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Preferred stock, $0.01 par value; 10,000,000 shares authorized; none issued Preferred Stock, Value, Issued Preferred Stock, Value, Issued Other non-current assets Finite-lived Intangible Assets Acquired Finite-lived Intangible Assets Acquired Energy Center Dover Energy Center Dover [Member] Energy Center Dover [Member] PPA, refundable tax credit, aggregate amount utilized Power Purchase Agreement, Refundable Tax Credit, Aggregate Amount Utilized Power Purchase Agreement, Refundable Tax Credit, Aggregate Amount Utilized Distributions to noncontrolling interests, non-cash Decrease from distributions to noncontrolling interest holders Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders Disposition, liabilities held for sale, percent Disposal Group, Including Discontinued Operations, Liabilities Held for Sale, Percent Disposal Group, Including Discontinued Operations, Liabilities Held for Sale, Percent Accumulated Deficit Retained Earnings [Member] Debt Instrument, Period [Axis] Debt Instrument, Period [Axis] Debt Instrument, Period Equity interest (percent) Noncontrolling Interest, Ownership Percentage by Parent Distributions from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution Buckthorn Renewables, LLC Buckthorn Renewables, LLC [Member] Buckthorn Renewables, LLC [Member] Total deferred tax assets, net of valuation allowance Deferred Tax Liabilities, Investment in Noncontrolled Affiliates PPAs PPAs [Member] PPAs Debt instrument, repurchased face amount Debt Instrument, Repurchased Face Amount Intangible assets for power purchase agreement Intangible Assets Acquired, Purchase Power Agreement Intangible Assets Acquired, Purchase Power Agreement Agua Caliente Solar LLC, due 2037 Agua Caliente Solar LLC, Due 2037 [Member] Agua Caliente Solar LLC, Due 2037 Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Schedule of distributions paid Schedule of Distributions Paid [Table Text Block] Schedule of Distributions Paid [Table Text Block] Property, Plant and Equipment [Line Items] Property, Plant and Equipment [Line Items] Entity Well-known Seasoned Issuer Entity Well-known Seasoned Issuer Comprehensive Loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Oahu Solar, Lanikuhana Oahu Solar, Lanikuhana [Member] Oahu Solar, Lanikuhana [Member] Stock-Based Compensation Compensation Related Costs, Policy [Policy Text Block] Contributions from CEG, net of distributions, non-cash Adjustments To Additional Paid In Capital, Distributions Paid Non-Cash, Net Of Contributions Adjustments To Additional Paid In Capital, Distributions Paid Non-Cash, Net Of Contributions (Loss) Earnings per weighted average common share - basic and diluted (in dollars per share) Earnings Per Share, Basic Fixed interest rate Derivative, Fixed Interest Rate Measurement Input, Commodity Forward Price Measurement Input, Commodity Forward Price [Member] Cash acquired from acquisition Cash Acquired from Acquisition 2022 Long-Term Debt, Maturity, Year One Alpine Alpine [Member] Alpine Power generation capacity, deliverable, megawatts Power Generation Capacity, Deliverable, Megawatts Power Generation Capacity, Deliverable, Megawatts Project Level Subsidiaries Project Level Subsidiaries [Member] Project Level Subsidiaries [Member] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Common Class C Common Class C [Member] SCHEDULE II VALUATION AND QUALIFYING ACCOUNTS SEC Schedule, 12-09, Schedule of Valuation and Qualifying Accounts Disclosure [Text Block] Derivative instruments Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset Derivative Asset Fair Value Gross Liability Net Of Derivative Liability Fair Value Gross Asset Cumulative Effect, Period of Adoption, Adjustment Cumulative Effect, Period of Adoption, Adjustment [Member] Amortization of intangibles and out-of-market contracts Amortization of Intangibles and Out of Market Contracts The aggregate (income) expense recorded in earnings to allocate the cost of out-of-market contracts and intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash (income) expense, this element is added back to net income when calculating cash provided by (used in) operations using the indirect method. 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December 31, 2041 Maturity - December 31, 2041 [Member] Maturity - December 31, 2041 [Member] Scenario [Axis] Scenario [Axis] Utah Solar Portfolio Utah Portfolio [Member] Utah Portfolio [Member] Additional paid-in capital Additional Paid in Capital LIABILITIES AND STOCKHOLDERS’ EQUITY Liabilities and Equity [Abstract] Commission fees Sale of Stock, Commission Fees Sale of Stock, Commission Fees Interest Rate Swap Interest Rate Swap [Member] 5.375% Senior Notes due in 2024 5.375% Senior Notes due in 2024 [Member] 5.375% Senior Notes due in 2024 [Member] GenConn GenConn [Member] GenConn Maturity - December 31, 2024 Maturity - December 31, 2024 [Member] Maturity - December 31, 2024 4.75% Senior Notes due in 2028 4.75% Senior Notes due in 2028 [Member] 4.75% Senior Notes due in 2028 Derivative instruments Derivative Liability, Current Effects of NRG Yield's accumulated OCI balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax Schedule of Cash Flow Hedges Included in Accumulated Other Comprehensive Income (Loss) [Table Text Block] Langford Tax Equity Partnership LLC Langford Tax Equity Partnership LLC [Member] Langford Tax Equity Partnership LLC Entity Interactive Data Current Entity Interactive Data Current Thereafter Long-Term Debt, Maturity, after Year Five 2025 Finite-Lived Intangible Asset, Expected Amortization, Year Four Finite-lived Intangible Assets [Roll Forward] Finite-lived Intangible Assets [Roll Forward] Drop Down Assets contingent consideration Business Combination, Contingent Consideration Arrangements, Change in Amount of Contingent Consideration, Liability Kansas South Kansas South [Member] Kansas South [Member] Affiliated Entity Affiliated Entity [Member] Minimum Future Rent Payments Under the Operating Leases Lessor, Operating Lease, Payment to be Received, Fiscal Year Maturity [Table Text Block] Balance Sheet Location [Domain] Balance Sheet Location [Domain] Less: Comprehensive loss attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Contract amortization expense Contra Revenue Intangibles Amortization Intangibles Amortization recorded to contra-revenue account Total deferred tax assets Deferred Tax Assets, Gross Income Tax Authority [Domain] Income Tax Authority [Domain] Asset acquisition, purchase price adjustments, amount Asset Acquisition, Purchase Price Adjustments, Amount Asset Acquisition, Purchase Price Adjustments, Amount Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding CS4 Borrower CS4 Borrower [Member] CS4 Borrower Entity Address, State or Province Entity Address, State or Province Contributions from noncontrolling interests, net of distributions, cash Noncontrolling Interest, Increase from Sale of Parent Equity Interest Additions Asset Retirement Obligation, Liabilities Incurred 2022 Lessor, Operating Lease, Payment to be Received, Year One Deferred income taxes Deferred Income Tax Assets, Net Current Liabilities Liabilities, Current [Abstract] Mesquite Star Mesquite Star [Member] Mesquite Star Receivable [Domain] Receivable [Domain] General and administrative General and Administrative Expense Renew CS4 Borrower LLC Renew CS4 Borrower LLC [Member] Renew CS4 Borrower LLC Accounting Policies [Abstract] Accounting Policies [Abstract] Derivative Instrument [Axis] Derivative Instrument [Axis] Equity in losses of consolidated subsidiaries Equity in Earnings of Consolidated Subsidiaries This item represents the proportionate share of the parent in the earnings of the consolidated subsidiaries. Lease liability Operating Lease, Liability Document Transition Report Document Transition Report 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 Common Stock, Value, Issued Accumulated OCL ending balance, income tax benefit Accumulated Other Comprehensive Income (Loss), Cumulative Change in Gain (Loss) from Cash Flow Hedges, Tax Amount Accumulated Other Comprehensive Income (Loss), Cumulative Change in Gain (Loss) from Cash Flow Hedges, Tax Amount Alta Wind Realty Investments LLC, due 2031 Alta Realty Investments, LLC due 2031 [Member] Alta Realty 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Edison Southern California Edison [Member] Southern California Edison [Member] Goodwill and Intangible Assets Disclosure [Abstract] Goodwill and Intangible Assets Disclosure [Abstract] Repayment of debt Repayments of Senior Debt WCEP Holdings, LLC, due 2023 WCEP Holdings, LLC due 2023 [Member] WCEP Holdings, LLC due 2023 Langford Wind Project Langford Wind Project [Member] Langford Wind Project El Segundo El Segundo [Member] El Segundo [Member] Property, plant and equipment, useful life Property, Plant and Equipment, Useful Life Stockholders' Equity Stockholders' Equity Attributable to Parent [Abstract] Tapestry Tapestry Wind [Member] Tapestry Wind [Member] Wind TE Holdco Wind TE Holdco [Member] Wind TE Holdco [Member] Total liabilities assumed Asset Acquisition, Liabilities Assumed Asset Acquisition, Liabilities Assumed Concentrations of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Long-term lease liabilities Operating Lease, Liability, Noncurrent Percentage 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Identified Assets Acquired and Liabilities Assumed [Table Text Block] Charged to other accounts SEC Schedule, 12-09, Valuation Allowances and Reserves, Additions, Charge to Other Account Condensed Financial Statements [Table] Condensed Financial Statements [Table] Total deferred tax liabilities Deferred Tax Liabilities, Gross Restrictions on Cash and Cash Equivalents Restrictions on Cash and Cash Equivalents [Table Text Block] Equity investments in affiliates Investment Balance Equity investments in affiliates Equity Method Investments Income Statement [Abstract] Income Statement [Abstract] RENOM RENOM [Member] RENOM [Member] Entity Registrant Name Entity Registrant Name Oahu Solar, Waipio Oahu Solar, Waipio [Member] Oahu Solar, Waipio [Member] Payments for asset acquisition, net cash outflow Payments for Asset Acquisition, Net Cash Outflow Payments for Asset Acquisition, Net Cash Outflow Cash distributions Proceeds from Dividends Received Related Party Transaction [Axis] Related Party Transaction [Axis] Through Third Party Anniversary of Closing Through Third Party Anniversary of Closing [Member] Through Third Party Anniversary of Closing Income tax expense (benefit) Income tax expense (benefit) Income Tax Expense (Benefit) Accounts receivable — trade Accounts Receivable, after Allowance for Credit Loss, Current Accumulated Other Comprehensive Income (Loss) [Table] Accumulated Other Comprehensive Income (Loss) [Table] Entity Tax Identification Number Entity Tax Identification Number Document Fiscal Period Focus Document Fiscal Period Focus Oahu Solar Holdings LLC, due 2026 Oahu Solar Holdings LLC, due 2026 [Member] Oahu Solar Holdings LLC, due 2026 [Member] Total current assets Current assets Assets, Current Buyout of Repowering Partnership II LLC noncontrolling interest Payments of Capital Distribution Total lease payments (a) Lessee, Operating Lease, Liability, to be Paid Renew Solar CS 4 Borrower LLC Renew Solar CS 4 Borrower LLC [Member] Renew Solar CS 4 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Operating Lease, Liability, to be Paid, Year One Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Schedule of Accounts, Notes, Loans and Financing Receivable [Table] Disposal Group Name [Domain] Disposal Group Name [Domain] WCEP Holdings WCEP Holdings [Member] WCEP Holdings [Member] Buckthorn Solar, due 2025 Buckthorn Solar, due 2025 [Member] Buckthorn Solar, due 2025 [Member] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Subtotal project-level debt Project Level Debt [Member] Project Level Debt [Member] Shares of stock acquired (in shares) Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent, Shares Consolidation, Less than Wholly Owned Subsidiary, Parent Ownership Interest, Changes, Purchase of Interest by Parent, Shares Kawailoa Solar Portfolio LLC, due 2026 Kawailoa Solar Holdings LLC, due 2026 [Member] Kawailoa Solar Holdings LLC, due 2026 [Member] 2026 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Block] PacifiCorp PacifiCorp [Member] PacifiCorp State and Local Jurisdiction State and Local Jurisdiction [Member] Cash received from notes receivable — affiliate Increase (Decrease) in Notes Receivable, Related Parties Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Thermal Business AROs reclassified to held for sale Asset Retirement Obligation, Liabilities Reclassified To Held-for-Sale Asset Retirement Obligation, Liabilities Reclassified To Held-for-Sale Cost of operations, exclusive of depreciation, amortization and accretion shown separately below Cost of Revenue Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Pinnacle Repowering Partnership LLC Pinnacle Repowering Partnership HoldCo LLC [Member] Pinnacle Repowering Partnership HoldCo LLC Related Party Transaction Related Party Transaction [Line Items] Langford Class B Holdco LLC Langford Class B Holdco LLC [Member] Langford Class B Holdco LLC Equity in earnings of unconsolidated affiliates Equity in earnings of unconsolidated affiliates Equity in earnings of unconsolidated affiliates Income (Loss) from Equity Method Investments Limited liability company or limited partnership, members or limited partners, ownership interest Company ownership, percentage Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Fair value of financial instruments Fair Value Disclosures [Text Block] Number of tax equity funds Number of Tax Equity Funds Number of Tax Equity Funds San Juan Mesa San Juan Mesa [Member] San Juan Mesa Other Ownership Interests Name [Axis] Other Ownership Interests Name [Axis] 2024 Finite-Lived Intangible Asset, Expected Amortization, Year Three Elbow TE Holdco Elbow TE Holdco [Member] Elbow TE Holdco [Member] Deferred Tax Liabilities, Gross [Abstract] Deferred Tax Liabilities, Gross [Abstract] Business and Asset Acquisitions Business Combinations Policy [Policy Text Block] Disposition, intangible assets, percent Disposal Group, Including Discontinued Operations, Intangible Assets, Percent Disposal Group, Including Discontinued Operations, Intangible Assets, Percent Derivative [Table] Derivative [Table] Asset acquisition, cash and cash equivalents and restricted Cash Asset Acquisition, Cash and Cash Equivalents and Restricted Cash Asset Acquisition, Cash and Cash Equivalents and Restricted Cash Operating Revenues Revenues [Abstract] Other Other Consolidated Variable Interest Entities [Member] Other Consolidated Variable Interest Entities [Member] Document Period End Date Document Period End Date Buyout of Wind TE Holdco noncontrolling interest Payments to Acquire Additional Interest in Subsidiaries Carlsbad Energy Holdings LLC, due 2027 Carlsbad Energy Holdings LLC, due 2027 [Member] Carlsbad Energy Holdings LLC, due 2027 Consolidated Entities [Domain] Consolidated Entities [Domain] Langford Holding LLC Langford Holding LLC [Member] Langford Holding LLC State Deferred State and Local Income Tax Expense (Benefit) Impairment losses Tangible Asset Impairment Charges 2025 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Four Schedule of property, plant and equipment Property, Plant and Equipment [Table Text Block] Purpose [Axis] Purpose [Axis] Purpose [Axis] Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind [Member] Conventional Generation, Utility-Scale Solar, Distributed Solar, and Wind [Member] 2028 Senior Notes 4.75% Senior Notes due 2028 [Member] 4.75% Senior Notes due 2028 [Member] Bridge Loan Bridge Loan [Member] Non-cash investing and financing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Property, plant and equipment Property, Plant and Equipment, Additions, Net Property, Plant and Equipment, Additions, Net CEG CEG [Member] CEG [Member] Schedule of Impaired Long-Lived Assets Held and Used [Table] Schedule of Impaired Long-Lived Assets Held and Used [Table] Tax Equity Investors Tax Equity Investors [Member] Tax Equity Investors [Member] Condensed Financial Statements, Captions [Line Items] Condensed Financial Statements, Captions [Line Items] Wildorado TE Holdco Wildorado TE Holdco [Member] Wildorado TE Holdco Property, plant and equipment, net Property, plant and equipment Net property, plant and equipment Property, Plant and Equipment, Net Total operating costs and expenses Operating Expenses Power Generation Facilities by Type [Axis] Power Generation Facilities by Type [Axis] The types of power generation facilities included in the entity's total global generation portfolio. Land and improvements Land and Land Improvements [Member] Schedule future amortization expense for intangibles Schedule of Finite-Lived Intangible Assets, Future Amortization Expense [Table Text Block] Payments for long-term debt Payments for long-term debt Repayments of Long-term Debt Earnings Per Share Attributable to Clearway Energy, Inc. Class A and Class C Common Stockholders Earnings Per Share [Abstract] Property, plant and equipment, gross Property, plant and equipment Property, Plant and Equipment, Gross Contracts acquired Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Purchases Lighthouse Partnership Yield Protection Agreement Adjustment To Additional Paid-In Capital, Consolidated Entity Investment Guarantee Adjustment To Additional Paid-In Capital, Consolidated Entity Investment Guarantee Interest expense disallowance carryforward - Investment in Projects Deferred Tax Assets, Interest Expense Disallowed Carryforward - investments in Projects Deferred Tax Assets, Interest Expense Disallowed Carryforward - investments in Projects Total operating revenues Total operating revenue Revenues Reclassified from accumulated OCL to income due to realization of previously deferred amounts Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Asset acquisition consideration Asset Acquisition, Consideration Transferred Utah Solar Portfolio Utah Solar Portfolio [Member] Utah Solar Portfolio Summary of Significant Accounting Policies [Line Items] Summary of Significant Accounting Policies [Line Items] [Line Items] for Summary of Significant Accounting Policies [Table] Other Income (Expense) Costs and Expenses [Abstract] Due to affiliate, noncurrent Due to Affiliate, Noncurrent Asset Acquisition [Domain] Asset Acquisition [Domain] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Entity Current Reporting Status Entity Current Reporting Status Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Earnings Per Share, Basic, by Common Class, Including Two Class Method [Line Items] Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility [Member] Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility Business Acquisition [Line Items] Asset Acquisition [Line Items] Effective income tax rate Effective Income Tax Rate Reconciliation, Percent Property, Plant, and Equipment Net Lessor, Operating Leases, Property, Plant and Equipment [Table Text Block] Lessor, Operating Leases, Property, Plant and Equipment [Table Text Block] Other Financial Instrument Other Financial Instrument [Member] Other Financial Instrument Counterparty Name [Axis] Counterparty Name [Axis] DG-CS Master Borrower LLC Financing Arrangement DG-CS Master Borrower LLC Financing Arrangement [Member] DG-CS Master Borrower LLC Financing Arrangement Loss on disposal of asset components Gain (Loss) on Disposition of Property Plant Equipment Adjustment to noncontrolling interest Noncontrolling Interest, Adjustment for Purchase of Interests Noncontrolling Interest, Adjustment for Purchase of Interests Loss on extinguishment of deferred financing fees Gain (Loss) On Extinguishment Of Deferred Financing Fees Gain (Loss) On Extinguishment Of Deferred Financing Fees Leases [Abstract] Leases [Abstract] Number of utility-scale solar farms Number of Utility-Scale Solar Farms Number of Utility-Scale Solar Farms Income Taxes Income Tax, Policy [Policy Text Block] London Interbank Offered Rate (LIBOR) London Interbank Offered Rate (LIBOR) [Member] Intangible Assets Goodwill and Intangible Assets, Intangible Assets, Policy [Policy Text Block] Accumulated Other Comprehensive Income (Loss) [Line Items] Accumulated Other Comprehensive Income (Loss) [Line Items] Wind Farms Wind Farms [Member] Wind farm generation capacity. Disposal Group Classification [Domain] Disposal Group Classification [Domain] Entity Address, Postal Zip Code Entity Address, Postal Zip Code Natural Gas Underlying Asset Class [Domain] Pinnacle Repowering Partnership LLC Pinnacle Repowering Partnership LLC [Member] Pinnacle Repowering Partnership LLC Revenue Recognition Revenue from Contract with Customer [Policy Text Block] 2022 Purchase Obligation, to be Paid, Year One Weighted average number of common shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Administrative Services Agreements Administrative Services Agreement [Member] Administrative Services Agreement [Member] Income Taxes Income Tax Disclosure [Text Block] Long-term Debt, Type [Axis] Long-term Debt, Type [Axis] Related Party [Domain] Related Party [Domain] Basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Weighted average number of common shares outstanding - basic and diluted (in shares) Weighted Average Number of Shares Outstanding, Basic and Diluted Langford TE Partnership LLC Langford TE Partnership LLC [Member] Langford TE Partnership LLC Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Third Party Investor Third Party Investor [Member] Third Party Investor [Member] Class of Stock Class of Stock [Line Items] Total Purchase Obligation Finite-Lived Intangible Assets, Major Class Name [Domain] Finite-Lived Intangible Assets, Major Class Name [Domain] Derivatives Not Designated as Cash Flow Hedges: Not Designated as Hedging Instrument [Member] Entity Address, Address Line One Entity Address, Address Line One Accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Roadrunner Roadrunner [Member] Roadrunner [Member] Cash Flows from Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Principles of Consolidation Consolidation, Policy [Policy Text Block] Entity Shell Company Entity Shell Company Natural Gas Natural Gas [Member] Total current liabilities Current liabilities Liabilities, Current State taxes assessed at subsidiaries Effective Income Tax Rate Reconciliation, State Taxes Assessed at Subsidiary Effective Income Tax Rate Reconciliation, State Taxes Assessed at Subsidiary 2016 ATM Program 2016 ATM Program [Member] 2016 ATM Program 3.25% Convertible Notes due 2020 3.25% Convertible Notes due 2020 [Member] 3.25% Convertible Notes due 2020 [Member] 2026 Senior Notes 5.00% Senior Notes due in 2026 [Member] 5.00% Senior Notes due in 2026 [Member] Common Class D Common Class D [Member] Common Class D [Member] Laredo Ridge Laredo Ridge [Member] Laredo Ridge [Member] Current Fiscal Year End Date Current Fiscal Year End Date Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Cash Distribution Cash Distribution [Member] Statement [Table] Statement [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Collaborative Arrangement and Arrangement Other than Collaborative [Table] Recent Accounting Developments New Accounting Pronouncements, Policy [Policy Text Block] Investment tax credits Deferred Tax Assets, Other Changes in derivative instruments Increase (Decrease) in Derivative Assets and Liabilities NIMH Solar LLC NIMH Solar LLC [Member] NIMH Solar LLC Statistical Measurement [Axis] Statistical Measurement [Axis] Trade Receivables and Allowance for Doubtful Accounts Accounts Receivable [Policy Text Block] Subsequent Event Subsequent Event [Member] CWSP Wildorado Elbow Holding LLC CWSP Wildorado Elbow Holding LLC [Member] CWSP Wildorado Elbow Holding LLC [Member] Maturity - September 30, 2027 Maturity - September 30, 2027 [Member] Maturity - September 30, 2027 Guarantees Guarantees, Indemnifications and Warranties Policies [Policy Text Block] Intangible assets Ending balance Finite-Lived Intangible Assets, Net Noncontrolling interest Stockholders' Equity Attributable to Noncontrolling Interest Period [Domain] Period [Domain] [Domain] for Period [Axis] Covenant borrower interest coverage ratio Debt Instrument, Covenant, Borrower Interest Coverage Ratio Debt Instrument, Covenant, Borrower Interest Coverage Ratio Scenario [Domain] Scenario [Domain] Adjustments to reconcile net loss to net cash provided by operating activities: Adjustments to Reconcile Net Income (Loss) to Cash Provided by (Used in) Operating Activities [Abstract] Oahu Solar Oahu Solar Holdings LLC Debt [Member] Oahu Solar Holdings LLC Debt [Member] Subsequent Event Type [Axis] Subsequent Event Type [Axis] Utah Solar Holdings, due 2036 Utah Solar Holdings, due 2036 [Member] Utah Solar Holdings, due 2036 Operating lease cost Operating Lease, Cost Related Party Transactions Related Party Transactions Disclosure [Text Block] Interest Interest [Member] Details pertaining to interest rate swaps which are considered a derivative commodity. Total — deferred Deferred Income Tax Expense (Benefit) Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Collaborative Arrangement and Arrangement Other than Collaborative [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Condensed Cash Flow Statements, Captions [Line Items] Nature of Business [Line Items] Nature of Business [Line Items] [Line Items] for Nature of Business [Table] Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Hedging Designation [Domain] Hedging Designation [Domain] Asset Acquisition [Axis] Asset Acquisition [Axis] Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Net Income (Loss) Attributable to Clearway Energy, Inc. Net Income (Loss) Attributable to Parent Number of renewal options Lessee, Operating Lease, Number of Renewal Options Lessee, Operating Lease, Number of Renewal Options Right-of-use assets, net Right of use assets, net Operating Lease, Right-of-Use Asset Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037 Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037 [Member] Agua Caliente Solar, LLC, Nonrecourse Credit Agreement, Federal Financing Bank, Due 2037 Net notional volume buy/(sell) of NRG Yield's open derivative transactions broken out by commodity Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Gain on sale of unconsolidated affiliate Gain on sale of unconsolidated affiliate Equity Method Investment, Realized Gain (Loss) on Disposal Interest Rate Contract Interest Rate Contract [Member] Condensed Financial Information of Registrant Condensed Financial Information of Parent Company Only Disclosure [Text Block] Less accumulated amortization Finite-Lived Intangible Assets, Accumulated Amortization Statistical Measurement [Domain] Statistical Measurement [Domain] Spring Canyon II Spring Canyon II [Member] Spring Canyon II [Member] Notional amount, energy measure Derivative, Nonmonetary Notional Amount, Energy Measure Schedule of annual payments based on the maturities of NRG Yield's debt Schedule of Maturities of Long-term Debt [Table Text Block] Schedule of Subsidiary or Equity Method Investee [Table] Schedule of Subsidiary or Equity Method Investee [Table] Proceeds from sale of business Disposal Group, Including Discontinued Operation, Consideration Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Refundable tax credit receivable Refundable Tax Credit Receivable Refundable Tax Credit Receivable Kawailoa Solar Holdings LLC Debt Kawailoa Solar Holdings LLC Debt [Member] Kawailoa Solar Holdings LLC Debt [Member] Other non-current assets Other Assets, Noncurrent Segments [Axis] Segments [Axis] Noncontrolling interest Noncontrolling Interest in Variable Interest Entity Impaired Long-Lived Assets Held and Used [Line Items] Impaired Long-Lived Assets Held and Used [Line Items] Entity File Number Entity File Number Debt instrument, redemption price, percentage Debt Instrument, Redemption Price, Percentage APIC, Share-based Payment Arrangement, Increase for Cost Recognition APIC, Share-based Payment Arrangement, Increase for Cost Recognition Incurred expenses for transactions with related party Related Party Transaction, Expenses from Transactions with Related Party Payments for asset acquisition, net of purchase price adjustments Payments for Asset Acquisition, Net of Purchase Price Adjustments Payments for Asset Acquisition, Net of Purchase Price Adjustments Other Other Debt [Member] Represents other debt instruments not separately accounted disclosed. Condensed Balance Sheet Statements, Captions [Line Items] Condensed Balance Sheet Statements, Captions [Line Items] Asset acquisition, net cash outlfow Payments to Acquire Asset, Net of Cash Acquired and Purchase Price Adjustments Payments to Acquire Asset, Net of Cash Acquired and Purchase Price Adjustments Financial Institutions Financial Institutions [Member] Represents the information pertaining to the financial institutions. Percentage of cash available for distributions Percentage of Cash Available for Distributions Percentage of Cash Available for Distributions Number of solar projects Number of Solar Projects Number of Solar Projects Carlsbad Holdco, due 2038 Carlsbad Holdco, due 2038 [Member] Carlsbad Holdco, due 2038 Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Marsh Landing, due 2023 Marsh Landing Term Loan Facility [Member] Marsh Landing Term Loan Facility [Member] Variable lease cost Variable Lease, Cost Long-term debt Long-term Debt and Lease Obligation Underlying Asset Class [Axis] Underlying Asset Class [Axis] Rosie TE Holdco LLC Rosie TE Holdco LLC [Member] Rosie TE Holdco LLC Non-cash contributions from CEG, net of distributions Payment of capital distributions and returns of capital, net of capital distributions, non-cash Payment of capital distributions and returns of capital, net of capital distributions, non-cash Restricted cash Asset Acquisition, Restricted Cash Asset Acquisition, Restricted Cash Borrego, due 2024 and 2038 Borrego, due 2034 and 2035 [Member] Borrego, due 2034 and 2035 Impairment loss on investment Other-than-temporary impairment loss on investment Impairment loss on investment Equity Method Investment, Other than Temporary Impairment Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Fair value of gross derivative assets/(liabilities), net Fair Value of Gross Derivative Assets/(Liabilities), Net Fair value of gross derivative assets less fair value of gross derivative liabilities. Disposal Group Name [Axis] Disposal Group Name [Axis] 2025 Senior Notes 5.75% Senior Notes due 2025 [Member] 5.75% Senior Notes due 2025 [Member] ASSETS Assets [Abstract] Related Party Transactions [Abstract] Related Party Transactions [Abstract] 2024 Long-Term Debt, Maturity, Year Three Commodity contracts current Commodity Contract Current [Member] Commodity Contract Current Accounting for derivative instruments and hedging activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Ownership interest Subsidiary of Limited Liability Company or Limited Partnership, Ownership Interest U.S. Federal net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, Domestic Forecast Annual Generation Levels of Certain DG Solar Facilities Forecast Annual Generation Levels Of Certain DG Solar Facilities [Member] Forecast Annual Generation Levels Of Certain DG Solar Facilities Intangible assets Goodwill and Intangible Assets Disclosure [Text Block] Property, Plant and Equipment Property, Plant and Equipment, Policy [Policy Text Block] Other current and non-current liabilities Asset Acquisition, Account Payable and Other Current Liabilities Asset Acquisition, Account Payable and Other Current Liabilities New Accounting Pronouncements or Change in Accounting Principle [Table] Accounting Standards Update and Change in Accounting Principle [Table] Tapestry, due 2031 Tapestry Wind LLC due in 2031 [Member] Tapestry Wind LLC due in 2031 [Member] Debt Instrument [Axis] Debt Instrument [Axis] Accretion — expense Asset Retirement Obligation, Accretion Expense Other Liabilities Liabilities, Noncurrent [Abstract] Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Clearway Energy Operating LLC Clearway Energy Operating LLC [Member] Clearway Energy Operating LLC Payments of dividends and distributions Payments of Ordinary Dividends Related Party [Axis] Related Party [Axis] Statement of Stockholders' Equity Schedule of Capitalization, Equity [Line Items] Company's deferred tax assets and liabilities Schedule of Deferred Tax Assets and Liabilities [Table Text Block] Other current assets Asset Acquisition, Other Assets, Current Asset Acquisition, Other Assets, Current Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Black Rock Drop Down Black Rock Drop Down [Member] Black Rock Drop Down Gain (loss) on disposition Gain (Loss) on Disposition of Business Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] Summary of Significant Accounting Policies [Table] 2024 Lessee, Operating Lease, Liability, to be Paid, Year Three Lease Agreements Lease Agreements [Member] Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] 2026 Long-Term Debt, Maturity, Year Five Unrealized gain on derivatives, net of tax Change in unrealized losses included in earnings for derivatives and other financial instruments held as of December 31, Unrealized gain (loss) on derivatives, net of tax Unrealized Gain (Loss) on Derivatives Repayments of convertible debt Repayments of Convertible Debt Cash paid for operating leases Operating Lease, Payments Construction Loans Construction Loans [Member] Escrow amount Escrow Deposit Current assets Asset Acquisition, Current Assets Asset Acquisition, Current Assets 2026 Lessor, Operating Lease, Payment to be Received, Year Five Cash considerations Business Combination, Consideration Transferred Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Agua Caliente Acquisition Agua Caliente [Member] Agua Caliente Long-term debt Long-term Debt, Gross Puma Class B LLC Puma Class B LLC [Member] Puma Class B LLC Marsh Landing Marsh Landing [Member] Marsh Landing [Member] Total assets Assets, Fair Value Disclosure Generational Facilities and District Energy Systems Generational Facilities and District Energy Systems [Member] Generational Facilities and District Energy Systems Income Tax Expense (Benefit), Continuing Operations [Abstract] Income Tax Expense (Benefit), Continuing Operations [Abstract] Total Liabilities and Stockholders' Equity Liabilities and Equity Accrued expenses and other current liabilities Other Accrued Liabilities, Current Unrealized gain on derivatives, net of income tax (expense) benefit of $(3), $— and $1 Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Alta Wind I-V lease financing arrangements, due 2034 and 2035 Alta Wind I-V, lease financing arrangement, due 2034 and 2035 [Member] Alta Wind I-V, lease financing arrangement, due 2034 and 2035 [Member] Total lease payments Lessor, Operating Lease, Payments to be Received 2026 Lessee, Operating Lease, Liability, to be Paid, Year Five Lessee, Lease, Description [Table] Lessee, Lease, Description [Table] Thermal Thermal [Member] Represents Thermal segment of the entity. Derivative [Line Items] Derivative [Line Items] Power generation capacity, megawatts Power Generation Capacity, Megawatts Power Generation Capacity, Megawatts Nature of business Business Description and Basis of Presentation [Text Block] Short-term Debt, Type [Domain] Short-term Debt, Type [Domain] Earnings (Loss) Per Share Earnings Per Share [Text Block] Economic Interest Equity Method Investment, Ownership Percentage Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Other financial instruments, measurement input Other Assets, Measurement Input Other Assets, Measurement Input Cash received from Clearway Energy LLC for the payment of dividends Proceeds from Contributions from Affiliates Commodity Contracts Energy Related Derivative [Member] Minimum Minimum [Member] El Segundo Energy Center, due 2023 El Segundo Energy Center, due 2023 [Member] El Segundo Energy Center, due 2023 [Member] Changes in other working capital Increase (Decrease) in Other Operating Assets and Liabilities, Net Renew DG Holdings LLC Renew DG Holdings LLC [Member] Renew DG Holdings LLC 2023 Lessee, Operating Lease, Liability, to be Paid, Year Two DG-CS Master Borrower LLC DG-CS Master Borrower LLC [Member] DG-CS Master Borrower LLC Less net debt issuance costs Debt Issuance Costs, Net Asset acquisition, consideration transferred, working capital and purchase price adjustments Asset Acquisition, Consideration Transferred, Working Capital and Purchase Price Adjustments Asset Acquisition, Consideration Transferred, Working Capital and Purchase Price Adjustments Interest rate contracts current Interest Rate Contract Current [Member] The current portion of a derivative instrument whose primary underlying risk is tied to the right to receive or pay a sum of money at a given interest rate. Reclassification Reclassification, Comparability Adjustment [Policy Text Block] Preferred stock, authorized (in shares) Preferred Stock, Shares Authorized Proceeds from sale of assets Proceeds from Sale of Productive Assets Cumulative Effect, Period of Adoption [Axis] Cumulative Effect, Period of Adoption [Axis] Percentage of voting interests acquired Business Acquisition, Percentage of Voting Interests Acquired GIP GIP [Member] GIP [Member] 2025 Long-Term Debt, Maturity, Year Four Proceeds from issuance of common stock Stock Issued During Period, Value, New Issues Audit Information [Abstract] Audit Information [Abstract] Acquisitions, net of cash acquired Payments to Acquire Businesses, Net of Cash Acquired Income tax provision from continuing operations Schedule of Components of Income Tax Expense (Benefit) [Table Text Block] Tax Equity Arrangements Tax Equity Arrangements, Policy [Policy Text Block] Tax Equity Arrangements, Policy [Policy Text Block] Payment of dividends Payments of Ordinary Dividends, Common Stock Fair Value, Inputs, Level 3 Fair Value, Inputs, Level 3 [Member] Acquisition of noncontrolling interest Business Combination, Acquisition of Less than 100 Percent, Noncontrolling Interest, Fair Value Gen Conn Gen Conn Energy LLC [Member] Represents the information pertaining to GenConn Energy LLC. Sale-Leaseback Arrangements Lessee, Leases [Policy Text Block] Maturity - December 21, 2028 Maturity - December 21, 2028 [Member] Maturity - December 21, 2028 Investment in consolidated entity Payments to Acquire Interest in Subsidiaries and Affiliates 2025 Lessor, Operating Lease, Payment to be Received, Year Four Letters of credit outstanding Letters of Credit Outstanding, Amount Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Total other expense, net Nonoperating Income (Expense) Other Effective Income Tax Rate Reconciliation, Tax Contingency, Other, Amount Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Commitments and Contingencies Commitments and Contingencies Non-current assets Assets, Noncurrent Accumulated other comprehensive loss Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Emerging Growth Company Entity Emerging Growth Company Rosie Class B LLC Rosie Class B LLC [Member] Rosie Class B LLC Proceeds from debt Proceeds from Debt, Net of Issuance Costs Other Other Acquisitions [Member] Other Acquisitions Changes in prepaid and accrued liabilities for tolling agreements Changes in Prepaid and Accrued Capacity Payments Changes in Prepaid and Accrued Capacity Payments Development costs Costs Incurred, Development Costs Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward] Derivatives used in Net Investment Hedge, Net of Tax [Roll Forward] Payments of debt issuance costs Payments of Debt Issuance Costs Proceeds from energy center notes Proceeds from Issuance of Debt Disposal Group Classification [Axis] Disposal Group Classification [Axis] Clearway Energy, Inc. Clearway Energy, Inc. [Member] Clearway Energy, Inc. [Member] Auditor Name Auditor Name Cover page. Cover [Abstract] Total operating costs and expenses Costs and Expenses Retained earnings, undistributed earnings from equity method investees Retained Earnings, Undistributed Earnings from Equity Method Investees South Trent South Trent [Member] South Trent [Member] Less imputed interest Lessee, Operating Lease, Liability, Undiscounted Excess Amount NIMH Solar LLC Financing Arrangement NIMH Solar LLC Financing Arrangement [Member] NIMH Solar LLC Financing Arrangement SERC SERC [Member] SERC Distributions and returns of capital to CEG, NRG, net of contributions, cash Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders, Cash Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders, Cash 2020 ATM Program 2020 ATM Program [Member] 2020 ATM Program Borrego Borrego [Member] Borrego 2024 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Three Chestnut Borrower, LLC Chestnut Borrower, LLC [Member] Chestnut Borrower, LLC Income allocation percentage Income Allocation Percentage Income Allocation Percentage Financial Instrument [Axis] Financial Instrument [Axis] Reductions to fixed assets for accrued capital expenditures Additions (reductions) to fixed assets for accrued capital expenditures Additions (reductions) to fixed assets for accrued capital expenditures Total assets acquired Asset Acquisition, Assets Acquired Asset Acquisition, Assets Acquired Investments in consolidated affiliates Investment in Consolidated Subsidiaries Investment in Consolidated Subsidiaries Payments to fund project reserve accounts Payments to Fund Project Reserve Accounts Payments to Fund Project Reserve Accounts Reported Value Measurement Reported Value Measurement [Member] Tax Equity and Cash Equity Investors Tax Equity and Cash Equity Investors [Member] Tax Equity and Cash Equity Investors Due to related party Due to Affiliate Net assets acquired less noncontrolling interests Net assets acquired less noncontrolling interests Business Combination, Recognized Identifiable Assets Acquired, Goodwill, and Liabilities Assumed, Less Noncontrolling Interest Operating Costs and Expenses Operating Costs and Expenses [Abstract] Common Stock Common Stock [Member] Operating Income Operating income (loss) Operating Income (Loss) Short-term lease liability - operating leases Operating Lease, Liability, Current Cash Equity Investor Cash Equity Investor [Member] Cash Equity Investor 2023 Finite-Lived Intangible Asset, Expected Amortization, Year Two Hedging Designation [Axis] Hedging Designation [Axis] Power Generation Facilities, Type [Domain] Power Generation Facilities, Type [Domain] Listing of power generation facilities included in the entity's total global generation portfolio. Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value 2031 Senior Notes Senior Notes, 3 Point 750 Percent, Due 2031 [Member] Senior Notes, 3 Point 750 Percent, Due 2031 Depreciation expense Depreciation Depreciation Wind Global LLC Wind Global LLC [Member] Wind Global LLC [Member] Mesquite Star HoldCo LLC Mesquite Star HoldCo LLC [Member] Mesquite Star HoldCo LLC Impairment losses Asset Impairment Charges Operating Lease, Liability, Current, Statement of Financial Position [Extensible List] Operating Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration] Notional amount Derivative, Notional Amount Rate Change Effective Income Tax Rate Reconciliation, Change in Enacted Tax Rate, Amount Capital Unit, Class B Capital Unit, Class B [Member] Buckthorn Solar Buckthorn Solar [Member] Buckthorn Solar [Member] Rattlesnake Class B LLC Credit Facility Rattlesnake Class B LLC Credit Facility [Member] Rattlesnake Class B LLC Credit Facility Lighthouse Renewable Holdco 2 LLC Lighthouse Renewable Holdco 2 LLC [Member] Lighthouse Renewable Holdco 2 LLC Capital expenditures Payments to Acquire Property, Plant, and Equipment Property, Plant and Equipment Property, Plant and Equipment [Member] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Asset Retirement Obligation, Roll Forward Analysis [Roll Forward] Limited liability company (LLC) or limited partnership (LP), members or limited partners, voting interest Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Voting Interest Limited Liability Company (LLC) or Limited Partnership (LP), Members or Limited Partners, Voting Interest Contributions from CEG, NRG, net of distributions, non-cash Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders, Non-cash Noncontrolling Interest, Decrease from Distributions to Noncontrolling Interest Holders, Non-cash Total Liabilities Liabilities Liabilities Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest Accumulated Net Gain (Loss) from Cash Flow Hedges Including Portion Attributable to Noncontrolling Interest [Member] Long-term debt Asset Acquisition, Long-term Debt Asset Acquisition, Long-term Debt 2022 Finite-Lived Intangible Asset, Expected Amortization, Year One Renewables Renewables [Member] Renewables [Member] DGPV Funds DGPV Funds [Member] DGPV Funds Measurement Input Type [Axis] Measurement Input Type [Axis] Gross consideration for asset acquisition Asset Acquisition, Consideration, Gross Asset Acquisition, Consideration, Gross Consolidation Items [Axis] Consolidation Items [Axis] Additional equity method investment interests acquired Equity Method Investment, Additional Ownership Acquired Equity Method Investment, Additional Ownership Acquired Common stock, shares issued (in shares) Common Stock, Shares, Issued Preferred stock, issued (in shares) Preferred Stock, Shares Issued Maturity - December 31, 2030 Maturity - December 31, 2030 [Member] Maturity - December 31, 2030 [Member] Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Desert Sunlight Desert Sunlight [Member] Desert Sunlight [Member] Other revenues Products And Services, Other [Member] Products And Services, Other [Member] Entity Address, City or Town Entity Address, City or Town Capital Unit, Class A Capital Unit, Class A [Member] Loss on debt extinguishment Loss on debt extinguishment Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Borrower leverage ratio Debt Instrument, Covenant, Amended and Restated Credit Agreement, Borrower Leverage Ratio Debt Instrument, Covenant, Amended and Restated Credit Agreement, Borrower Leverage Ratio Acquisition of Drop Down Assets, net of cash acquired Payment to Acquire Business under Common Control Payment to Acquire Business under Common Control Equity method investment removed Asset Acquisition, Equity Method Investment Removed Asset Acquisition, Equity Method Investment Removed Debt instrument, repurchase amount Debt Instrument, Repurchase Amount Balance Sheet Location [Axis] Balance Sheet Location [Axis] Derivative instruments Derivative Asset, Noncurrent Measurement Frequency [Domain] Measurement Frequency [Domain] Interest expense Interest expense, net Interest expense Interest Expense Deferred Deferred Income Tax Expense (Benefit), Continuing Operations [Abstract] Less: Contract amortization Capitalized Contract Cost, Amortization Accumulated deficit Retained Earnings (Accumulated Deficit) Spring Canyon III Spring Canyon III [Member] Spring Canyon III [Member] Balance as of December 31, 2020 Balance as of December 31, 2021 Asset Retirement Obligation Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Equity method investments Equity Method Investments [Table Text Block] Entity Filer Category Entity Filer Category Outstanding borrowings Line of Credit Facility, Fair Value of Amount Outstanding Schedule of gains and losses related to Company's derivatives Derivative Instruments, Gain (Loss) [Table Text Block] Estimate of Fair Value Measurement Estimate of Fair Value Measurement [Member] Payments for the revolving credit facility Payments for the revolving credit facility Repayments of Lines of Credit Langford Langford [Member] Langford Facilities and equipment Support Equipment and Facilities [Member] Mesquite Star Tax Equity Holdco LLC Mesquite Star Tax Equity Holdco LLC [Member] Mesquite Star Tax Equity Holdco LLC Finite-Lived Intangible Assets by Major Class [Axis] Finite-Lived Intangible Assets by Major Class [Axis] Total Stockholders' Equity Beginning balance Ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Amendment Flag Amendment Flag Proceeds from issuance of long-term debt Proceeds from Issuance of Long-term Debt Equity Components [Axis] Equity Components [Axis] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] SEC Schedule, 12-09, Movement in Valuation Allowances and Reserves [Roll Forward] Avra Valley Avra Valley [Member] Avra Valley [Member] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Sale of Stock [Domain] Sale of Stock [Domain] Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Asset Acquisition [Table] Asset Acquisition [Table] Inventory Inventory, Net Segment reporting information Schedule of Segment Reporting Information, by Segment [Table Text Block] Net assets less noncontrolling interests Net Assets Kawailoa Solar Project Kawailoa Solar Project [Member] Kawailoa Solar Project [Member] U.S. Federal Deferred Federal Income Tax Expense (Benefit) Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Thereafter Lessee, Operating Lease, Liability, to be Paid, after Year Five Rosie Target Co LLC Rosie TargetCo LLC [Member] Rosie TargetCo LLC After Third Party Anniversary of Closing After Third Party Anniversary of Closing [Member] After Third Party Anniversary of Closing Derivative liability, measurement input Derivative Liability, Measurement Input Energy and Capacity Revenue Lessor Revenue [Table Text Block] Lessor Revenue [Table Text Block] Carlsbad Energy Holdings LLC, due 2038 Carlsbad Holdco Notes, 2038 [Member] Carlsbad Holdco Notes, 2038 [Member] Change in deferred income taxes Increase (Decrease) in Income Taxes Losses expected to be realized from OCL during the next 12 months, income tax benefit Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Tax The estimated tax impact of existing gains or losses on cash flow hedges, at the reporting date, which are expected to be reclassified to earnings within the next 12 months. Product and Service [Axis] Product and Service [Axis] Par value - preferred stock (in usd per share) Preferred Stock, Par or Stated Value Per Share Entity Public Float Entity Public Float Documents Incorporated by Reference Documents Incorporated by Reference [Text Block] Discontinued Operations, Disposed of by Sale Discontinued Operations, Disposed of by Sale [Member] Statement [Line Items] Statement [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] PG&E PG&E [Member] PG&E [Member] Chestnut Borrower Credit Agreement Chestnut Borrower Credit Agreement [Member] Chestnut Borrower Credit Agreement Fair value within the derivative instrument valuation on the balance sheets Schedule of Derivatives Instruments Statements of Financial Performance and Financial Position, Location [Table Text Block] Elkhorn Ridge Elkhorn Ridge [Member] Elkhorn Ridge Debt Disclosure [Abstract] Debt Disclosure [Abstract] Accounts payable — affiliates Due to Affiliate, Current Accounts receivable — affiliates Due from Affiliate, Current Property, Plant and Equipment, Type [Axis] Long-Lived Tangible Asset [Axis] Asset purchase from affiliate Payments to Acquire Assets from Affiliate Payments to Acquire Assets from Affiliate Valuation allowance Deferred Tax Assets, Valuation Allowance Net assets acquired less noncontrolling interest Net assets acquired less noncontrolling interest Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Current liabilities held-for-sale Disposal Group, Including Discontinued Operation, Liabilities, Current Period [Axis] Period [Axis] Period [Axis] Corporate Corporate, Non-Segment [Member] Customer [Axis] Customer [Axis] CVSR, due 2037 CVSR Financing Agreement [Member] CVSR Financing Agreement [Member] Document Annual Report Document Annual Report Forecast Forecast [Member] Losses expected to be realized from OCL during the next 12 months, net of income tax benefit of $2 Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months Production tax credits, including prior year true-up Effective Income Tax Rate Reconciliation, Deduction, Qualified Production Activity, Amount Commodity contracts long-term Commodity Contract Long-Term [Member] Commodity Contract Long-Term [Member] Proceeds from the issuance of common stock Proceeds from Issuance of Common Stock Total Assets Total Assets Total Assets Assets Rattlesnake Drop Down Rattlesnake Flat, LLC [Member] Rattlesnake Flat, LLC Partnership interest acquisition Payments to Acquire Limited Partnership Interests Shareholders Shareholders [Member] Shareholders [Member] Interest paid, net of amount capitalized Interest Paid, Excluding Capitalized Interest, Operating Activities Non-controlling Interest Noncontrolling Interest [Member] Mark-to-market for economic hedges Revenue, Mark-to-market Hedging Activities Revenue, Mark-to-market Hedging Activities Derivative instruments Asset Acquisition, Derivative Instrument, Notional Amount Asset Acquisition, Derivative Instrument, Notional Amount Derivative Contract [Domain] Derivative Contract [Domain] Total other liabilities Non-current liabilities Liabilities, Noncurrent Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Cumulative Effect, Period of Adoption [Domain] Cumulative Effect, Period of Adoption [Domain] Net Cash Provided by Operating Activities Net Cash Used in Operating Activities Net Cash Provided by (Used in) Operating Activities Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Schedule of long-term debt Schedule of Debt [Table Text Block] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Schedule of Long-term Debt Instruments [Table] Schedule of Long-term Debt Instruments [Table] Net amount Derivative Asset, Fair Value, Amount Offset Against Collateral Net Of Derivative Liability, Fair Value, Amount Offset Against Collateral Derivative Asset, Fair Value, Amount Offset Against Collateral Net Of Derivative Liability, Fair Value, Amount Offset Against Collateral Post-Flip Point Post-Flip Point [Member] Post-Flip Point [Member] Earnings per weighted average common share - diluted (in dollars per share) Earnings Per Share, Diluted Weighted average number of shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Segments [Domain] Segments [Domain] Zephyr Oahu Partnership LLC Zephyr Oahu Partnership LLC [Member] Zephyr Oahu Partnership LLC [Member] Amortization of financing costs and debt discounts Amortization of Debt Issuance Costs and Discounts AWAM AWAM [Member] AWAM [Member] 2023 Unrecorded Unconditional Purchase Obligation, to be Paid, Year Two Investment in consolidated subsidiaries Investments in and Advance to Affiliates, Subsidiaries, Associates, and Joint Ventures Maturity - October 31, 2040 Maturity - October 31, 2040 [Member] Maturity - October 31, 2040 [Member] Intangible assets, net Intangible Assets, Net (Excluding Goodwill) Comprehensive Income (Loss) Attributable to Clearway Energy, Inc. Comprehensive Income (Loss), Net of Tax, Attributable to Parent Other Comprehensive Income, net of tax Other Comprehensive Income (Loss), Net of Tax [Abstract] Collateral Amount Debt Instrument, Amended and Restated Credit Agreement, Collateral Amount Debt Instrument, Amended and Restated Credit Agreement, Collateral Amount Lighthouse Renewable Holdco LLC Lighthouse Renewable Holdco LLC [Member] Lighthouse Renewable Holdco LLC Debt Issuance Costs Debt, Policy [Policy Text Block] Deferred income taxes Deferred Income Tax Liabilities, Net Loans Payable Loans Payable [Member] Derivative instruments Derivative Liability, Noncurrent Business Acquisition, Acquiree [Domain] Business Acquisition, Acquiree [Domain] Alta TE Holdco Alta X and XI TE Holdco [Member] Alta X and XI TE Holdco [Member] Maturity - May 15, 2031 Maturity - May 15, 2031 [Member] Maturity - May 15, 2031 [Member] DGPV Holdco 1 and 2 DGPV Holdco 1 and 2 [Member] DGPV Holdco 1 and 2 Percent of financial instruments using level 3 fair value inputs Percent of Other Financial Instrument Liabilities Using Level 3 Fair Value Inputs Percent of Other Financial Instrument Liabilities Using Level 3 Fair Value Inputs Reconciliation of the U.S. federal statutory rate to the Company's effective rate Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Kawailoa Partnership Kawailoa Partnership [Member] Kawailoa Partnership [Member] Variable Interest Entity, Primary Beneficiary Variable Interest Entity, Primary Beneficiary [Member] Accounts payable — trade Accounts Payable, Current Depreciation, amortization and accretion Depreciation, Depletion and Amortization Assets and liabilities measured and recorded at fair value Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Dividends, Common Stock Dividends, Common Stock Schedule of variable interest entities Schedule of Variable Interest Entities [Table Text Block] Reclassified to held for sale Reclassified to Held for Sale [Member] Reclassified to Held for Sale Accumulated Other Comprehensive Loss AOCI Attributable to Parent AOCI Attributable to Parent [Member] Total other assets Other current and non-current assets Other Assets Common stock, shares outstanding (in shares) Common Stock, Shares, Outstanding Financial Instruments [Domain] Financial Instruments [Domain] Maturity - June 30, 2023 Maturity - June 30, 2023 [Member] Maturity - June 30, 2023 [Member] Alta Wind Asset Management LLC, due 2031 Alta Wind Asset Management LLC, Due 2031 [Member] Alta Wind Asset Management LLC, Due 2031 Schedule of dividends paid Schedule of Dividends Paid [Table Text Block] Tabular disclosure of all or some of the information related to dividends paid Common Class B Common Class B [Member] Repayment of debt, acquired in asset acquisition Repayment of Debt, Acquired in Asset Acquisition Repayment of Debt, Acquired in Asset Acquisition Net proceeds from disposition Proceeds from Divestiture of Businesses Entity Central Index Key Entity Central Index Key Deferred Tax Assets, Gross [Abstract] Deferred Tax Assets, Gross [Abstract] Long-Term Debt, Current Long Term Debt Current [Member] Long Term Debt Current [Member] Total lease cost Lease, Cost Customer Relationships Customer Relationships [Member] DGPV Holdco 3 DGPV Funds DGPV Holdco 3 [Member] DGPV Holdco 3 [Member] Asset impairments Asset Impairment Charges [Text Block] Operating Funds Operating Funds [Member] Operating Funds [Member] Repowering Partnership II LLC Repowering Partnership II LLC [Member] Repowering Partnership II LLC [Member] DGPV 4 Borrower LLC DGPV 4 Borrower LLC [Member] DGPV 4 Borrower LLC Property, plant and equipment Property, Plant and Equipment Disclosure [Text Block] Outstanding debt at time of acquisition Business Combination, Recognized Identifiable Assets Acquired and Liabilities Assumed, Noncurrent Liabilities, Long-term Debt Other non-current liabilities Other non-current liabilities Other Liabilities, Noncurrent Condensed Financial Information Disclosure [Abstract] Condensed Financial Information Disclosure [Abstract] Derivative instruments, assets Derivative Asset, Fair Value, Gross Liability Debt Instrument [Line Items] Debt Instrument [Line Items] Trading Symbol Trading Symbol Net amount Derivative Asset Clearway Energy LLC Clearway Energy LLC [Member] Clearway Energy LLC [Member] Related Party Transaction [Domain] Related Party Transaction [Domain] Condensed Financial Statements, Captions [Line Items] Condensed Income Statements, Captions [Line Items] Duquesne, due 2059 (d) Duquesne Due 2059 [Member] Duquesne Due 2059 [Member] Derivative instruments, liabilities Derivative Liability, Fair Value, Gross Asset Disposition, property, plant and equipment, percent Disposal Group, Including Discontinued Operations, Property, Plant and Equipment, Percent Disposal Group, Including Discontinued Operations, Property, Plant and Equipment, Percent Reclassification of Cash to Assets Held-for-Sale Reclassification of Cash to Assets Held for Sale Reclassification of Cash to Assets Held for Sale ITC Bridge Loan ITC Bridge Loan [Member] ITC Bridge Loan [Member] Avenal Avenal [Member] Avenal [Member] Total long-term debt Long-term Debt, Excluding Current Maturities Income tax benefit threshold Income Taxes, Threshold Percentage The percentage that is likely to be realized upon settlement which is used as a basis of recording unrecognized tax benefits for income tax positions that have surpassed the more-likely-than-not threshold. General and administrative Share-based Payment Arrangement, Expense Noncontrolling interest, ownership percentage by noncontrolling owners Noncontrolling Interest, Ownership Percentage by Noncontrolling Owners NIMH Solar, due 2024 NIMH Solar, due 2024 [Member] NIMH Solar, due 2024 Net Loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Net income (loss) Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Construction in Progress Construction in Progress [Member] Common Class A Common Class A [Member] Cash, Cash Equivalents and Restricted Cash at Beginning of Period Cash, Cash Equivalents and Restricted Cash at End of Period Cash, cash equivalents and restricted cash shown in the consolidated statements of cash flows Cash, Cash Equivalents, Restricted Cash and Restricted Cash Equivalents Summary of swaps related to the Company's project level debt Schedule of Derivative Instruments [Table Text Block] Shares of common stock sold Sale of Stock, Number of Shares Issued in Transaction Other Ownership Interests, Name [Domain] Other Ownership Interests, Name [Domain] Third-Party Tax Equity Investor Third-Party Tax Equity Investor [Member] Third-Party Tax Equity Investor Par value - common stock (in usd per share) Common Stock, Par or Stated Value Per Share Current Assets Assets, Current [Abstract] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Other Proceeds from (Payments for) Other Financing Activities Net carrying amount beginning balance Net carrying amount ending balance Finite-Lived Intangible Assets, Gross Rosie Class B LLC 2027 Rosie Class B LLC 2027 [Member] Rosie Class B LLC 2027 Summary of the components of the Company's intangible assets subject to amortization Schedule of Finite-Lived Intangible Assets [Table Text Block] Asset Impairments Impairment or Disposal of Long-Lived Assets, Policy [Policy Text Block] Condensed Balance Sheet Statement [Table] Condensed Balance Sheet Statement [Table] Maturity - May 31, 2023 Maturity - May 31, 2023 [Member] Maturity - May 31, 2023 [Member] Purpose [Domain] Purpose [Domain] Purpose Right-of-use assets Asset Acquisition, Right-of-use asset Asset Acquisition, Right-of-use asset Other comprehensive income Mark-to-market of cash flow hedge accounting contracts Other Comprehensive Income (Loss), Net of Tax Fair Value, Measurements, Recurring Fair Value, Recurring [Member] Subsidiary or Equity Method Investee [Line Items] Subsidiary or Equity Method Investee [Line Items] Stockholders' Equity Stockholders' Equity Note Disclosure [Text Block] Bridge Loan, Due 2022 Bridge Loan, Due 2022 [Member] Bridge Loan, Due 2022 Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent Accumulated Gain (Loss), Net, Cash Flow Hedge, Parent [Member] Measurement Basis [Axis] Measurement Basis [Axis] 2026 Finite-Lived Intangible Asset, Expected Amortization, Year Five Fair Value of Financial Instruments Fair Value of Financial Instruments, Policy [Policy Text Block] Auditor Firm ID Auditor Firm ID Investments in unconsolidated affiliates Payments to acquire equity method investments Payments to Acquire Equity Method Investments Net Cash Provided by (Used in) Investing Activities Net Cash Provided by (Used in) Investing Activities Partnership state basis Effective Income Tax Rate Reconciliation, Partnership State Basis Effective Income Tax Rate Reconciliation, Partnership State Basis Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Number of projects Number of Projects Number of Projects Class of Stock [Domain] Class of Stock [Domain] Payments to acquire businesses, gross Payments to Acquire Businesses, Gross Fair value assets, measured on recurring basis, valuation techniques, impact of credit reserve to fair value Fair Value Assets, Measured on Recurring Basis, Valuation Techniques, Impact of Credit Reserve to Fair Value This element represents the increase (decrease) to fair value from applying a credit reserve to reflect credit risk on the valuation techniques used to measure fair value of Level 2 and 3 derivative contracts which is calculated based on credit default swaps. Second Year through Flip Point Second Year through Flip Point [Member] Second Year through Flip Point [Member] Acquisitions DGPV Holdco Entities [Member] DGPV Holdco Entities Bridge credit agreement, borrowing amount Line of Credit Facility, Maximum Borrowing Capacity Maturity - November 30, 2030 Maturity - November 30, 2030 [Member] Maturity - November 30, 2030 [Member] Segment Reporting Segment Reporting Information [Line Items] Leasehold Rights Leasehold Rights [Member] Leasehold Rights [Member] Percentage equity interests acquired Asset Acquisition, Percentage Equity Interests Acquired Asset Acquisition, Percentage Equity Interests Acquired Ownership [Domain] Ownership [Domain] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Maturity - June 30, 2028 Maturity - June 30, 2028 [Member] Maturity - June 30, 2028 [Member] Percentage of ownership Percentage of Ownership Percentage of Ownership Current assets held-for-sale Assets Held-for-sale, Not Part of Disposal Group, Current Prepaid Expenses and Other Current Assets Prepaid Expenses and Other Current Assets [Member] Offsetting of derivatives by counterparty master agreement level and collateral received or paid Offsetting Liabilities [Table Text Block] Schedule of shares sold under the ATM programs Schedule of Sale of Stock by Subsidiary or Equity Method Investee Disclosure [Table Text Block] Non-cash adjustment for change in tax basis Adjustments to Additional Paid in Capital, Other Derivative liabilities Derivative liabilities, gross Derivative Liability, Fair Value, Gross Liability Kawailoa Solar Holdings LLC Kawailoa Solar Holdings LLC [Member] Kawailoa Solar Holdings LLC [Member] Tax at 21% Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Preferred Stock Preferred Stock [Member] Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net Balance at beginning of period Balance at end of period SEC Schedule, 12-09, Valuation Allowances and Reserves, Amount Oahu Solar Partnership Oahu Solar Partnership [Member] Oahu Solar Partnership [Member] 2024 Lessor, Operating Lease, Payment to be Received, Year Three Capital loss carryforwards Deferred Tax Assets, Capital Loss Carryforwards Write off of deferred debt issuance cost Write off of Deferred Debt Issuance Cost Payments for asset acquisition Payments for Asset Acquisition Payments for Asset Acquisition Inventory Inventory, Policy [Policy Text Block] Thereafter Unrecorded Unconditional Purchase Obligation, to be Paid, after Year Five State net operating loss carryforwards Deferred Tax Assets, Operating Loss Carryforwards, State and Local Blythe Blythe [Member] Blythe [Member] Less discounts Debt Instrument, Unamortized Discount Schedule of Finite-Lived Intangible Assets [Table] Schedule of Finite-Lived Intangible Assets [Table] Long-term Debt Long-term Debt [Text Block]