Reclassified from accumulated OCI (OCL) to income due to realization of previously deferred amounts Reclassification from Accumulated Other Comprehensive Income, Current Period, Net of Tax Less: Lease revenue Operating Lease, Lease Income Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Net Loss Net Loss Net Loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Related Party Transactions [Abstract] Related Party Transactions [Abstract] Long-term debt, including current portion — affiliate Long-term debt Long-Term Debt, Gross Entity Address, Postal Zip Code Entity Address, Postal Zip Code Derivative asset/liability measurement input Derivative Asset (Liability) Net, Measurement Input DG-CS Master Borrower LLC, due 2040 DG-CS Master Borrower LLC, Due 2040 [Member] DG-CS Master Borrower LLC, Due 2040 Valuation Technique, Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Debt Instrument [Axis] Debt Instrument [Axis] Pinnacle Repowering TE Holdco LLC Pinnacle Repowering TE HoldCo LLC [Member] Pinnacle Repowering TE HoldCo LLC Expenses from transactions with related party Related Party Transaction, Expenses from Transactions with Related Party Maximum borrowing capacity Line of Credit Facility, Maximum Borrowing Capacity Receivable [Domain] Receivable [Domain] Current portion of long-term debt — external External Current Debt External Current Debt CVSR Holdco Notes, due 2037 CVSR Holdco due 2037 [Member] CVSR Holdco due 2037 [Member] Walnut Creek, due 2023 Walnut Creek Energy, LLC, due in 2023 [Member] Walnut Creek Energy, LLC, due in 2023 [Member] Conventional Generation Conventional Generation [Member] Conventional Generation [Member] Financial Instruments [Domain] Financial Instruments [Domain] Fair Value Measurement [Domain] Fair Value Measurement [Domain] Debt instrument, basis spread on variable rate Debt Instrument, Basis Spread on Variable Rate Net loss Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Rounding Adjustments Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Rounding Adjustments Other Payments for (Proceeds from) Other Investing Activities Statistical Measurement [Domain] Statistical Measurement [Domain] Underlying Asset Class [Axis] Underlying Asset Class [Axis] Other Other Debt [Member] Represents other debt instruments not separately accounted disclosed. Debt instrument, interest rate, stated percentage Debt Instrument, Interest Rate, Stated Percentage Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Schedule of Derivative Gains and Losses Derivative Instruments, Gain (Loss) [Table Text Block] Contributions from noncontrolling interests, net of distributions Proceeds from (Payments to) Noncontrolling Interests Carlsbad Holdco, LLC, due 2038 Carlsbad Holdco, due 2038 [Member] Carlsbad Holdco, due 2038 Repayments of debt Repayments of Debt Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Fair Value, Net Derivative Asset (Liability), Recurring Basis, Unobservable Input Reconciliation, Gain (Loss), Statement of Income or Comprehensive Income [Extensible Enumeration] Marsh Landing, due 2023 Marsh Landing Term Loan Facility [Member] Marsh Landing Term Loan Facility [Member] Net Loss Attributable to Clearway Energy LLC Net Income (Loss) Attributable to Parent Measurement Input Type [Domain] Measurement Input Type [Domain] Restricted cash Asset Acquisition, Restricted Cash Asset Acquisition, Restricted Cash Subsequent Event Type [Axis] Subsequent Event Type [Axis] Distributions to CEG of escrowed amounts Payments of Distributions to Affiliates Equity Component [Domain] Equity Component [Domain] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Nature of Business [Line Items] Basis of Presentation [Line Items] Basis of Presentation [Line Items] 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. Assets, Fair Value Disclosure Assets, Fair Value Disclosure Ownership [Axis] Ownership [Axis] Capistrano Wind Portfolio, due 2029 and 2031 Capistrano Wind Portfolio, due 2029 and 2031 [Member] Capistrano Wind Portfolio, due 2029 and 2031 Energy Revenue Energy Revenue [Member] Energy Revenue [Member] Investment, Name [Domain] Investment, Name [Domain] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Related Party [Domain] Related Party [Domain] Hedging Designation [Domain] Hedging Designation [Domain] Long-term debt, including current portion — external Long-Term Debt and Lease Obligation, Including Current Maturities Commodity contracts current Commodity Contract Current [Member] The current portion of a derivative instrument whose primary underlying risk is tied to commodity prices. Capacity Revenue Capacity Revenue [Member] Capacity Revenue [Member] Derivative Instrument [Axis] Derivative Instrument [Axis] Interest rate contracts long-term Interest Rate Contract Non Current [Member] The noncurrent 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. Beginning balance Ending balance Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Total other liabilities Liabilities, Noncurrent Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Entity Address, State or Province Entity Address, State or Province Summary of 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] Contributions from noncontrolling interests, net of distributions, cash Noncontrolling Interest, Increase from Sale of Parent Equity Interest Basis of Presentation Basis of Presentation and Significant Accounting Policies [Text Block] Net Cash Provided by Operating Activities Net Cash Provided by (Used in) Operating Activities Derivative asset Net amount Derivative Asset Settlements Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability, Settlements Buckthorn Renewables, LLC Buckthorn Renewables, LLC [Member] Buckthorn Renewables, LLC Related Party Transaction [Domain] Related Party Transaction [Domain] Other Income (Expense) Costs and Expenses [Abstract] Agua Caliente Solar LLC, due 2037 Agua Caliente Solar LLC, Due 2037 [Member] Agua Caliente Solar LLC, Due 2037 Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Legal Entity [Axis] Legal Entity [Axis] Long-term debt — external Total long-term debt Long-Term Debt, Excluding Current Maturities Derivative, nonmonetary notional amount Derivative, Nonmonetary Notional Amount, Energy Measure Schedule of Cash and Cash Equivalents [Table] Schedule of Cash and Cash Equivalents [Table] Total Liabilities Total liabilities Liabilities Cash Flows from Investing Activities Net Cash Provided by (Used in) Investing Activities [Abstract] Position [Axis] Position [Axis] Number of wholly owned subsidiaries Number of Wholly Owned Subsidiaries Number of Wholly Owned Subsidiaries Derivative instruments Derivative Liability, Current Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Revolving Credit Facility Revolving Credit Facility [Member] Redeemable noncontrolling interest in subsidiaries Balance at December 31, 2022 Balance at March 31, 2023 Temporary Equity, Carrying Amount, Including Portion Attributable to Noncontrolling Interests Document Type Document Type SOFR Secured Overnight Financing Rate (SOFR) Overnight Index Swap Rate [Member] Long-term Debt Long-Term Debt [Text Block] Alta TE Holdco LLC Alta TE Holdco LLC [Member] Alta X and XI TE Holdco [Member] Contributions from (distributions to) CEG, net Proceeds From (Distributions for) Contributions from Affiliates Proceeds From (Distributions for) Contributions from Affiliates 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 Return of investment from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution, Return of Capital Segments [Axis] Business Segments [Axis] Segments [Axis] Amortization of intangibles 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. Asset Acquisition [Axis] Asset Acquisition [Axis] Product and Service [Domain] Product and Service [Domain] Entity Shell Company Entity Shell Company Common Class B Common Class B [Member] Total gains (losses) for the period included in earnings Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Gain (Loss) Included in Earnings Measurement Input, Commodity Forward Price Measurement Input, Commodity Forward Price [Member] Nature of Business [Table] Nature of Business [Table] Nature of Business [Table] Schedule of Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid Offsetting Liabilities [Table Text Block] Financial Instrument [Axis] Financial Instrument [Axis] Rattlesnake TE Holdco LLC Rattlesnake TE Holdco LLC [Member] Rattlesnake TE Holdco LLC Affiliated Entity Affiliated Entity [Member] Consolidation Items [Domain] Consolidation Items [Domain] Subsequent Event Subsequent Event [Member] Schedule of Contract with Customer, Asset and Liability Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Document Period End Date Document Period End Date Common Class C Common Class C [Member] Generational Facilities and District Energy Systems Generational Facilities and District Energy Systems [Member] Generational Facilities and District Energy Systems Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Total Assets Assets Total Assets Assets Debt Disclosure [Abstract] Debt Disclosure [Abstract] Add premiums Debt Instrument, Unamortized Premium 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] Development costs Costs Incurred, Development Costs Cash and cash equivalents, held at project subsidiaries Other Cash Equivalents, at Carrying Value Less current maturities Long-Term Debt, Current Maturities Net Cash Provided by (Used in) Financing Activities Net Cash Provided by (Used in) Financing Activities Accounting Policies [Abstract] Accounting Policies [Abstract] Thermal Thermal [Member] Represents Thermal segment of the entity. Line of Credit Line of Credit [Member] Power generation capacity, megawatts (over) Power Generation Capacity, Megawatts Power Generation Capacity, Megawatts Members’ Equity Stockholders' Equity Attributable to Parent [Abstract] Prepayments and other current assets Prepaid Expense and Other Assets, Current Segments [Domain] Segments [Domain] Amortization of financing costs and debt discounts Amortization of Debt Issuance Costs and Discounts Long-term debt — affiliate Due to Affiliate Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest Accumulated Foreign Currency Adjustment Including Portion Attributable to Noncontrolling Interest [Member] Transfers of assets under common control Noncontrolling Interest, Decrease from Redemptions or Purchase of Interests Comprehensive Loss Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Related Party Transaction Related Party Transaction [Line Items] Tax Equity Bridge Loan Tax Equity Bridge Loan [Member] Tax Equity Bridge Loan Loss on debt extinguishment Loss on debt extinguishment Gain (Loss) on Extinguishment of Debt Schedule of 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] Schedule of Estimated Carrying Values and Fair Values Fair Value, by Balance Sheet Grouping [Table Text Block] Derivative Contract [Domain] Derivative Contract [Domain] Entity Registrant Name Entity Registrant Name Changes in derivative instruments and amortization of accumulated OCI/OCL Increase (Decrease) in Derivative Assets and Liabilities 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. Alta Wind Realty Investments LLC, due 2031 Alta Wind Realty Investments LLC, Due 2031 [Member] Alta Wind Realty Investments LLC, Due 2031 Entity Address, City or Town Entity Address, City or Town Long-term debt, outstanding Asset Acquisition, Long-term Debt, Outstanding Asset Acquisition, Long-term Debt, Outstanding GIP GIP [Member] GIP [Member] Accumulated OCI (OCL) beginning balance Accumulated OCI (OCL) ending balance Stockholders' Equity, Including Portion Attributable to Noncontrolling Interest Low Minimum Minimum [Member] Total Members’ Equity Balance, beginning of period Balance, end of period Limited Liability Company (LLC) Members' Equity, Including Portion Attributable to Noncontrolling Interest Restricted cash Restricted Cash and Cash Equivalents, Current Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Entity Emerging Growth Company Entity Emerging Growth Company GenConn Gen Conn Energy LLC [Member] Represents the information pertaining to GenConn Energy LLC. Unrealized loss on derivatives and changes in accumulated OCI Change in unrealized gains included in earnings for derivatives and other financial instruments held as of March 31, 2023 Interest Rate Contracts (Interest expense) Unrealized Gain (Loss) on Derivatives Less net debt issuance costs Debt Issuance Costs, Net 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] Transfers of Assets under Common Control Noncontrolling Interest, Transfers of Assets Under Common Control Noncontrolling Interest, Transfers of Assets Under Common Control Investment, Name [Axis] Investment, Name [Axis] Fair Value of Financial Instruments Fair Value Disclosures [Text Block] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Entity File Number Entity File Number Less: Comprehensive loss attributable to noncontrolling interests and redeemable noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Derivative Instruments and Hedging Activities Disclosures [Table] Derivative Instruments and Hedging Activities Disclosures [Table] Summary of Distributions Made to Limited Liability Company (LLC) Member, by Distribution Distributions Made to Limited Liability Company (LLC) Member, by Distribution [Table Text Block] Proceeds from the revolving credit facility Proceeds from Lines of Credit Changes in prepaid and accrued liabilities for tolling agreements Changes in Prepaid and Accrued Capacity Payments Changes in Prepaid and Accrued Capacity Payments Use of Estimates Use of Estimates, Policy [Policy Text Block] LIBOR London Interbank Offered Rate (LIBOR) [Member] Equity Method Investments and Joint Ventures [Abstract] Equity Method Investments and Joint Ventures [Abstract] Total operating revenues Operating revenues Revenues Unrealized (loss) gain on derivatives and changes in accumulated OCI/OCL Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax Clearway Energy, Inc. Clearway Energy, Inc. [Member] Clearway Energy, Inc. [Member] Other current and non-current liabilities Asset Acquisition, Liabilities, Other Current and Noncurrent Asset Acquisition, Liabilities, Other Current and Noncurrent Credit Facility [Domain] Credit Facility [Domain] Schedule of Equity Method Investments [Table] Schedule of Equity Method Investments [Table] Corporate Corporate, Non-Segment [Member] Schedule of Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Accounts payable — affiliates Due to Affiliate, Current Total assets acquired Asset Acquisition, Assets Acquired Asset Acquisition, Assets Acquired Long-term lease liabilities Asset Acquisition, Lease Liabilities, Noncurrent Asset Acquisition, Lease Liabilities, Noncurrent Ownership [Domain] Ownership [Domain] Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Entity Interactive Data Current Entity Interactive Data Current Contract amortization Less: Contract amortization Capitalized Contract Cost, Amortization Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Intangible Assets Accumulated Amortization Finite-Lived Intangible Assets, Accumulated Amortization Cash used in changes in other working capital: Increase (Decrease) in Operating Capital [Abstract] Debt Service Obligations Debt Service Obligations [Member] Debt Service Obligations [Member] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Schedule of Asset Acquisition [Line Items] Schedule of Asset Acquisition [Line Items] Schedule of Asset Acquisition Retained Earnings Retained Earnings [Member] Segment Reporting Segment Reporting Information [Line Items] Cash and Cash Equivalents [Line Items] Cash and Cash Equivalents [Line Items] Receivable Type [Axis] Receivable Type [Axis] Class of Stock [Axis] Class of Stock [Axis] Statement [Table] Statement [Table] Document Quarterly Report Document Quarterly Report 2031 Senior Notes Senior Notes, 3 Point 750 Percent, Due 2031 [Member] Senior Notes, 3 Point 750 Percent, Due 2031 Letter of Credit Letter of Credit [Member] Current Assets Assets, Current [Abstract] Long-term lease liabilities Operating Lease, Liability, Noncurrent Cash Distribution Cash Distribution [Member] Schedule of Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Statistical Measurement [Axis] Statistical Measurement [Axis] Asset Acquisition [Domain] Asset Acquisition [Domain] Other Financial Instruments Solar Renewable Energy Credits And Other Financial Instruments [Member] Solar Renewable Energy Credits And Other Financial Instruments 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] Current portion of long-term debt — affiliate Affiliate Current Debt Affiliate Current Debt Related Party Transaction [Axis] Related Party Transaction [Axis] Retained earnings Retained Earnings (Accumulated Deficit) AOCI Including Portion Attributable to Noncontrolling Interest AOCI Including Portion Attributable to Noncontrolling Interest [Member] Accounts receivable — trade Accounts Receivable, after Allowance for Credit Loss, Current Equity Components [Axis] Equity Components [Axis] Contributions from noncontrolling interests, net of distributions Proceeds from Noncontrolling Interests Fair Value, Recurring Fair Value, Recurring [Member] Related Party Transactions Related Party Transactions Disclosure [Text Block] Lighthouse Renewable Holdco 2 LLC Lighthouse Renewable Holdco 2 LLC [Member] Lighthouse Renewable Holdco 2 LLC Document Fiscal Year Focus Document Fiscal Year Focus Cash Flows from Operating Activities Net Cash Provided by (Used in) Operating Activities [Abstract] Statement Statement [Line Items] Voting Interest (as a percentage) 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 Proceeds from the issuance of long-term debt — external Proceeds from Issuance of Other Long-Term Debt Total other expense, net Nonoperating Income (Expense) Variable Rate [Domain] Variable Rate [Domain] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Long-term debt Asset Acquisition, Long-term Debt Asset Acquisition, Long-term Debt Renewables Renewables [Member] Renewables [Member] DGPV Funds DGPV Funds [Member] DGPV Funds Right-of-use assets, net Operating Lease, Right-of-Use Asset Accumulated Other Comprehensive Income AOCI Attributable to Parent [Member] Contributed capital Members' Capital Desert Sunlight Desert Sunlight [Member] Desert Sunlight Accounts receivable, net - Leases Lease Agreements [Member] Sponsor Equity Bridge Loan Sponsor Equity Bridge Loan [Member] Sponsor Equity Bridge Loan Document Transition Report Document Transition Report Viento Funding II, LLC, due 2029 Viento Funding II, LLC Due 2029 [Member] Viento Funding II, LLC Due 2029 Local Phone Number Local Phone Number Operating Income (Loss) Operating income (loss) Operating Income (Loss) Other revenue Products And Services, Other [Member] Products And Services, Other [Member] Recently Adopted Accounting Standards New Accounting Pronouncements, Policy [Policy Text Block] WCEP Holdings, LLC, due 2023 WCEP Holdings LLC, Due 2023 [Member] WCEP Holdings LLC, Due 2023 Acquisition of Drop Down Assets, net of cash acquired Payment to Acquire Business under Common Control Payment to Acquire Business under Common Control Position [Domain] Position [Domain] Total liabilities assumed Asset Acquisition, Liabilities Assumed Asset Acquisition, Liabilities Assumed 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] Rosie Class B LLC, due 2027 Rosie Class B LLC, Due 2027 [Member] Rosie Class B LLC, Due 2027 Deferred income taxes Deferred Income Tax Liabilities, Net Income Statement [Abstract] Income Statement [Abstract] Contributed Capital Additional Paid-in Capital [Member] Document Fiscal Period Focus Document Fiscal Period Focus 2032 Senior Notes Senior Notes, 3 Point 750 Percent, Due 2032 [Member] Senior Notes, 3 Point 750 Percent, Due 2032 Cash and Cash Equivalents Cash and Cash Equivalents, Unrestricted Cash and Cash Equivalents, Policy [Policy Text Block] Derivative [Line Items] Derivative [Line Items] Derivative liability Derivative liability, Net Amount Derivative Liability Property, Plant and Equipment Accumulated Depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Derivative liability, fair value, gross liability Derivative Liabilities Derivative liabilities, gross Derivative Liability, Subject to Master Netting Arrangement, before Offset RENOM RENOM [Member] RENOM [Member] Distributions per Class A, B, C and D unit (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Carrying Amount Reported Value Measurement [Member] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Percent of derivative liabilities using level 3 fair value inputs Percent of Derivative Liabilities Using Level 3 Fair Value Inputs Percent of Derivative Liabilities Using Level 3 Fair Value Inputs Summary of 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] Schedule of Fair Value, Assets and Liabilities Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Operating Segments Operating Segments [Member] Gains expected to be realized from OCI during the next 12 months Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Daggett TargetCo LLC Daggett TargetCo LLC [Member] Daggett TargetCo LLC Oahu Solar Holdings LLC, due 2026 Oahu Solar Holdings LLC, due 2026 [Member] Oahu Solar Holdings LLC, due 2026 [Member] Intercompany Note with Clearway, Inc. Intercompany Note With Clearway Energy, Inc. [Member] Intercompany Note With Clearway Energy, Inc. 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 Less: Net loss attributable to noncontrolling interests and redeemable noncontrolling interests Net Income (Loss) Attributable to Noncontrolling Interest Contingencies Commitments and Contingencies Disclosure [Text Block] Current Liabilities Liabilities, Current [Abstract] Rosie TargetCo LLC Rosie TargetCo LLC [Member] Rosie TargetCo LLC Schedule of Maximum Loss Exposure in Equity Method Investments Equity Method Investments [Table Text Block] Equity investments in affiliates Equity Method Investments Transaction and integration costs Transaction and integration costs Business Combination, Acquisition Related Costs 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] Amendment Flag Amendment Flag Net Cash Used in Investing Activities Net Cash Provided by (Used in) Investing Activities Commodity Contracts Energy Related Derivative [Member] Power Power [Member] Details pertaining to the power, which is considered as a derivative commodity. Other comprehensive (loss) income Mark-to-market of cash flow hedge accounting contracts Other Comprehensive Income (Loss), Net of Tax Comprehensive Loss Attributable to Clearway Energy LLC Comprehensive Income (Loss), Net of Tax, Attributable to Parent Buckthorn Solar, due 2025 Buckthorn Solar, due 2025 [Member] Buckthorn Solar, due 2025 [Member] Acquisitions and Dispositions Mergers, Acquisitions and Dispositions Disclosures [Text Block] Schedule of Segment Reporting Information, by Segment Schedule of Segment Reporting Information, by Segment [Table Text Block] Subtotal non-recourse project-level debt Project Level Debt [Member] Project Level Debt [Member] Entity Current Reporting Status Entity Current Reporting Status Other non-current assets Other Assets, Noncurrent Carlsbad Energy Holdings LLC, due 2038 Carlsbad Energy Holdings LLC, Due 2038 [Member] Carlsbad Energy Holdings LLC, Due 2038 Daggett 3, due 2023 and 2028 Daggett 3, Due 2023 and 2028 [Member] Daggett 3, Due 2023 and 2028 Depreciation, amortization and accretion Depreciation, amortization and accretion Depreciation, Depletion and Amortization Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Intangible assets for power purchase agreements, net Intangible Assets, Power Purchase Agreements Intangible Assets, Power Purchase Agreements Cash distributions to redeemable noncontrolling interests Noncontrolling Interest, Decrease from Distributions to Redeemable Noncontrolling Interest Holders Noncontrolling Interest, Decrease from Distributions to Redeemable Noncontrolling Interest Holders Derivative assets Asset Acquisition, Derivative Assets Asset Acquisition, Derivative Assets Operating Costs and Expenses Operating Costs and Expenses [Abstract] Commodity contracts Commodity Contract [Member] Elkhorn Ridge Elkhorn Ridge [Member] Elkhorn Ridge Borrego, due 2024 and 2038 Borrego, Due 2024 and 2038 [Member] Borrego, Due 2024 and 2038 Counterparty Name [Axis] Counterparty Name [Axis] Derivative [Table] Derivative [Table] Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Net assets acquired Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Schedule of Stock by Class [Table] Schedule of Stock by Class [Table] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Comprehensive income attributable to redeemable noncontrolling interests Comprehensive Income, Net of Tax Portions Attributable to Noncontrolling Redeemable Interest Comprehensive Income, Net of Tax Portions Attributable to Noncontrolling Redeemable Interest Property, plant and equipment, net Property, Plant and Equipment, Net Power Generation Facilities by Type [Domain] Power Generation Facilities by Type [Domain] Power Generation Facilities by Type [Domain] Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net CVSR, due 2037 CVSR Financing Agreement [Member] CVSR Financing Agreement [Member] 2028 Senior Notes 4.75% Senior Notes due 2028 [Member] 4.75% Senior Notes due 2028 Debt Instrument, Redemption, Period [Domain] Debt Instrument, Redemption, Period [Domain] Commodity contracts long-term Commodity Contract Long-Term [Member] Commodity Contract Long-Term [Member] Noncontrolling interest Noncontrolling Interest in Variable Interest Entity Other income, net Other income, net Other Nonoperating Income (Expense) Shareholders Shareholders [Member] Shareholders [Member] Schedule of Related Party Transactions, by Related Party [Table] Schedule of Related Party Transactions, by Related Party [Table] Other Assets Assets, Noncurrent [Abstract] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] High Maximum Maximum [Member] Derivative Instruments and Hedging Activities Disclosures [Line Items] Derivative Instruments and Hedging Activities Disclosures [Line Items] Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Line of credit facility, fair value of amount outstanding Line of Credit Facility, Fair Value of Amount Outstanding Mark-to-market for economic hedges Less: Mark-to-market for economic hedges Revenue, Mark-to-market Hedging Activities Revenue, Mark-to-market Hedging Activities Short Short [Member] Common Class A Common Class A [Member] Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Cash and cash equivalents Cash and cash equivalents Cash and Cash Equivalents, at Carrying Value Total current assets Assets, Current Designated as Hedging Instrument Designated as Hedging Instrument [Member] Oahu Solar LLC Oahu Solar LLC [Member] Oahu Solar Partnership [Member] Entity Small Business Entity Small Business Measurement Basis [Axis] Measurement Basis [Axis] Measurement Frequency [Domain] Measurement Frequency [Domain] Reduction in carrying amount of right-of-use assets Operating Lease, Right-of-Use Asset, Amortization Expense Distribution per Class A, B, C and D unit, delcared (in dollars per share) Common Stock, Dividends, Per Share, Declared Operating Revenues Revenues [Abstract] Intangible assets Finite-Lived Intangible Assets, Net Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] 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 Expected contributions upon substantial completion Proceeds from Noncontrolling Interests, Expected Upon Substantial Completion Proceeds from Noncontrolling Interests, Expected Upon Substantial Completion Long Long [Member] Other financial instruments Other Assets, Fair Value Disclosure Daggett 3 Drop Down Daggett 3 Drop Down [Member] Daggett 3 Drop Down Consolidated Entities [Axis] Consolidated Entities [Axis] Noncontrolling interest Members' Equity Attributable to Noncontrolling Interest Solar Alternative Energy [Member] Distributions from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution Total operating costs and expenses Costs and Expenses Payments for the revolving credit facility Repayments of Lines of Credit Debt Instrument [Line Items] Debt Instrument [Line Items] Business Combination and Asset Acquisition [Abstract] Derivative instruments Derivative Asset, Noncurrent Lighthouse Renewable Holdco LLC Lighthouse Renewable Holdco LLC [Member] Lighthouse Renewable Holdco LLC Accrued interest expense Interest Payable Distributions paid Limited Partners' Capital Account, Distribution Amount Class of Stock [Line Items] Class of Stock [Line Items] Payments of debt issuance costs Payments of Debt Issuance Costs Segment Reporting Segment Reporting Disclosure [Text Block] LIABILITIES AND MEMBERS’ EQUITY Liabilities and Equity [Abstract] Fair Value Estimate of Fair Value Measurement [Member] San Juan Mesa San Juan Mesa [Member] San Juan Mesa Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Inventory Inventory, Net Accounts payable — trade Accounts Payable, Current Other Comprehensive (Loss) Income Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Hedging Designation [Axis] Hedging Designation [Axis] Alta Wind Asset Management LLC, due 2031 Alta Wind Asset Management LLC, Due 2031 [Member] Alta Wind Asset Management LLC, Due 2031 Distributions to CEG, net of contributions, cash Noncontrolling Interest, Contributions From (Distributions To) Noncontrolling Interest Holders, Cash Noncontrolling Interest, Contributions From (Distributions To) Noncontrolling Interest Holders, Cash Other Other Consolidated Variable Interest Entities [Member] Other Consolidated Variable Interest Entities Entity Filer Category Entity Filer Category Derivative instruments, assets Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Schedule of Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Table Text Block] Noncontrolling Interest AOCI Attributable to Noncontrolling Interest [Member] Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Schedule of Variable Interest Entities Schedule of Variable Interest Entities [Table Text Block] Carlsbad Energy Holdings LLC, due 2027 Carlsbad Energy Holdings LLC, due 2027 [Member] Carlsbad Energy Holdings LLC, due 2027 Economic Interest Equity Method Investment, Ownership Percentage Commitments and Contingencies Commitments and Contingencies Long Term Debt Current Long Term Debt Current [Member] Long Term Debt Current [Member] 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] Total accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Derivative, notional amount Derivative, Notional Amount Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Net assets less noncontrolling interest Net Assets Property, plant and equipment Property, Plant and Equipment, Additions, Net Property, Plant and Equipment, Additions, Net Letters of credit outstanding, amount Letters of Credit Outstanding, Amount Schedule of Asset Acquisition Schedule Of Asset Acquisition [Table Text Block] Schedule Of Asset Acquisition Schedule of Long-Term Debt Schedule of Debt [Table Text Block] Total revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Operating Funds Operating Funds [Member] Operating Funds [Member] CEG CEG [Member] CEG [Member] Tax Equity Investors Tax Equity Investors [Member] Tax Equity Investors [Member] Wildorado TE Holdco LLC Wildorado TE Holdco [Member] Wildorado TE Holdco 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. Payments for short-term and long-term debt — external Repayments of Other Debt Other Liabilities Liabilities, Noncurrent [Abstract] Cover page. Cover [Abstract] Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Level 3 Fair Value, Inputs, Level 3 [Member] Other current and non-current assets Other current and non-current assets Other Assets Segment Reporting [Abstract] Segment Reporting [Abstract] Clearway Energy LLC Clearway Energy LLC [Member] Clearway Energy LLC [Member] Noncontrolling Interest Noncontrolling Interest [Member] Derivative instruments Derivative Asset, Current Mililani I, due 2027 Mililani I, Due 2027 [Member] Mililani I, Due 2027 Total Liabilities and Members’ Equity Liabilities and Equity Reclassification of Cash to Assets Held-for-Sale Reclassification of Cash to Assets Held-for-Sale Reclassification of Cash to Assets Held-for-Sale Related Party [Axis] Related Party [Axis] Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Avenal Avenal [Member] Avenal Organization, Consolidation and Presentation of Financial Statements [Abstract] Not Designated as Hedging Instrument Not Designated as Hedging Instrument [Member] Accounts receivable, net - Contracts with customers Customer Contracts [Member] Level 2 Fair Value, Inputs, Level 2 [Member] Current Fiscal Year End Date Current Fiscal Year End Date Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility, Due 2028 Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility [Member] Clearway Energy LLC and Clearway Energy Operating LLC Revolving Credit Facility NIMH Solar, due 2024 NIMH Solar, due 2024 [Member] NIMH Solar, due 2024 Payments for associated fees Payments for Other Fees Consolidation Items [Axis] Consolidation Items [Axis] Total current liabilities Liabilities, Current Mililani I Drop Down Mililani I Drop Down [Member] Mililani I Drop Down Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Fair Values Derivatives, Balance Sheet Location, by Derivative Contract Type [Table] Derivative instruments, liabilities Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Derivative asset, fair value, gross asset Derivative Assets Derivative assets, gross Derivative Asset, Subject to Master Netting Arrangement, before Offset Daggett Renewable Holdco LLC Daggett Renewable Holdco LLC [Member] Daggett Renewable Holdco LLC Entity Address, Address Line One Entity Address, Address Line One Purpose [Domain] Purpose [Domain] [Domain] for Purpose [Axis] Cost of operations, exclusive of depreciation, amortization and accretion shown separately below Cost of Revenue Right-of-use-assets, net Asset Acquisition, Right-of-use asset Asset Acquisition, Right-of-use asset Other Proceeds from (Payments for) Other Financing Activities Administrative Services Agreement Administrative Services Agreement [Member] Administrative Services Agreement [Member] Product and Service [Axis] Product and Service [Axis] Class of Stock [Domain] Class of Stock [Domain] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Interest expense Interest expense Interest Expense Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Credit Facility [Axis] Credit Facility [Axis] Langford TE Partnership LLC Langford TE Partnership LLC [Member] Langford TE Partnership LLC Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Third Party Investor Third Party Investor [Member] Third Party Investor [Member] Construction loans Construction Loans [Member] Ownership interest (as a percentage) Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest Entity Tax Identification Number Entity Tax Identification Number Derivatives, Fair Value [Line Items] Derivatives, Fair Value [Line Items] Waiawa Waiawa [Member] Waiawa Summary of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] 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. Underlying Asset Class [Domain] Underlying Asset Class [Domain] Consolidated Entities [Domain] Consolidated Entities [Domain] Common Class D Common Class D [Member] Common Class D [Member] Net Increase (Decrease) in Cash, Cash Equivalents and Restricted Cash Cash, Cash Equivalents, Restricted Cash, and Restricted Cash Equivalents, Period Increase (Decrease), Including Exchange Rate Effect Long-term debt, additions Asset Acquisition, Long-term Debt, Additions Asset Acquisition, Long-term Debt, Additions Waiawa, due 2028 Waiawa, Due 2028 [Member] Waiawa, Due 2028 Other intangible assets, net Other Intangible Assets, Net Entity Central Index Key Entity Central Index Key Scchedule of Fair Value Option, Disclosures Fair Value Option, Disclosures [Table Text Block] Measurement Frequency [Axis] Measurement Frequency [Axis] Schedule of Accumulated Depreciation and Amortization Schedule of Accumulated Depreciation and Amortization [Table Text Block] Schedule of Accumulated Depreciation and Amortization [Table Text Block] Concentration of Credit Risk Concentration Risk, Credit Risk, Policy [Policy Text Block] Accrued expenses and other current liabilities Other Accrued Liabilities, Current Measurement Input Type [Axis] Measurement Input Type [Axis] Entity [Domain] Entity [Domain] Clearway Energy Organizational Structure Organizational Structure [Table Text Block] Org Structure [Table Text Block] City Area Code City Area Code ASSETS Assets [Abstract] General and administrative General and Administrative Expense Changes in other working capital Increase (Decrease) in Other Operating Assets and Liabilities, Net Long-term Debt, Type [Domain] Long-Term Debt, Type [Domain] Statement of Stockholders' Equity [Abstract] Statement of Stockholders' Equity [Abstract] Payments of distributions Payments of Ordinary Dividends Debt Instrument, Redemption, Period [Axis] Debt Instrument, Redemption, Period [Axis] Cash Flows from Financing Activities Net Cash Provided by (Used in) Financing Activities [Abstract] Schedule of Asset Acquisition [Table] Schedule of Asset Acquisition [Table] Schedule of Asset Acquisition Variable Rate [Axis] Variable Rate [Axis] Other non-current liabilities Other Liabilities, Noncurrent Interest rate contracts Interest Rate Contract [Member] Payments for asset acquisition Payments for Asset Acquisition Payments for Asset Acquisition Investments Accounted for by the Equity Method and Variable Interest Entities Equity Method Investments and Joint Ventures Disclosure [Text Block] Equity in (losses) earnings of unconsolidated affiliates Equity in losses (earnings) of unconsolidated affiliates Income (Loss) from Equity Method Investments Capital expenditures Payments to Acquire Property, Plant, and Equipment Additions due to loss of NPNS exception Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Additions for Loss of NPNS Exception Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Additions for Loss of NPNS Exception Utah Solar Holdings, due 2036 Utah Solar Holdings, due 2036 [Member] Utah Solar Holdings, due 2036 Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Weighted Average Weighted Average [Member] Interest Interest [Member] Details pertaining to interest rate swaps which are considered a derivative commodity. Nature of Business Business Description and Basis of Presentation [Text Block] Derivative instruments Derivative Liability, Noncurrent