acquisition [Line Items]
Current assets		$ 46.0
Restricted cash		44.0
Property, plant and equipment		377.0
Other non-current assets		7.0
Right-of-use assets		45.0
Total assets acquired		475.0
Long-term debt		355.0
Long-term lease liabilities		45.0
Derivative instruments		43.0
Other current and non-current liabilities		39.0
Total liabilities assumed		482.0
Net assets acquired less noncontrolling interest		(7.0)
Contributions from noncontrolling interests, net of distributions		409.0
Repayment of debt, acquired in asset acquisition		355.0
Payments to fund project reserve accounts		61.0
Payments for other fees		1.0
Mesquite Sky \| Tax Equity and Cash Equity Investors
Business Acquisition [Line Items]
Escrow amount									$ 5.0
Mesquite Sky \| Tax Equity Investors
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions		241.0
Mesquite Sky \| Cash Equity Investor
Business Acquisition [Line Items]
Contributions from noncontrolling interests, net of distributions		107.0
Mesquite Sky \| CEG
Business Acquisition [Line Items]
Total liabilities assumed	$ 6.0
Net assets acquired less noncontrolling interest		$ (53.0)
Utah Solar Portfolio
Business Acquisition [Line Items]
Current assets			$ 20.0
Property, plant and equipment			258.0
Intangible assets for power purchase agreement			302.0
Other non-current assets			4.0
Right-of-use assets			163.0
Total assets acquired			747.0
Other current and non-current liabilities			24.0
Long-term lease liabilities			163.0
Total liabilities assumed			187.0
Equity method investment removed			(230.0)
Net assets acquired less noncontrolling interest			$ (330.0)
Mount Storm Wind Acquisition
Business Acquisition [Line Items]
Current assets				$ 3.0
Property, plant and equipment				108.0
Other non-current assets				2.0
Total assets acquired				113.0
Other current and non-current liabilities				4.0
Derivative instruments				9.0
Total liabilities assumed				13.0
Net assets acquired less noncontrolling interest				$ (100.0)
Agua Caliente Acquisition
Business Acquisition [Line Items]
Restricted cash					$ 91.0
Property, plant and equipment					154.0
Other current assets					9.0
Other non-current assets					1,022.0
Total assets acquired					1,276.0
Long-term debt					5.0
Other current and non-current liabilities					716.0
Total liabilities assumed					721.0
Noncontrolling interest					273.0
Equity method investment removed					(80.0)
Net assets acquired less noncontrolling interest					$ (202.0)
Rosamond Central
Business Acquisition [Line Items]
Current assets							$ 49.0
Property, plant and equipment							246.0
Other current assets							1.0
Total assets acquired							296.0
Long-term debt							205.0
Other current and non-current liabilities							11.0
Total liabilities assumed							216.0
Noncontrolling interest							52.0
Net assets acquired less noncontrolling interest							$ (28.0)
Langford Holding LLC
Business Acquisition [Line Items]
Current assets								$ 4.0
Property, plant and equipment								138.0
Other current assets								15.0
Total assets acquired								157.0
Other current and non-current liabilities								17.0
Total liabilities assumed								17.0
Noncontrolling interest								119.0
Net assets acquired less noncontrolling interest								$ (21.0)
Rattlesnake Drop Down
Business Acquisition [Line Items]
Current assets						8.0
Property, plant and equipment						200.0
Right-of-use assets						12.0
Total assets acquired						220.0
Long-term debt						176.0
Long-term lease liabilities						12.0
Other current and non-current liabilities						18.0
Total liabilities assumed						206.0
Net assets acquired less noncontrolling interest						(14.0)
Contributions from noncontrolling interests, net of distributions						210.0
Repayment of debt, acquired in asset acquisition						$ 176.0

Acquisitions and Dispositions - Equity Method Investments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 21, 2020	Nov. 02, 2020	May 29, 2020
Subsidiary or Equity Method Investee [Line Items]
Current assets	$ 1,531	$ 708
Property, plant and equipment	7,650	7,217
Other non-current assets	101	114
Total Assets	3,316	2,720
Long-term debt	11	0
Liabilities	16	$ 5
DGPV Holdco 3
Subsidiary or Equity Method Investee [Line Items]
Property, plant and equipment	592
Total Assets	712
Liabilities	76
Noncontrolling interest	$ 6
DGPV Funds \| DGPV Holdco 1 and 2
Subsidiary or Equity Method Investee [Line Items]
Current assets				$ 29
Property, plant and equipment				324
Intangible assets, net				19
Other non-current assets				52
Total Assets				424
Long-term debt				160
Other current and non-current liabilities				54
Liabilities				214
Noncontrolling interest				5
Net assets acquired less noncontrolling interests				$ 205
DGPV Funds \| DGPV Holdco 3
Subsidiary or Equity Method Investee [Line Items]
Current assets					$ 32
Property, plant and equipment					331
Intangible assets, net					1
Other non-current assets					37
Total Assets					401
Long-term debt					206
Other current and non-current liabilities					84
Liabilities					290
Noncontrolling interest					6
Net assets acquired less noncontrolling interests					$ 105
Mesquite Star HoldCo LLC \| Mesquite Star
Subsidiary or Equity Method Investee [Line Items]
Current assets			$ 22
Property, plant and equipment			443
Other non-current assets			31
Total Assets			496
Other current and non-current liabilities			87
Liabilities			87
Noncontrolling interest			346
Net assets acquired less noncontrolling interests			$ 63

Property, Plant and Equipment (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,151	$ 9,540
Accumulated depreciation	(2,501)	(2,323)
Net property, plant and equipment	7,650	7,217
Prepaid long term service agreement	17	14
Depreciation expense	499	420	$ 395
Facilities and equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 9,747	9,254
Facilities and equipment \| Minimum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	2 years
Facilities and equipment \| Maximum
Property, Plant and Equipment [Line Items]
Property, plant and equipment, useful life	40 years
Land and improvements
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 320	224
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	84	62
Repowering Partnership LLC
Property, Plant and Equipment [Line Items]
Depreciation expense	$ 34	$ 9

Investments Accounted for by the Equity Method and Variable Interest Entities - Maximum Exposure to Loss Limited to Equity method investments (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Investment Balance	$ 381	$ 741
Avenal
Schedule of Equity Method Investments [Line Items]
Economic Interest	50.00%
Investment Balance	$ 4
Desert Sunlight
Schedule of Equity Method Investments [Line Items]
Economic Interest	25.00%
Investment Balance	$ 239
Elkhorn Ridge
Schedule of Equity Method Investments [Line Items]
Economic Interest	66.70%
Investment Balance	$ 29
Gen Conn
Schedule of Equity Method Investments [Line Items]
Economic Interest	50.00%
Investment Balance	$ 86
San Juan Mesa
Schedule of Equity Method Investments [Line Items]
Economic Interest	75.00%
Investment Balance	$ 23

Investments Accounted for by the Equity Method and Variable Interest Entities - Summarized Financial Information of Equity Method Investments (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 01, 2021	Feb. 03, 2021
Schedule of Equity Method Investments [Line Items]
Total operating revenue	$ 1,286	$ 1,199	$ 1,032
Operating income (loss)	267	333	224
Net income (loss)	(75)	(62)	(96)
Current assets	1,531	708
Current liabilities	1,631	634
Non-current liabilities	7,882	7,243
GenConn
Schedule of Equity Method Investments [Line Items]
Total operating revenue	55	60	60
Operating income (loss)	22	26	27
Net income (loss)	13	17	17
Current assets	38	40
Non-current assets	328	344
Current liabilities	15	17
Non-current liabilities	178	185
Desert Sunlight
Schedule of Equity Method Investments [Line Items]
Total operating revenue	205	209	205
Operating income (loss)	146	142	123
Net income (loss)	112	88	58
Current assets	131	132
Non-current assets	1,228	1,244
Current liabilities	64	71
Non-current liabilities	904	921
Other
Schedule of Equity Method Investments [Line Items]
Total operating revenue	49	299	318
Operating income (loss)	16	138	110
Net income (loss)	13	60	$ 50
Current assets	26	177
Non-current assets	172	2,201
Current liabilities	24	114
Non-current liabilities	$ 98	$ 700
Agua Caliente Acquisition
Schedule of Equity Method Investments [Line Items]
Additional equity method investment interests acquired					35.00%
Utah Solar Portfolio
Schedule of Equity Method Investments [Line Items]
Additional equity method investment interests acquired				50.00%

Investments Accounted for by the Equity Method and Variable Interest Entities - VIEs that are Consolidated (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	$ 3,632	$ 2,667
Property, plant and equipment	7,650	7,217
Intangible assets	2,499	1,370
Total Assets	3,316	2,720
Liabilities	16	$ 5
Alta TE Holdco
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	53
Property, plant and equipment	331
Intangible assets	212
Total Assets	596
Liabilities	40
Noncontrolling interest	13
Net assets less noncontrolling interests	543
Buckthorn Renewables, LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	4
Property, plant and equipment	202
Intangible assets	0
Total Assets	206
Liabilities	10
Noncontrolling interest	44
Net assets less noncontrolling interests	152
DGPV Holdco 3
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	104
Property, plant and equipment	592
Intangible assets	16
Total Assets	712
Liabilities	76
Noncontrolling interest	6
Net assets less noncontrolling interests	630
Kawailoa Partnership
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	40
Property, plant and equipment	135
Intangible assets	0
Total Assets	175
Liabilities	103
Noncontrolling interest	48
Net assets less noncontrolling interests	24
Langford TE Partnership LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	17
Property, plant and equipment	132
Intangible assets	2
Total Assets	151
Liabilities	18
Noncontrolling interest	66
Net assets less noncontrolling interests	67
Lighthouse Renewable Holdco LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	84
Property, plant and equipment	605
Intangible assets	0
Total Assets	689
Liabilities	150
Noncontrolling interest	416
Net assets less noncontrolling interests	123
Lighthouse Renewable Holdco 2 LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	83
Property, plant and equipment	377
Intangible assets	0
Total Assets	460
Liabilities	118
Noncontrolling interest	239
Net assets less noncontrolling interests	103
Oahu Solar Partnership
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	47
Property, plant and equipment	172
Intangible assets	0
Total Assets	219
Liabilities	114
Noncontrolling interest	31
Net assets less noncontrolling interests	74
Pinnacle Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	12
Property, plant and equipment	108
Intangible assets	18
Total Assets	138
Liabilities	6
Noncontrolling interest	78
Net assets less noncontrolling interests	54
Rattlesnake TE Holdco LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	30
Property, plant and equipment	194
Intangible assets	0
Total Assets	224
Liabilities	23
Noncontrolling interest	98
Net assets less noncontrolling interests	103
Rosie Target Co LLC
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	26
Property, plant and equipment	251
Intangible assets	0
Total Assets	277
Liabilities	100
Noncontrolling interest	140
Net assets less noncontrolling interests	37
Wildorado TE Holdco
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	21
Property, plant and equipment	225
Intangible assets	0
Total Assets	246
Liabilities	18
Noncontrolling interest	121
Net assets less noncontrolling interests	107
Other
Schedule of Equity Method Investments [Line Items]
Other current and non-current assets	16
Property, plant and equipment	168
Intangible assets	1
Total Assets	185
Liabilities	44
Noncontrolling interest	84
Net assets less noncontrolling interests	$ 57

Investments Accounted for by the Equity Method and Variable Interest Entities - Narrative (Details) $ in Millions												2 Months Ended	6 Months Ended	12 Months Ended
	Dec. 15, 2021 USD ($)	Mar. 10, 2021 USD ($)	Jan. 12, 2021 USD ($)	Nov. 20, 2020 USD ($) MW	Nov. 02, 2020 USD ($)	May 11, 2020 USD ($)	Dec. 22, 2019 USD ($)	Nov. 26, 2019 USD ($)	Nov. 12, 2019 USD ($)	Aug. 31, 2018 USD ($) MW	Jun. 30, 2015 USD ($)	Mar. 31, 2020 USD ($)	Jun. 30, 2020 USD ($)	Dec. 31, 2021 USD ($) MW	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Feb. 26, 2021 MW	Dec. 21, 2020	May 29, 2020 project renewalOption MW	May 28, 2020 USD ($)	Feb. 07, 2020 USD ($)	Dec. 27, 2019 USD ($)	May 07, 2019 USD ($)	Mar. 08, 2019 USD ($)	Aug. 30, 2018
Schedule of Equity Method Investments [Line Items]
Retained earnings, undistributed earnings from equity method investees														$ 14	$ 10
Payments to acquire equity method investments														$ 0	11	$ 13
Power generation capacity, megawatts \| MW				160										9,000
Equity investments in affiliates														$ 381	741
Noncontrolling interest														$ 1,466	890
Percentage of cash available for distributions														95.00%
Contributions from noncontrolling interests, net of distributions														$ 967	247	174
Taxable income allocation, pre-flip																					99.00%
Long-term debt														11	0
Removed related noncontrolling interest balance						$ 8										19
Depreciation														$ 499	420	395
Rattlesnake TE Holdco LLC
Schedule of Equity Method Investments [Line Items]
Payments for asset acquisition			$ 132
Langford Holding LLC
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW				160
Asset acquisition consideration				$ 64
Non-controlling Interest
Schedule of Equity Method Investments [Line Items]
Removed related noncontrolling interest balance																14
DGPV Funds
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW														113					286
Remaining lease term (in years)														21 years
Income allocation percentage																			99.00%
Equity investments in affiliates																				$ (155)
Investment in consolidated entity													$ 10
Number of projects \| project																			7
Number of tax equity funds \| renewalOption																			6
Number of solar projects \| renewalOption																			172
Removed related noncontrolling interest balance															20
DGPV Funds \| Non-controlling Interest
Schedule of Equity Method Investments [Line Items]
Removed related noncontrolling interest balance															20
DGPV Holdco 1 and 2
Schedule of Equity Method Investments [Line Items]
Adjustment to noncontrolling interest					$ 144
Lighthouse Renewable Holdco LLC
Schedule of Equity Method Investments [Line Items]
Income allocation percentage														50.01%
Rosie Target Co LLC
Schedule of Equity Method Investments [Line Items]
Income allocation percentage																		50.00%
Repowering Partnership II LLC
Schedule of Equity Method Investments [Line Items]
Income allocation percentage								40.37%
Cash consideration to acquire interest joint venture						$ 70
Depreciation															54
Desert Sunlight
Schedule of Equity Method Investments [Line Items]
Payments to acquire equity method investments											$ 285
Business acquisition, consideration transferred, working capital											$ 171
Equity investments in affiliates														$ 239
Long-term debt														$ 345
Economic Interest														25.00%
Avenal
Schedule of Equity Method Investments [Line Items]
Equity investments in affiliates														$ 4
Economic Interest														50.00%
Kawailoa Solar Holdings LLC
Schedule of Equity Method Investments [Line Items]
Acquisition of noncontrolling interest							$ 61															$ 7
Oahu Solar, Lanikuhana
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW										15
Power purchase agreement period (in years)										22 years
Oahu Solar, Waipio
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW										46
Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Economic Interest																									21.00%
Depreciation														$ 34	9
Elbow TE Holdco
Schedule of Equity Method Investments [Line Items]
Cash considerations								$ 4
Wildorado TE Holdco
Schedule of Equity Method Investments [Line Items]
Income allocation percentage																					5.00%
Cash considerations												$ 112
CWSP Wildorado Elbow Holding LLC
Schedule of Equity Method Investments [Line Items]
Income allocation percentage														39.86%
Wind TE Holdco LLC
Schedule of Equity Method Investments [Line Items]
Income allocation percentage														60.14%
Pinnacle Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW																	54
Kawailoa Partnership
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW										49
Payments to acquire businesses, gross										$ 9
Power purchase agreement period (in years)										22 years
Capital contribution, percent																							20.00%
Acquisition of noncontrolling interest																							$ 2
Outstanding debt at time of acquisition																							120
Noncontrolling interest																							$ 21
Zephyr Oahu Partnership LLC
Schedule of Equity Method Investments [Line Items]
Capital contribution, percent																								20.00%
Acquisition of noncontrolling interest																								$ 4
Outstanding debt at time of acquisition																								143
Zephyr Oahu Partnership LLC \| Oahu Solar Partnership
Schedule of Equity Method Investments [Line Items]
Payments to acquire businesses, gross										$ 20
Financial Institutions
Schedule of Equity Method Investments [Line Items]
Taxable income allocation, pre-flip														99.00%
Taxable income allocation, post-flip														5.00%
Tax Equity Investors
Schedule of Equity Method Investments [Line Items]
Contributions from noncontrolling interests, net of distributions			107
Decrease from distributions to noncontrolling interest holders															2
Tax Equity Investors \| Non-controlling Interest
Schedule of Equity Method Investments [Line Items]
Decrease from distributions to noncontrolling interest holders															2
Tax Equity Investors \| Oahu Solar Partnership
Schedule of Equity Method Investments [Line Items]
Contributions from noncontrolling interests, net of distributions									$ 71
Tax Equity Investors \| Zephyr Oahu Partnership LLC
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest																								$ 18
CEG
Schedule of Equity Method Investments [Line Items]
Contributions from noncontrolling interests, net of distributions			103
Contributions from CEG, net of distributions, non-cash														$ 31	6
Decrease from distributions to noncontrolling interest holders	$ 64
CEG \| Langford Holding LLC
Schedule of Equity Method Investments [Line Items]
Asset acquisition consideration				$ 55
CEG \| Non-controlling Interest
Schedule of Equity Method Investments [Line Items]
Contributions from CEG, net of distributions, non-cash														$ 31	$ 6
CEG \| Pinnacle Repowering Partnership LLC \| Non-controlling Interest
Schedule of Equity Method Investments [Line Items]
Income allocation percentage														15.00%
Contributions from CEG, net of distributions, non-cash		$ 27
Payments to acquire productive assets		$ 21
CEG \| Rosie Target Co LLC
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired																		100.00%
CEG \| Langford Holding LLC
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired				100.00%
Third Party Investor \| Langford Holding LLC
Schedule of Equity Method Investments [Line Items]
Asset acquisition consideration				$ 9
Third Party Investor \| Langford Holding LLC
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired				100.00%
Second Year through Flip Point
Schedule of Equity Method Investments [Line Items]
Percentage of cash available for distributions														94.34%
Post-Flip Point
Schedule of Equity Method Investments [Line Items]
Percentage of cash available for distributions														95.00%
Post-Flip Point \| Financial Institutions
Schedule of Equity Method Investments [Line Items]
Percentage of cash available for distributions														5.00%
Pre-determined Date Through Flip Point If Flip Has Not Occured \| Financial Institutions
Schedule of Equity Method Investments [Line Items]
Percentage of cash available for distributions														100.00%
Wind Farms \| Spring Canyon II
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW														32
Percentage of voting interests acquired														90.10%
Wind Farms \| Spring Canyon III
Schedule of Equity Method Investments [Line Items]
Power generation capacity, megawatts \| MW														28
Capital Unit, Class A \| Pinnacle Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Economic Interest														100.00%
Capital Unit, Class A \| Rattlesnake TE Holdco LLC
Schedule of Equity Method Investments [Line Items]
Membership interest			107
Capital Unit, Class B \| Pinnacle Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Economic Interest														100.00%
Kawailoa Partnership
Schedule of Equity Method Investments [Line Items]
Ownership interest														51.00%
Third Party Investor
Schedule of Equity Method Investments [Line Items]
Ownership interest														49.00%
Third Party Investor \| Capital Unit, Class A \| Elbow TE Holdco
Schedule of Equity Method Investments [Line Items]
Membership interest								$ 89
Third Party Investor \| Capital Unit, Class A \| Wildorado TE Holdco
Schedule of Equity Method Investments [Line Items]
Membership interest																					$ 148
Third Party Investor \| Capital Unit, Class A \| Elbow TE Holdco \| Elbow TE Holdco
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired								100.00%
Third Party Investor \| Capital Unit, Class A \| Wildorado TE Holdco \| Wildorado TE Holdco
Schedule of Equity Method Investments [Line Items]
Percentage of voting interests acquired																					100.00%
Wind Global LLC \| Wind Farms
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest, ownership percentage by noncontrolling owners														9.90%
Rosie Class B LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership																		100.00%
Rosie TE Holdco LLC
Schedule of Equity Method Investments [Line Items]
Percentage of ownership																		100.00%
Langford Tax Equity Partnership LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest				100.00%
Langford Class B Holdco LLC
Schedule of Equity Method Investments [Line Items]
Ownership interest				100.00%
Langford Wind Project
Schedule of Equity Method Investments [Line Items]
Ownership interest				100.00%
Third-Party Tax Equity Investor \| Capital Unit, Class B \| Pinnacle Repowering Partnership LLC
Schedule of Equity Method Investments [Line Items]
Payments to acquire businesses, gross	$ 48
ITC Bridge Loan \| Kawailoa Solar Holdings LLC
Schedule of Equity Method Investments [Line Items]
Repayments of debt							57
ITC Bridge Loan \| Oahu Solar Partnership
Schedule of Equity Method Investments [Line Items]
Repayments of debt									$ 67
Term Debt \| Kawailoa Solar Holdings LLC
Schedule of Equity Method Investments [Line Items]
Proceeds from debt							$ 5
Construction Loan
Schedule of Equity Method Investments [Line Items]
Long-term debt								$ 93
Repowering Partnership Holdco LLC, due 2020 \| Variable Interest Entity, Primary Beneficiary
Schedule of Equity Method Investments [Line Items]
Debt instrument, face amount														$ 352
Rattlesnake Class B LLC Credit Facility
Schedule of Equity Method Investments [Line Items]
Repayments of debt			$ 176
Affiliated Entity
Schedule of Equity Method Investments [Line Items]
Percentage of cash available for distributions														5.00%
Affiliated Entity \| Clearway Renew LLC \| Oahu Solar Partnership
Schedule of Equity Method Investments [Line Items]
Noncontrolling interest																$ 16
Percentage of ownership																80.00%

Fair Value of Financial Instruments - Balance Sheet Grouping (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Reported Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	$ 7,782	$ 7,048
Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	7,997	7,020
Fair Value, Inputs, Level 2 \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	2,159	1,905
Fair Value, Inputs, Level 3 \| Estimate of Fair Value Measurement
Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items]
Long-term debt, including current portion	$ 5,838	$ 5,115

Fair Value of Financial Instruments - Recurring Fair Value Measurements (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	$ 6	$ 1
Derivative liabilities	242	173
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31,	19	1	$ 7
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments	0	0
Total assets	6	1
Derivative liabilities	63	129
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments	25	29
Total assets	25	29
Derivative liabilities	179	44
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Beginning balance	(15)	(9)
Total losses for the period included in earnings	(93)	0
Contracts acquired	(52)	(6)
Settlements	6	0
Ending balance	(154)	(15)	(9)
Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31,	(93)	1
Commodity contracts
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	179	44
Commodity contracts \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	0	0
Commodity contracts \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities	179	44
Interest Rate Contract
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	6	1
Derivative liabilities	63	129
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward]
Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31,	53	(38)	$ (65)
Interest Rate Contract \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 2
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	6	1
Derivative liabilities	63	129
Interest Rate Contract \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative assets	0	0
Derivative liabilities	$ 0	$ 0

Fair Value of Financial Instruments - Significant Unobservable Inputs (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) $ / MWh MWh	Dec. 31, 2020 USD ($)	Nov. 02, 2020 USD ($)
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities \| $			$ 42
Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments \| $	$ 25	$ 29
Commodity Contracts \| Fair Value, Measurements, Recurring \| Fair Value, Inputs, Level 3
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liabilities \| $	$ (179)
Minimum \| Forecast Annual Generation Levels of Certain DG Solar Facilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments, measurement input \| MWh	80,872
Minimum \| Commodity Contracts \| Measurement Input, Commodity Forward Price
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input \| $ / MWh	13.93
Maximum \| Forecast Annual Generation Levels of Certain DG Solar Facilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments, measurement input \| MWh	129,913
Maximum \| Commodity Contracts \| Measurement Input, Commodity Forward Price
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input \| $ / MWh	56.06
Weighted Average \| Forecast Annual Generation Levels of Certain DG Solar Facilities
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Other financial instruments, measurement input \| MWh	124,783
Weighted Average \| Commodity Contracts \| Measurement Input, Commodity Forward Price
Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items]
Derivative liability, measurement input \| $ / MWh	27.46

Fair Value of Financial Instruments - Narrative (Details) $ in Millions	Dec. 31, 2021 USD ($)
Nature of Business [Line Items]
Fair value assets, measured on recurring basis, valuation techniques, impact of credit reserve to fair value	$ 17
Commodity Contracts
Nature of Business [Line Items]
Percent of financial instruments using level 3 fair value inputs	74.00%
Other Financial Instrument
Nature of Business [Line Items]
Percent of financial instruments using level 3 fair value inputs	100.00%

Accounting for Derivative Instruments and Hedging Activities - Volume Buy/Sell of Company's Open Derivative Transactions (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) MWh MMBTU	Dec. 31, 2020 USD ($) MWh MMBTU
Natural Gas
Derivative [Line Items]
Notional amount, energy measure \| MMBTU	(2)	(1)
Power
Derivative [Line Items]
Notional amount, energy measure \| MWh	(17)	(8)
Interest
Derivative [Line Items]
Notional amount \| $	$ 1,326	$ 1,600

Accounting for Derivative Instruments and Hedging Activities - FV of Derivatives (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Derivative [Line Items]
Derivative assets	$ 6	$ 1
Derivative liabilities	242	173
Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	2	0
Derivative liabilities	8	23
Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	4	1
Derivative liabilities	234	150
Interest rate contracts current \| Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	5	8
Interest rate contracts current \| Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	17	25
Interest rate contracts long-term \| Derivatives Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	2	0
Derivative liabilities	3	15
Interest rate contracts long-term \| Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	4	1
Derivative liabilities	38	81
Commodity contracts current \| Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	24	5
Commodity contracts long-term \| Derivatives Not Designated as Cash Flow Hedges:
Derivative [Line Items]
Derivative assets	0	0
Derivative liabilities	$ 155	$ 39

Accounting for Derivative Instruments and Hedging Activities - Offsetting Derivatives by Counterparty Master Agreement Level (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Nov. 02, 2020
Derivative [Line Items]
Derivative liabilities, gross	$ (242)	$ (173)
Derivative Liabilities, Net Amount			$ 42
Derivative assets, gross	6	1
Fair value of gross derivative assets/(liabilities), net	(236)	(172)
Derivative instruments	0	0
Net amount	(236)	(172)
Commodity contracts
Derivative [Line Items]
Derivative liabilities, gross	(179)	(44)
Derivative instruments, liabilities	0	0
Derivative Liabilities, Net Amount	(179)	(44)
Fair value of gross derivative assets/(liabilities), net	(179)	(44)
Derivative instruments	0	0
Net amount	(179)	(44)
Interest Rate Contract
Derivative [Line Items]
Derivative liabilities, gross	(63)	(129)
Derivative instruments, liabilities	5	0
Derivative Liabilities, Net Amount	(58)	(129)
Derivative assets, gross	6	1
Derivative instruments, assets	(5)
Net amount	1	1
Fair value of gross derivative assets/(liabilities), net	(57)	(128)
Derivative instruments	0	0
Net amount	$ (57)	$ (128)

Accounting for Derivative Instruments and Hedging Activities - AOCI (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	$ 2,715	$ 2,263	$ 2,224
Mark-to-market of cash flow hedge accounting contracts	19	1	7
Ending balance	3,300	2,715	2,263
Accumulated other comprehensive loss	(6)	(14)
Losses expected to be realized from OCL during the next 12 months, net of income tax benefit of $2	(7)
Accumulated OCL ending balance, income tax benefit	2	5	6
Losses expected to be realized from OCL during the next 12 months, income tax benefit	2
Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	(30)	(31)	(38)
Ending balance	(11)	(30)	(31)
Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Reclassified from accumulated OCL to income due to realization of previously deferred amounts	8	8	16
Mark-to-market of cash flow hedge accounting contracts	11	(7)	(9)
Non-controlling Interest
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	890	413	402
Ending balance	1,466	890	413
Accumulated other comprehensive loss	(5)	(16)	(16)
AOCI Attributable to Parent
Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward]
Beginning balance	(14)	(15)	(18)
Ending balance	(6)	(14)	(15)
Accumulated other comprehensive loss	$ (6)	$ (14)	$ (15)

Accounting for Derivative Instruments and Hedging Activities - Impact of Statement of Operations (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives, net of tax	$ 19	$ 1	$ 7
Interest Rate Contract
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives, net of tax	53	(38)	(65)
Commodity Contracts
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivatives, net of tax	$ (83)	$ (4)	$ (9)

Intangible Assets - Components Subject to Amortization (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	$ 3,104	$ 1,857	$ 1,822
Finite-lived Intangible Assets Acquired		23
Net carrying amount ending balance	3,104	1,857	1,822
Less accumulated amortization	(605)	(487)
Ending balance	2,499	1,370
Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	1,328
Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	(81)
Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		12
PPAs
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	2,985	1,661	1,630
Finite-lived Intangible Assets Acquired		23
Net carrying amount ending balance	2,985	1,661	1,630
Less accumulated amortization	(566)	(431)
Ending balance	2,419	1,230
PPAs \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	1,324
PPAs \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
PPAs \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		8
Leasehold Rights
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	86	86	86
Finite-lived Intangible Assets Acquired		0
Net carrying amount ending balance	86	86	86
Less accumulated amortization	(30)	(26)
Ending balance	56	60
Leasehold Rights \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Leasehold Rights \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Leasehold Rights \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		0
Customer Relationships
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	0	66	66
Finite-lived Intangible Assets Acquired		0
Net carrying amount ending balance	0	66	66
Less accumulated amortization	0	(11)
Ending balance	0	55
Customer Relationships \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Customer Relationships \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	(66)
Customer Relationships \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		0
Customer Contracts
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	0	15	15
Finite-lived Intangible Assets Acquired		0
Net carrying amount ending balance	0	15	15
Less accumulated amortization	0	(11)
Ending balance	0	4
Customer Contracts \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Customer Contracts \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	(15)
Customer Contracts \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		0
Emission Allowances
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	17	17	17
Finite-lived Intangible Assets Acquired		0
Net carrying amount ending balance	17	17	17
Less accumulated amortization	(3)	(3)
Ending balance	14	14
Emission Allowances \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Emission Allowances \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	0
Emission Allowances \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		0
Other
Finite-lived Intangible Assets [Roll Forward]
Net carrying amount beginning balance	16	12	8
Finite-lived Intangible Assets Acquired		0
Net carrying amount ending balance	16	12	$ 8
Less accumulated amortization	(6)	(5)
Ending balance	10	7
Other \| Acquisitions
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	4
Other \| Reclassified to held for sale
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired	$ 0
Other \| Other
Finite-lived Intangible Assets [Roll Forward]
Finite-lived Intangible Assets Acquired		$ 4

Intangible Assets (Details) - USD ($) $ in Millions	12 Months Ended
Intangible Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Goodwill and Intangible Assets Disclosure [Abstract]
Amortization expense	$ 143	$ 91	$ 73
Contract amortization expense	135	$ 88	$ 72
2022	158
2023	155
2024	153
2025	153
2026	$ 153

Asset Impairments (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
Asset Impairments (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment losses				$ 6	$ 24	$ 33
Other-than-temporary impairment loss on investment				0	8	$ 0
Property, Plant and Equipment
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment losses				$ 6	$ 24
Thermal
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment losses			$ 19
Renewables
Impaired Long-Lived Assets Held and Used [Line Items]
Impairment losses		$ 14
Other-than-temporary impairment loss on investment	$ 8

Long-term Debt - Short and Long-term Borrowings (Details) - USD ($)	4 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended
	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Nov. 30, 2021	Oct. 01, 2021	Mar. 09, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
Long-term debt				$ 7,778,000,000				$ 7,043,000,000
Less current maturities				(772,000,000)				(384,000,000)
Less net debt issuance costs				(71,000,000)				(79,000,000)
Less discounts				(4,000,000)				(5,000,000)
Total long-term debt				6,939,000,000				6,585,000,000
2025 Senior Notes
Debt Instrument [Line Items]
Long-term debt				$ 0				600,000,000
Interest rate, percentage				5.75%
2026 Senior Notes
Debt Instrument [Line Items]
Long-term debt				$ 0				350,000,000
Interest rate, percentage				5.00%
2028 Senior Notes
Debt Instrument [Line Items]
Long-term debt				$ 850,000,000				850,000,000
Interest rate, percentage				4.75%
2031 Senior Notes
Debt Instrument [Line Items]
Long-term debt				$ 925,000,000				0
Interest rate, percentage				375.00%			375.00%
2032 Senior Notes
Debt Instrument [Line Items]
Long-term debt				$ 350,000,000				0
Interest rate, percentage				375.00%		3.75%
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility
Debt Instrument [Line Items]
Interest rate, percentage				1.75%
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Long-term debt				$ 245,000,000				0
Bridge Loan, Due 2022 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Long-term debt				$ 335,000,000	$ 335,000,000			0
Basis spread on variable rate				1.00%
Bridge Loan, Due 2022 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Forecast
Debt Instrument [Line Items]
Basis spread on variable rate			1.25%
Bridge Loan, Due 2022 \| Base Rate \| Forecast
Debt Instrument [Line Items]
Basis spread on variable rate	0.00%	0.25%
Agua Caliente Solar LLC, due 2037
Debt Instrument [Line Items]
Long-term debt				$ 684,000,000				0
Alta Wind Asset Management LLC, due 2031
Debt Instrument [Line Items]
Long-term debt				$ 13,000,000				14,000,000
Alta Wind Asset Management LLC, due 2031 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.625%
Alta Wind I-V lease financing arrangements, due 2034 and 2035
Debt Instrument [Line Items]
Long-term debt				$ 756,000,000				800,000,000
Alta Wind Realty Investments LLC, due 2031
Debt Instrument [Line Items]
Long-term debt				$ 24,000,000				25,000,000
Interest rate, percentage				700.00%
Borrego, due 2024 and 2038
Debt Instrument [Line Items]
Long-term debt				$ 54,000,000				57,000,000
Buckthorn Solar, due 2025
Debt Instrument [Line Items]
Long-term debt				$ 123,000,000				126,000,000
Buckthorn Solar, due 2025 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%
Carlsbad Energy Holdings LLC, due 2027
Debt Instrument [Line Items]
Long-term debt				$ 136,000,000				156,000,000
Carlsbad Energy Holdings LLC, due 2027 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.625%
Carlsbad Energy Holdings LLC, due 2038
Debt Instrument [Line Items]
Long-term debt				$ 407,000,000				407,000,000
Interest rate, percentage				412.00%
Carlsbad Holdco, due 2038
Debt Instrument [Line Items]
Long-term debt				$ 205,000,000				210,000,000
Interest rate, percentage				4.21%
CVSR, due 2037
Debt Instrument [Line Items]
Long-term debt				$ 652,000,000				675,000,000
CVSR Holdco Notes, due 2037
Debt Instrument [Line Items]
Long-term debt				$ 169,000,000				176,000,000
Interest rate, percentage				4.68%
DG-CS Master Borrower LLC, due 2040
Debt Instrument [Line Items]
Long-term debt				$ 441,000,000				467,000,000
Interest rate, percentage				3.51%
Duquesne, due 2059 (d)
Debt Instrument [Line Items]
Long-term debt				$ 0				95,000,000
Interest rate, percentage				4.62%
El Segundo Energy Center, due 2023
Debt Instrument [Line Items]
Long-term debt				$ 193,000,000				250,000,000
Energy Center Minneapolis Series D, E, F, G, H Notes, due 2025-2037 (d)
Debt Instrument [Line Items]
Long-term debt				0				327,000,000
Kawailoa Solar Portfolio LLC, due 2026
Debt Instrument [Line Items]
Long-term debt				$ 78,000,000				81,000,000
Kawailoa Solar Portfolio LLC, due 2026 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.375%
Laredo Ridge, due 2028
Debt Instrument [Line Items]
Long-term debt				$ 72,000,000				78,000,000
Laredo Ridge, due 2028 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.125%
Marsh Landing, due 2023
Debt Instrument [Line Items]
Long-term debt				$ 84,000,000				146,000,000
Marsh Landing, due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.375%
NIMH Solar, due 2024
Debt Instrument [Line Items]
Long-term debt				$ 176,000,000				191,000,000
NIMH Solar, due 2024 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.00%
Oahu Solar Holdings LLC, due 2026
Debt Instrument [Line Items]
Long-term debt				$ 86,000,000				89,000,000
Oahu Solar Holdings LLC, due 2026 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.375%
Rosie Class B LLC, due 2027
Debt Instrument [Line Items]
Long-term debt				$ 78,000,000				80,000,000
Rosie Class B LLC, due 2027 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%
Tapestry, due 2031
Debt Instrument [Line Items]
Long-term debt				$ 85,000,000				143,000,000
Tapestry, due 2031 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.375%
Utah Solar Holdings, due 2036
Debt Instrument [Line Items]
Long-term debt				$ 273,000,000				290,000,000
Interest rate, percentage				3.59%
Walnut Creek, due 2023
Debt Instrument [Line Items]
Long-term debt				$ 74,000,000				126,000,000
Walnut Creek, due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.75%
WCEP Holdings, LLC, due 2023
Debt Instrument [Line Items]
Long-term debt				$ 30,000,000				35,000,000
WCEP Holdings, LLC, due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				3.00%
Other
Debt Instrument [Line Items]
Long-term debt				$ 180,000,000				$ 199,000,000
Letter of Credit \| Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility
Debt Instrument [Line Items]
Letters of credit outstanding				83,000,000
Letter of Credit \| Agua Caliente Solar LLC, due 2037
Debt Instrument [Line Items]
Letters of credit outstanding				45,000,000
Letter of Credit \| Alta Wind Asset Management LLC, due 2031
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Alta Wind I-V lease financing arrangements, due 2034 and 2035
Debt Instrument [Line Items]
Letters of credit outstanding				34,000,000
Letter of Credit \| Alta Wind Realty Investments LLC, due 2031
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Borrego, due 2024 and 2038
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Buckthorn Solar, due 2025
Debt Instrument [Line Items]
Letters of credit outstanding				21,000,000
Letter of Credit \| Carlsbad Energy Holdings LLC, due 2027
Debt Instrument [Line Items]
Letters of credit outstanding				62,000,000
Letter of Credit \| Carlsbad Energy Holdings LLC, due 2038
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Carlsbad Holdco, due 2038
Debt Instrument [Line Items]
Letters of credit outstanding				6,000,000
Letter of Credit \| CVSR, due 2037
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| CVSR Holdco Notes, due 2037
Debt Instrument [Line Items]
Letters of credit outstanding				13,000,000
Letter of Credit \| DG-CS Master Borrower LLC, due 2040
Debt Instrument [Line Items]
Letters of credit outstanding				30,000,000
Letter of Credit \| Duquesne, due 2059 (d)
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| El Segundo Energy Center, due 2023
Debt Instrument [Line Items]
Letters of credit outstanding				138,000,000
Letter of Credit \| Energy Center Minneapolis Series D, E, F, G, H Notes, due 2025-2037 (d)
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Kawailoa Solar Portfolio LLC, due 2026
Debt Instrument [Line Items]
Letters of credit outstanding				14,000,000
Letter of Credit \| Laredo Ridge, due 2028
Debt Instrument [Line Items]
Letters of credit outstanding				3,000,000
Letter of Credit \| Marsh Landing, due 2023
Debt Instrument [Line Items]
Letters of credit outstanding				46,000,000
Letter of Credit \| NIMH Solar, due 2024
Debt Instrument [Line Items]
Letters of credit outstanding				10,000,000
Letter of Credit \| Oahu Solar Holdings LLC, due 2026
Debt Instrument [Line Items]
Letters of credit outstanding				10,000,000
Letter of Credit \| Rosie Class B LLC, due 2027
Debt Instrument [Line Items]
Letters of credit outstanding				17,000,000
Letter of Credit \| Tapestry, due 2031
Debt Instrument [Line Items]
Letters of credit outstanding				12,000,000
Letter of Credit \| Utah Solar Holdings, due 2036
Debt Instrument [Line Items]
Letters of credit outstanding				10,000,000
Letter of Credit \| Walnut Creek, due 2023
Debt Instrument [Line Items]
Letters of credit outstanding				116,000,000
Letter of Credit \| WCEP Holdings, LLC, due 2023
Debt Instrument [Line Items]
Letters of credit outstanding				0
Letter of Credit \| Other
Debt Instrument [Line Items]
Letters of credit outstanding				$ 201,000,000
Minimum \| Agua Caliente Solar LLC, due 2037
Debt Instrument [Line Items]
Interest rate, percentage				239.50%
Minimum \| Alta Wind I-V lease financing arrangements, due 2034 and 2035
Debt Instrument [Line Items]
Interest rate, percentage				5.696%
Minimum \| CVSR, due 2037
Debt Instrument [Line Items]
Interest rate, percentage				2.339%
Minimum \| El Segundo Energy Center, due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				1.875%
Maximum \| Agua Caliente Solar LLC, due 2037
Debt Instrument [Line Items]
Interest rate, percentage				363.30%
Maximum \| Alta Wind I-V lease financing arrangements, due 2034 and 2035
Debt Instrument [Line Items]
Interest rate, percentage				7.015%
Maximum \| CVSR, due 2037
Debt Instrument [Line Items]
Interest rate, percentage				3.775%
Maximum \| El Segundo Energy Center, due 2023 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate				2.50%

Long-term Debt - Narrative (Details)										1 Months Ended	4 Months Ended	7 Months Ended	9 Months Ended	12 Months Ended
Long-term Debt - Narrative (Details)	Dec. 15, 2021 USD ($)	Mar. 10, 2021 USD ($)	Nov. 02, 2020 USD ($)	Sep. 30, 2020 USD ($)	Sep. 01, 2020 USD ($)	Jun. 01, 2020 USD ($)	May 21, 2020 USD ($)	Jan. 03, 2020 USD ($)	Dec. 20, 2019 USD ($)	Oct. 31, 2021 USD ($)	Mar. 31, 2022	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2027	Dec. 31, 2021 USD ($)	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 30, 2021 USD ($)	Oct. 01, 2021 USD ($)	Mar. 11, 2021 USD ($)	Mar. 09, 2021 USD ($)	Feb. 03, 2021 USD ($)	Dec. 21, 2020 USD ($)
Debt Instrument [Line Items]
Long-term debt															$ 7,778,000,000	$ 7,043,000,000
Proceeds from the revolving credit facility															622,000,000	265,000,000	$ 152,000,000
Payments for the revolving credit facility															377,000,000	265,000,000	152,000,000
Loss on debt extinguishment															53,000,000	24,000,000	16,000,000
Long-term debt															11,000,000	0
Payments for long-term debt															0	45,000,000	$ 220,000,000
Derivative liabilities			$ 42,000,000
CS4 Borrower \| Construction Loans
Debt Instrument [Line Items]
Debt instrument, face amount																97,000,000
CS4 Borrower \| Bridge Loan
Debt Instrument [Line Items]
Debt instrument, face amount																90,000,000
CS4 Borrower \| Letter of Credit
Debt Instrument [Line Items]
Debt instrument, face amount																$ 5,000,000
CS4 Borrower \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate																2.00%
Chestnut Borrower Credit Agreement \| Letter of Credit
Debt Instrument [Line Items]
Debt instrument, face amount																$ 8,000,000
Chestnut Borrower Credit Agreement \| Loans Payable
Debt Instrument [Line Items]
Debt instrument, face amount																120,000,000
DG-CS Master Borrower LLC Financing Arrangement
Debt Instrument [Line Items]
Interest rate, percentage			3.51%
DG-CS Master Borrower LLC Financing Arrangement \| Letter of Credit
Debt Instrument [Line Items]
Proceeds from the revolving credit facility			$ 30,000,000
DG-CS Master Borrower LLC Financing Arrangement \| Loans Payable
Debt Instrument [Line Items]
Proceeds from the revolving credit facility			467,000,000
Chestnut Borrower, LLC
Debt Instrument [Line Items]
Aggregate principal amount repurchased			107,000,000
Renew Solar CS 4 Borrower LLC
Debt Instrument [Line Items]
Aggregate principal amount repurchased			102,000,000
DGPV 4 Borrower LLC
Debt Instrument [Line Items]
Aggregate principal amount repurchased			92,000,000
Puma Class B LLC
Debt Instrument [Line Items]
Aggregate principal amount repurchased			$ 73,000,000
Utah Solar Holdings, due 2036
Debt Instrument [Line Items]
Long-term debt															$ 273,000,000	290,000,000
Interest rate, percentage															3.59%
Utah Solar Holdings, due 2036 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 10,000,000
Proceeds from the revolving credit facility					$ 16,000,000
Utah Solar Holdings, due 2036 \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Proceeds from the revolving credit facility					$ 296,000,000
Interest rate, percentage					3.59%
Aggregate principal amount repurchased					$ 247,000,000
Derivative liabilities					33,000,000
Utah Solar Holdings, due 2036 \| Notes Payable, Other Payables \| Clearway Energy Operating LLC \| Affiliated Entity
Debt Instrument [Line Items]
Decrease from distributions to noncontrolling interest holders					$ 9,000,000
NIMH Solar LLC Financing Arrangement \| Letter of Credit
Debt Instrument [Line Items]
Proceeds from the revolving credit facility				$ 16,000,000
NIMH Solar LLC Financing Arrangement \| Loans Payable
Debt Instrument [Line Items]
Proceeds from the revolving credit facility				193,000,000
Proceeds from energy center notes				35,000,000
NIMH Solar LLC Financing Arrangement \| Loans Payable \| Clearway Energy Operating LLC \| Affiliated Entity
Debt Instrument [Line Items]
Decrease from distributions to noncontrolling interest holders				45,000,000
NIMH Solar LLC Financing Arrangement \| London Interbank Offered Rate (LIBOR) \| Loans Payable \| Through Third Party Anniversary of Closing
Debt Instrument [Line Items]
Interest rate, percentage															2.00%
NIMH Solar LLC Financing Arrangement \| London Interbank Offered Rate (LIBOR) \| Loans Payable \| After Third Party Anniversary of Closing
Debt Instrument [Line Items]
Interest rate, percentage															2.125%
Subtotal project-level debt
Debt Instrument [Line Items]
Long-term debt															$ 5,073,000,000	5,243,000,000
Subtotal project-level debt \| Loans Payable
Debt Instrument [Line Items]
Aggregate principal amount repurchased				$ 158,000,000
Duquesne, due 2059 (d)
Debt Instrument [Line Items]
Long-term debt															$ 0	95,000,000
Interest rate, percentage															4.62%
Duquesne, due 2059 (d) \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 0
Oahu Solar Holdings LLC, due 2026
Debt Instrument [Line Items]
Long-term debt															86,000,000	89,000,000
Oahu Solar Holdings LLC, due 2026 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 10,000,000
Oahu Solar Holdings LLC, due 2026 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate															1.375%
Kawailoa Solar Portfolio LLC, due 2026
Debt Instrument [Line Items]
Long-term debt															$ 78,000,000	81,000,000
Kawailoa Solar Portfolio LLC, due 2026 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 14,000,000
Kawailoa Solar Portfolio LLC, due 2026 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate															1.375%
Tapestry, due 2031
Debt Instrument [Line Items]
Long-term debt															$ 85,000,000	143,000,000
Aggregate principal amount repurchased		$ 53,000,000
Tapestry, due 2031 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 12,000,000
Tapestry, due 2031 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate															1.375%
Carlsbad Energy Holdings LLC, due 2038
Debt Instrument [Line Items]
Long-term debt															$ 407,000,000	407,000,000
Interest rate, percentage															412.00%
Carlsbad Energy Holdings LLC, due 2038 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 0
Rosie Class B LLC 2027
Debt Instrument [Line Items]
Debt instrument, face amount																80,000,000
Rosie Class B LLC 2027 \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding																17,000,000
Bridge credit agreement, borrowing amount																$ 23,000,000
Rosie Class B LLC 2027 \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Basis spread on variable rate																1.75%
Rosie Class B LLC 2027 \| London Interbank Offered Rate (LIBOR) \| Forecast
Debt Instrument [Line Items]
Basis spread on variable rate														2.00%
Rosie TargetCo LLC Construction Loan \| Construction Loans
Debt Instrument [Line Items]
Bridge credit agreement, borrowing amount																							$ 91,000,000
Rosie TargetCo LLC Construction Loan \| Bridge Loan
Debt Instrument [Line Items]
Bridge credit agreement, borrowing amount																							24,000,000
Rosie TargetCo LLC Construction Loan \| Investment Tax Credit Loan
Debt Instrument [Line Items]
Bridge credit agreement, borrowing amount																							$ 132,000,000
Payments for long-term debt									$ 130,000,000
Bridge Loan, Due 2022 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate
Debt Instrument [Line Items]
Long-term debt															$ 335,000,000	$ 0		$ 335,000,000
Basis spread on variable rate															1.00%
Bridge Loan, Due 2022 \| Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate \| Forecast
Debt Instrument [Line Items]
Basis spread on variable rate													1.25%
Bridge Loan, Due 2022 \| Base Rate \| Forecast
Debt Instrument [Line Items]
Basis spread on variable rate											0.00%	0.25%
Revolving Credit Facility
Debt Instrument [Line Items]
Outstanding borrowings															$ 245,000,000
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility
Debt Instrument [Line Items]
Leverage ratio																		6.00
Collateral Amount																		$ 40,000,000
Borrower leverage ratio															5.50
Covenant borrower interest coverage ratio															175.00%
Proceeds from the revolving credit facility															$ 622,000,000
Payments for the revolving credit facility															$ 377,000,000
Interest rate, percentage															1.75%
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility \| Letter of Credit
Debt Instrument [Line Items]
Letters of credit outstanding															$ 83,000,000
Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility \| London Interbank Offered Rate (LIBOR)
Debt Instrument [Line Items]
Long-term debt															245,000,000	0
3.25% Convertible Notes due 2020
Debt Instrument [Line Items]
Repayments of convertible debt						$ 45,000,000
4.75% Senior Notes due in 2028 \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Interest rate, percentage							4.75%
Debt instrument, repurchased face amount							$ 250,000,000
Debt instrument, redemption price, percentage							102.00%
Repayment of debt						$ 45,000,000
5.375% Senior Notes due in 2024 \| Notes Payable, Other Payables
Debt Instrument [Line Items]
Debt instrument, repurchased face amount								$ 88,000,000
Debt instrument, redemption price, percentage								102.70%
Debt instrument, repurchase amount								$ 90,000,000
Loss on debt extinguishment								$ (3,000,000)
Pinnacle Repowering Partnership LLC \| Construction Loans
Debt Instrument [Line Items]
Long-term debt		79,000,000
Debt instrument, face amount		$ 126,000,000
Aggregate principal amount repurchased	$ 117,000,000
Pinnacle Repowering Partnership LLC \| London Interbank Offered Rate (LIBOR) \| Construction Loans
Debt Instrument [Line Items]
Basis spread on variable rate		1.00%
2032 Senior Notes
Debt Instrument [Line Items]
Long-term debt															$ 350,000,000	0
Due to affiliate, noncurrent																			$ 350,000,000
Interest rate, percentage															375.00%				3.75%
2026 Senior Notes
Debt Instrument [Line Items]
Long-term debt															$ 0	350,000,000
Interest rate, percentage															5.00%
Debt instrument, repurchased face amount																			$ 350,000,000
Repurchased face amount, optionally exercised remaining principal, not validly tendered and purchased In tender offer																			227,000,000
Debt instrument, redemption price, percentage										103.00%
Debt instrument, repurchase amount																			$ 359,000,000
Loss on debt extinguishment										$ 9,000,000
Write off of deferred debt issuance cost										$ 3,000,000
2031 Senior Notes
Debt Instrument [Line Items]
Long-term debt															$ 925,000,000	0
Due to affiliate, noncurrent																					$ 925,000,000
Interest rate, percentage															375.00%						375.00%
2025 Senior Notes
Debt Instrument [Line Items]
Long-term debt															$ 0	$ 600,000,000
Interest rate, percentage															5.75%
Debt instrument, repurchased face amount																					$ 600,000,000
Repurchased face amount, optionally exercised remaining principal, not validly tendered and purchased In tender offer																				$ 183,000,000
Debt instrument, redemption price, percentage															106.00%
Debt instrument, repurchase amount															$ 636,000,000
Loss on debt extinguishment															(36,000,000)
Loss on extinguishment of deferred financing fees															$ 5,000,000
Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037
Debt Instrument [Line Items]
Debt instrument, face amount																						$ 716,000,000
Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037 \| Minimum
Debt Instrument [Line Items]
Interest rate, percentage																						2.395%
Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037 \| Maximum
Debt Instrument [Line Items]
Interest rate, percentage																						3.633%

Long-term Debt - Interest Rate Swaps (Details) - Interest Rate Swap $ in Millions	Dec. 31, 2021 USD ($)
Debt Instrument [Line Items]
Percentage of principal	100.00%
Fixed interest rate	3.03%
Notional amount	$ 1,326
Maturity - November 30, 2030
Debt Instrument [Line Items]
Percentage of principal	88.00%
Fixed interest rate	2.33%
Notional amount	$ 35
Maturity - May 15, 2031
Debt Instrument [Line Items]
Percentage of principal	100.00%
Fixed interest rate	2.47%
Notional amount	$ 13
Maturity - December 31, 2024
Debt Instrument [Line Items]
Percentage of principal	100.00%
Fixed interest rate	0.476%
Notional amount	$ 10
Maturity - December 31, 2041
Debt Instrument [Line Items]
Percentage of principal	81.00%
Notional amount	$ 100
Maturity - September 30, 2027
Debt Instrument [Line Items]
Percentage of principal	100.00%
Notional amount	$ 136
Maturity - December 31, 2030
Debt Instrument [Line Items]
Percentage of principal	75.00%
Fixed interest rate	2.368%
Notional amount	$ 15
Maturity - October 31, 2040
Debt Instrument [Line Items]
Percentage of principal	96.00%
Notional amount	$ 83
Maturity - December 21, 2028
Debt Instrument [Line Items]
Percentage of principal	100.00%
Notional amount	$ 72
Maturity - June 30, 2023
Debt Instrument [Line Items]
Percentage of principal	100.00%
Notional amount	$ 84
Maturity - July 29, 2044
Debt Instrument [Line Items]
Percentage of principal	95.00%
Fixed interest rate	1.446%
Notional amount	$ 74
Maturity - June 30, 2028
Debt Instrument [Line Items]
Percentage of principal	100.00%
Fixed interest rate	4.985%
Notional amount	$ 21
Maturity - May 31, 2023
Debt Instrument [Line Items]
Percentage of principal	97.00%
Fixed interest rate	4.003%
Notional amount	$ 29

Long-term Debt - Annual Maturities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Debt Instrument [Line Items]
2022	$ 772
2023	709
2024	392
2025	369
2026	422
Thereafter	5,537
Total	11	$ 0
Thermal
Debt Instrument [Line Items]
2025	4
2026	15
Thereafter	$ 404

- Definition

Amount, after unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but not limited to, notes payable, bonds payable, debentures, mortgage loans and commercial paper. Excludes capital lease obligations.

+ References + Details

Earnings (Loss) Per Share (Details) - USD ($) $ / shares in Units, shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to Clearway Energy, Inc.	$ 51	$ 25	$ (11)
Common Class A
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to Clearway Energy, Inc.	$ 15	$ 7	$ (4)
Weighted average number of shares outstanding - basic (in shares)	35	35	35
Weighted average number of common shares outstanding - diluted (in shares)	35	35	35
Earnings per weighted average common share - diluted (in dollars per share)	$ 0.44	$ 0.22	$ (0.10)
(Loss) Earnings per weighted average common share - basic and diluted (in dollars per share)	$ 0.44	$ 0.22	$ (0.10)
Common Class C
Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items]
Net income (loss) attributable to Clearway Energy, Inc.	$ 36	$ 18	$ (7)
Weighted average number of shares outstanding - basic (in shares)	82	80	74
Weighted average number of common shares outstanding - diluted (in shares)	82	81	74
Earnings per weighted average common share - diluted (in dollars per share)	$ 0.44	$ 0.22	$ (0.10)
(Loss) Earnings per weighted average common share - basic and diluted (in dollars per share)	$ 0.44	$ 0.22	$ (0.10)
Anti-dilutive equity instruments (in shares)		2	2

- Definition

The amount of net income (loss) for the period per each share of common stock or unit outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 9: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 17: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

+ Details

- Definition

The amount of net income (loss) for the period available to each share of common stock or common unit outstanding during the reporting period and to each share or unit that would have been outstanding assuming the issuance of common shares or units for all dilutive potential common shares or units outstanding during the reporting period.

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 52
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e4984-109258

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 7
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22644-107794

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 55
-Paragraph 15
-URI http://asc.fasb.org/extlink&oid=125512782&loc=d3e3842-109258

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 2
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1252-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (d)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 10: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 942
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.9-04(27))
-URI http://asc.fasb.org/extlink&oid=120399700&loc=SL114874048-224260

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 944
-SubTopic 220
-Section S99
-Paragraph 1
-Subparagraph (SX 210.7-04(23))
-URI http://asc.fasb.org/extlink&oid=120400993&loc=SL114874131-224263

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 14: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 7
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1337-109256

Reference 15: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 815
-SubTopic 40
-Section 65
-Paragraph 1
-Subparagraph (e)(4)
-URI http://asc.fasb.org/extlink&oid=123482062&loc=SL123482106-238011

Reference 16: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 220
-SubTopic 10
-Section S99
-Paragraph 2
-Subparagraph (SX 210.5-03(25))
-URI http://asc.fasb.org/extlink&oid=123367319&loc=SL114868664-224227

+ Details

- Definition

Amount, after deduction of tax, noncontrolling interests, dividends on preferred stock and participating securities; of income (loss) available to common shareholders.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 4
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22595-107794

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 10
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1448-109256

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 4: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=125511455&loc=d3e1377-109256

Reference 5: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 50
-Paragraph 1
-Subparagraph (a)
-URI http://asc.fasb.org/extlink&oid=124432515&loc=d3e3550-109257

Reference 6: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 22
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8736-108599

Reference 7: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 11
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22694-107794

Reference 8: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 260
-SubTopic 10
-Section 45
-Paragraph 60B
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=125511455&loc=SL5780133-109256

Reference 9: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (f)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

Reference 10: http://www.xbrl.org/2003/role/exampleRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 31
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8924-108599

Reference 11: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 30
-Subparagraph (b)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8906-108599

Reference 12: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 250
-SubTopic 10
-Section 50
-Paragraph 3
-URI http://asc.fasb.org/extlink&oid=124431687&loc=d3e22583-107794

Reference 13: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 280
-SubTopic 10
-Section 50
-Paragraph 32
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=123359005&loc=d3e8933-108599

+ Details

Stockholders' Equity (Details) - USD ($)		3 Months Ended				12 Months Ended			47 Months Ended
Stockholders' Equity (Details) - USD ($)	Feb. 17, 2022	Dec. 31, 2021	Sep. 30, 2021	Jun. 30, 2021	Mar. 31, 2021	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2020	Aug. 06, 2020	Aug. 09, 2016
Class of Stock
Shares of common stock sold						2,690,455
Proceeds from issuance or sale of equity						$ 63,000,000
Commission fees						600,000
Available for issuance under ATM program		$ 126,000,000				$ 126,000,000
Shares of stock acquired (in shares)						2,690,455
Preferred stock, authorized (in shares)		10,000,000				10,000,000	10,000,000
Par value - preferred stock (in usd per share)		$ 0.01				$ 0.01	$ 0.01
Common Class A
Class of Stock
Dividends per common share (in usd per share)						1.33	1.05	$ 0.80
Common Class A \| Subsequent Event
Class of Stock
Quarterly dividend, declared (in usd per share)	$ 0.3468
Common Class C
Class of Stock
Dividends per common share (in usd per share)						$ 1.33	$ 1.05	$ 0.80
Common Class C \| Subsequent Event
Class of Stock
Quarterly dividend, declared (in usd per share)	0.3468
Common Class B
Class of Stock
Dividends per common share (in usd per share)		0.3400	$ 0.3345	$ 0.3290	$ 0.3240
Quarterly dividend, declared (in usd per share)		0.3400	0.3345	0.3290	0.3240
Common Class B \| Subsequent Event
Class of Stock
Quarterly dividend, declared (in usd per share)	0.3468
Common Class D
Class of Stock
Dividends per common share (in usd per share)		0.3400	0.3345	0.3290	0.3240
Quarterly dividend, declared (in usd per share)		$ 0.3400	$ 0.3345	$ 0.3290	$ 0.3240
Common Class D \| Subsequent Event
Class of Stock
Quarterly dividend, declared (in usd per share)	$ 0.3468
2020 ATM Program
Class of Stock
Shares of common stock sold						940,790
Proceeds from issuance or sale of equity						$ 24,000,000
Aggregate sales price											$ 150,000,000
2016 ATM Program
Class of Stock
Shares of common stock sold						1,749,665
Proceeds from issuance or sale of equity						$ 39,000,000			$ 150,000,000
Aggregate sales price										$ 150,000,000

Segment Reporting (Details) - USD ($) $ in Millions	3 Months Ended			12 Months Ended
Segment Reporting (Details) - USD ($) $ in Millions	Dec. 31, 2020	Dec. 31, 2019	Jun. 30, 2019	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Segment Reporting
Total operating revenues				$ 1,286	$ 1,199	$ 1,032
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below				451	366	337
Depreciation, amortization and accretion				509	428	401
Impairment losses				6	24	33
General and administrative				40	34	29
Transaction and integration costs				7	9	3
Development costs				6	5	5
Operating income (loss)				267	333	224
Equity in earnings of unconsolidated affiliates				32	7	83
Impairment loss on investment				0	(8)	0
Gain on sale of unconsolidated affiliate				0	49	0
Other income, net				3	4	9
Loss on debt extinguishment				(53)	(24)	(16)
Interest expense, net				0	0	(1)
Income Before Income Taxes				(65)	(54)	(104)
Income tax expense (benefit)				10	8	(8)
Net Loss				(75)	(62)	(96)
Net Income (Loss) Attributable to Clearway Energy, Inc.				51	25	(11)
Equity investments in affiliates	$ (741)			(381)	(741)
Capital expenditures	106			119	106
Total Assets	2,720			3,316	2,720
Impairment losses				$ 6	$ 32	$ 33
Renewables
Segment Reporting
Impairment losses		$ 14
Impairment loss on investment	(8)
Thermal
Segment Reporting
Impairment losses			$ 19
Southern California Edison \| Conventional Generation
Segment Reporting
Customer's percentage of total revenue				17.00%	18.00%	21.00%
Southern California Edison \| Renewables
Segment Reporting
Customer's percentage of total revenue				16.00%	16.00%	19.00%
PG&E \| Conventional Generation
Segment Reporting
Customer's percentage of total revenue				10.00%	10.00%	12.00%
PG&E \| Renewables
Segment Reporting
Customer's percentage of total revenue				13.00%	8.00%	10.00%
Operating Segments
Segment Reporting
Total operating revenues				$ 1,286	$ 1,199	$ 1,032
Operating Segments \| Conventional Generation
Segment Reporting
Total operating revenues				441	437	346
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below				90	90	60
Depreciation, amortization and accretion				132	132	103
Impairment losses				0	0
General and administrative				0	0	0
Transaction and integration costs				0	0	0
Development costs				0	0	0
Operating income (loss)				219	215	183
Equity in earnings of unconsolidated affiliates				6	8	9
Impairment loss on investment					0
Gain on sale of unconsolidated affiliate					0
Other income, net				0	1	2
Loss on debt extinguishment				0	0	0
Interest expense, net				(53)	(84)	(59)
Income Before Income Taxes				172	140	135
Income tax expense (benefit)				0	0	0
Net Loss				172	140	135
Net Income (Loss) Attributable to Clearway Energy, Inc.				172	140	135
Equity investments in affiliates	(90)			(86)	(90)
Capital expenditures	12			12	12
Total Assets	2,575			2,442	2,575
Impairment losses						0
Operating Segments \| Renewables
Segment Reporting
Total operating revenues				641	569	485
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below				229	147	143
Depreciation, amortization and accretion				354	264	271
Impairment losses				6	24
General and administrative				0	0	1
Transaction and integration costs				0	0	0
Development costs				0	0	0
Operating income (loss)				52	134	56
Equity in earnings of unconsolidated affiliates				26	(1)	74
Impairment loss on investment					(8)
Gain on sale of unconsolidated affiliate					0
Other income, net				2	3	6
Loss on debt extinguishment				(1)	(21)	(1)
Interest expense, net				(142)	(216)	(239)
Income Before Income Taxes				(63)	(109)	(104)
Income tax expense (benefit)				2	0	0
Net Loss				(65)	(109)	(104)
Net Income (Loss) Attributable to Clearway Energy, Inc.				109	3	(33)
Equity investments in affiliates	(651)			(295)	(651)
Capital expenditures	44			77	44
Total Assets	7,157			9,603	7,157
Impairment losses						14
Operating Segments \| Thermal
Segment Reporting
Total operating revenues				204	193	201
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below				134	131	134
Depreciation, amortization and accretion				23	32	27
Impairment losses				0	0
General and administrative				4	3	3
Transaction and integration costs				0	0	0
Development costs				4	5	5
Operating income (loss)				39	22	13
Equity in earnings of unconsolidated affiliates				0	0	0
Impairment loss on investment					0
Gain on sale of unconsolidated affiliate					0
Other income, net				1	0	0
Loss on debt extinguishment				0	0	0
Interest expense, net				(18)	(19)	(18)
Income Before Income Taxes				22	3	(5)
Income tax expense (benefit)				0	0	0
Net Loss				22	3	(5)
Net Income (Loss) Attributable to Clearway Energy, Inc.				22	3	(5)
Equity investments in affiliates	0			0	0
Capital expenditures	50			29	50
Total Assets	627			631	627
Impairment losses						19
Corporate
Segment Reporting
Total operating revenues				0	0	0
Cost of operations, exclusive of depreciation, amortization and accretion shown separately below				(2)	(2)	0
Depreciation, amortization and accretion				0	0	0
Impairment losses				0	0
General and administrative				36	31	25
Transaction and integration costs				7	9	3
Development costs				2	0	0
Operating income (loss)				(43)	(38)	(28)
Equity in earnings of unconsolidated affiliates				0	0	0
Impairment loss on investment					0
Gain on sale of unconsolidated affiliate					49
Other income, net				0	0	1
Loss on debt extinguishment				(52)	(3)	(15)
Interest expense, net				(99)	(96)	(88)
Income Before Income Taxes				(194)	(88)	(130)
Income tax expense (benefit)				10	8	(8)
Net Loss				(204)	(96)	(122)
Net Income (Loss) Attributable to Clearway Energy, Inc.				(252)	(121)	(108)
Equity investments in affiliates	0			0	0
Capital expenditures	0			1	0
Total Assets	$ 233			$ 137	$ 233
Impairment losses						$ 0

Income Taxes (Provision) (Details) - USD ($) $ in Millions	12 Months Ended
Income Taxes (Provision) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Deferred
U.S. Federal	$ (2)	$ 7	$ (4)
State	14	1	(4)
Total — deferred	12	8	(8)
Reconciliation of the U.S. federal statutory rate to the Company's effective rate from continuing operations
Income Before Income Taxes	(65)	(54)	(104)
Tax at 21%	(13)	(11)	(22)
State taxes, net of federal benefit	(4)	(4)	(7)
Impact of non-taxable equity earnings	34	24	24
Effective Income Tax Rate Reconciliation, Change in Deferred Tax Assets Valuation Allowance, Amount	(14)	0	0
Investment tax credits	0	0	(1)
Production tax credits, including prior year true-up	(1)	(1)	(1)
Rate Change	(2)	2	0
Partnership state basis	8	0	0
State taxes assessed at subsidiaries	2	0	0
Other	2	(2)	(1)
Income tax expense (benefit)	10	8	(8)
Income tax expense (benefit)	$ 10	$ 8	$ (8)
Effective income tax rate	(19.00%)	(14.80%)	7.70%

Income Taxes (Deferred) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Deferred Tax Liabilities, Gross [Abstract]
Total deferred tax assets, net of valuation allowance	$ 267	$ 226
Total deferred tax liabilities	267	226
Deferred Tax Assets, Gross [Abstract]
Interest expense disallowance carryforward - Investment in Projects	7	11
Production tax credits	10	9
Investment tax credits	5	5
U.S. Federal net operating loss carryforwards	277	260
Capital loss carryforwards	0	12
State net operating loss carryforwards	51	48
Total deferred tax assets	350	345
Valuation allowance	(1)	(15)
Total deferred tax assets, net of valuation allowance	349	330
Net deferred noncurrent tax asset	$ 82	$ 104

Related Party Transactions (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Related Party Transaction
General and administrative	$ 40	$ 34	$ 29
RENOM
Related Party Transaction
Incurred expenses for transactions with related party	56	37	31
Due to related party	9	10
Affiliated Entity
Related Party Transaction
Due to related party	2	2
Affiliated Entity \| Administrative Services Agreements
Related Party Transaction
Incurred expenses for transactions with related party	14	10	7
CEG
Related Party Transaction
General and administrative	$ 4	$ 2	$ 1

Commitments and Contingencies (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Commitments and Contingencies Disclosure [Abstract]
Power procurement arrangements	$ 40	$ 32	$ 38
2022	7
2023	1
2024	0
2025	0
2026	0
Thereafter	0
Total	$ 8

Leases - Lease Cost (Details) - USD ($) $ in Millions	12 Months Ended
Leases - Lease Cost (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease cost	$ 27	$ 19	$ 13
Variable lease cost	15	9	8
Total lease cost	42	28	$ 21
ASSETS
Right-of-use assets, net	$ 11	$ 11
Operating Lease, Liability, Current, Statement of Financial Position [Extensible List]	Long-term lease liabilities	Long-term lease liabilities
Liabilities [Abstract]
Short-term lease liability - operating leases	$ 8	$ 8
Long-term lease liabilities	561	345
Total lease liabilities	$ 569	$ 353
Weighted average remaining lease term	28 years	25 years
Weighted average discount rate	3.50%	4.30%
Cash paid for operating leases	$ 26	$ 19

Leases - Narrative (Details) $ in Millions	Dec. 31, 2021 USD ($) renewalOption	Dec. 31, 2020 USD ($)
New Accounting Pronouncements or Change in Accounting Principle [Line Items]
Lease liability	$ 12	$ 20
Right of use assets, net	$ 11	$ 11
Weighted average discount rate	3.50%	4.30%
Lease period	35 years
Number of renewal options \| renewalOption	2
Renewal period	5 years

Leases - Maturities of Operating Lease Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Lessee, Lease, Description [Line Items]
2022	$ 28
2023	28
2024	28
2025	28
2026	29
Thereafter	801
Total lease payments (a)	942
Less imputed interest	(352)
Lease liability	12	$ 20
Thermal
Lessee, Lease, Description [Line Items]
2022	1
2023	1
2024	1
2025	1
2026	1
Thereafter	$ 31

Leases - Revenue Related to Leases (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Disaggregation of Revenue [Line Items]
Lease revenue	$ 741	$ 589	$ 537
Energy revenue
Disaggregation of Revenue [Line Items]
Lease revenue	727	566	516
Capacity revenue
Disaggregation of Revenue [Line Items]
Lease revenue	455	451	348
Operating revenue
Disaggregation of Revenue [Line Items]
Lease revenue	1,182	1,017	864
Conventional Generation \| Energy revenue
Disaggregation of Revenue [Line Items]
Lease revenue	9	10	5
Conventional Generation \| Capacity revenue
Disaggregation of Revenue [Line Items]
Lease revenue	455	451	348
Conventional Generation \| Operating revenue
Disaggregation of Revenue [Line Items]
Lease revenue	464	461	353
Renewables \| Energy revenue
Disaggregation of Revenue [Line Items]
Lease revenue	716	554	509
Renewables \| Capacity revenue
Disaggregation of Revenue [Line Items]
Lease revenue	0	0	0
Renewables \| Operating revenue
Disaggregation of Revenue [Line Items]
Lease revenue	716	554	509
Thermal \| Energy revenue
Disaggregation of Revenue [Line Items]
Lease revenue	2	2	2
Thermal \| Capacity revenue
Disaggregation of Revenue [Line Items]
Lease revenue	0	0	0
Thermal \| Operating revenue
Disaggregation of Revenue [Line Items]
Lease revenue	$ 2	$ 2	$ 2

Leases - Lessor Minimum Future Rent Payments Under Operating Leases (Details) - Conventional Generation $ in Millions	Dec. 31, 2021 USD ($)
Segment Reporting
2022	$ 453
2023	261
2024	106
2025	107
2026	108
Thereafter	1,390
Total lease payments	$ 2,425

Leases - Property, Plant and Equipment Related to Operating Leases (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Property, plant and equipment	$ 10,151	$ 9,540
Accumulated depreciation	(2,501)	(2,323)
Property, plant and equipment	7,650	7,217
Assets not related to the Companys' operating leases
Property, Plant and Equipment [Line Items]
Property, plant and equipment	8,981	7,201
Accumulated depreciation	(2,827)	(1,964)
Property, plant and equipment	$ 6,154	$ 5,237

Schedule I - Condensed Financial Information of Registrant - P/L (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Financial Statements, Captions [Line Items]
Total operating costs and expenses	$ 2	$ 2	$ 2
Equity in losses of consolidated subsidiaries	(63)	(52)	(101)
Interest expense	0	0	(1)
Total other expense, net	(63)	(52)	(102)
Income Before Income Taxes	(65)	(54)	(104)
Income tax expense (benefit)	10	8	(8)
Net Loss	(75)	(62)	(96)
Less: Net loss attributable to noncontrolling interests	(126)	(87)	(85)
Net Income (Loss) Attributable to Clearway Energy, Inc.	$ 51	$ 25	$ (11)

Schedule I - Condensed Financial Information of Registrant - B/S (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2018
Condensed Balance Sheet Statements, Captions [Line Items]
Accounts receivable — affiliates	$ 3	$ 3
Note receivable — Clearway Energy Operating LLC	1	1
Investment in consolidated subsidiaries	3,217	2,612
Deferred income taxes	95	104
Total Assets	3,316	2,720
Long-term debt	11	0
Other non-current liabilities	5	5
Liabilities	16	5
Preferred Stock, Value, Issued	0	0
Class A, Class B, Class C and Class D common stock, $0.01 par value; 3,000,000,000 shares authorized (Class A 500,000,000, Class B 500,000,000, Class C 1,000,000,000, Class D 1,000,000,000); 201,856,166 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,779,021, Class D 42,738,750) at December 31, 2021 and 201,635,990 shares issued and outstanding (Class A 34,599,645, Class B 42,738,750, Class C 81,558,845, Class D 42,738,750) at December 31, 2020	1	1
Additional paid-in capital	1,872	1,922
Accumulated deficit	(33)	(84)
Accumulated other comprehensive loss	(6)	(14)
Noncontrolling interest	1,466	890
Total Stockholders' Equity	3,300	2,715	$ 2,263	$ 2,224
Total Liabilities and Stockholders' Equity	$ 3,316	$ 2,720

Schedule I - Condensed Financial Information of Registrant - B/S Parenthetical (Details) - $ / shares	Dec. 31, 2021	Dec. 31, 2020
Condensed Financial Statements, Captions [Line Items]
Par value - preferred stock (in usd per share)	$ 0.01	$ 0.01
Preferred stock, authorized (in shares)	10,000,000	10,000,000
Preferred stock, issued (in shares)	0	0
Common stock, shares authorized (in shares)	3,000,000,000	3,000,000,000
Common stock, shares issued (in shares)	201,856,166	201,635,990
Common stock, shares outstanding (in shares)	201,856,166	201,635,990
Common Class A
Condensed Financial Statements, Captions [Line Items]
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000
Common stock, shares issued (in shares)	34,599,645	34,599,645
Common stock, shares outstanding (in shares)	34,599,645	34,599,645
Common Class B
Condensed Financial Statements, Captions [Line Items]
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	500,000,000
Common stock, shares issued (in shares)	42,738,750	42,738,750
Common stock, shares outstanding (in shares)	42,738,750	42,738,750
Common Class C
Condensed Financial Statements, Captions [Line Items]
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	81,779,021	81,558,845
Common stock, shares outstanding (in shares)	81,779,021	81,558,845
Common Class D
Condensed Financial Statements, Captions [Line Items]
Par value - common stock (in usd per share)	$ 0.01	$ 0.01
Common stock, shares authorized (in shares)	1,000,000,000
Common stock, shares issued (in shares)	42,738,750	42,738,750
Common stock, shares outstanding (in shares)	42,738,750	42,738,750

Schedule I - Condensed Financial Information of Registrant - CF (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Condensed Cash Flow Statements, Captions [Line Items]
Net Cash Used in Operating Activities	$ (2)	$ (3)	$ (5)
Investments in consolidated affiliates	2	(59)	(87)
Cash advances for notes receivable — affiliate	(2)	(3)	0
Cash received from notes receivable — affiliate	2	45	215
Net Cash Provided by (Used in) Investing Activities	2	(17)	128
Payments for long-term debt	0	(45)	(220)
Proceeds from the issuance of common stock	0	62	100
Cash received from Clearway Energy LLC for the payment of dividends	155	121	87
Payment of dividends	(155)	(121)	(87)
Net Cash Provided by (Used in) Financing Activities	0	17	(120)
Net (Decrease) Increase in Cash and Cash Equivalents	0	(3)	3
Cash, Cash Equivalents and Restricted Cash at Beginning of Period	0	3	0
Cash, Cash Equivalents and Restricted Cash at End of Period	$ 0	$ 0	$ 3

Schedule I - Condensed Financial Information of Registrant - Footnotes (Details) $ in Millions	12 Months Ended
	Dec. 31, 2021 USD ($) MW	Dec. 31, 2020 USD ($)	Dec. 31, 2019 USD ($)	Nov. 20, 2020 MW
Condensed Cash Flow Statements, Captions [Line Items]
Power generation capacity, megawatts	9,000			160
Cash distributions \| $	$ 155	$ 121	$ 87
Clearway Energy LLC \| Clearway Energy LLC
Condensed Cash Flow Statements, Captions [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	42.35%
Clearway Energy LLC \| Clearway Energy, Inc.
Condensed Cash Flow Statements, Captions [Line Items]
Limited liability company or limited partnership, members or limited partners, ownership interest	57.65%
Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind
Condensed Cash Flow Statements, Captions [Line Items]
Power generation capacity, megawatts	5,000

Schedule II (Details) - USD ($) $ in Millions	12 Months Ended
Schedule II (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward]
Balance at beginning of period	$ 15	$ 15	$ 15
Charged to costs and expenses	(14)	0	0
Charged to other accounts	0	0	0
Balance at end of period	$ 1	$ 15	$ 15