Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Cash Distribution Cash Distribution [Member] Trading Arrangement: Trading Arrangement [Axis] High Maximum Maximum [Member] Asset Acquisition [Table] Asset Acquisition [Table] Portion at Fair Value Measurement Portion at Fair Value Measurement [Member] Statistical Measurement [Domain] Statistical Measurement [Domain] Title of 12(b) Security Title of 12(b) Security Carrying Amount Reported Value Measurement [Member] Subsequent Event Subsequent Event [Member] Document Fiscal Year Focus Document Fiscal Year Focus Goat Mountain Repowering Goat Mountain Repowering [Member] Goat Mountain Repowering Derivative instruments, liabilities Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Transaction and integration costs Business Combination, Acquisition-Related Cost, Expense Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Option Model Valuation Technique, Option Pricing Model [Member] Adjustment to Compensation, Amount Adjustment to Compensation Amount Financial Instrument [Axis] Financial Instrument [Axis] Segment Reporting [Abstract] Segment Reporting [Abstract] 2034 Senior Notes 2034 Senior Notes [Member] 2034 Senior Notes Class B, Class C and Class D common stock, $0.01 par value; 2,500,000,000 shares authorized (Class B 500,000,000, Class C 1,000,000,000, Class D 1,000,000,000); 205,274,852 shares issued and outstanding (Class B 42,738,750, Class C 121,174,960, Class D 41,361,142) at September 30, 2026 and 203,773,674 shares issued and outstanding (Class A 34,613,853, Class B 42,738,750, Class C 84,844,929, Class D 41,576,142) at December 31, 2025 Common Stock, Value, Issued Interest expense Interest Expense, Operating and Nonoperating Depreciation, amortization and accretion Depreciation, Amortization and Accretion, Net Earnings Per Share [Line Items] Earnings Per Share [Line Items] Earnings Per Share Restatement Determination Date Restatement Determination Date Long-term debt, including current portion Long-Term Debt and Lease Obligation, Including Current Maturities Derivative Instrument [Axis] Derivative Instrument [Axis] Schedule of Income Tax Provision Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Purpose [Domain] Purpose [Domain] Purpose Honeycomb Portfolio BESS Honeycomb Portfolio BESS [Member] Honeycomb Portfolio BESS Derivative assets Asset Acquisition, Derivative Assets Asset Acquisition, Derivative Assets Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Current Liabilities Liabilities, Current [Abstract] Shares converted (in shares) Conversion of Stock, Shares Converted Schedule of Net Notional Volume Buy/(Sell) of the Company’s Open Derivative Transactions Broken Out by Commodity Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Entity Common Stock, Shares Outstanding (in shares) Entity Common Stock, Shares Outstanding Total liabilities assumed Asset Acquisition, Liabilities Assumed Asset Acquisition, Liabilities Assumed Number of solar facilities Power Purchase Agreement, Number Of Solar Facilities Power Purchase Agreement, Number Of Solar Facilities Energy-related commodity contracts current Commodity Contract Current [Member] The current portion of a derivative instrument whose primary underlying risk is tied to commodity prices. Total other liabilities Liabilities, Noncurrent Cardinal Portfolio acquisition Stock Issued During Period, Value, Acquisitions Palisade Plains Partnership Palisade Plains Partnership [Member] Palisade Plains Partnership Consolidated Entities [Domain] Consolidated Entities [Domain] Related Party Transactions Related Party Transactions Disclosure [Text Block] Distributions to noncontrolling interests, non-cash Non-cash contribution from redeemable noncontrolling interests Distributions to Noncontrolling Interests, Non-cash Distributions to Noncontrolling Interests, Non-cash 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 Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Tax Credit Transfer Bridge Loan Tax Credit Transfer Bridge Loan [Member] Tax Credit Transfer Bridge Loan Schedule of Cash and Cash Equivalents Schedule of Cash and Cash Equivalents [Table Text Block] Entity Address, State or Province Entity Address, State or Province Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements PEO Total Compensation Amount PEO Total Compensation Amount Common stock, par value (in dollars per share) Common Stock, Par or Stated Value Per Share Asset Acquisition [Axis] Asset Acquisition [Axis] Forward Market Price Measurement Input, Commodity Forward Price [Member] Other Liabilities Liabilities, Noncurrent [Abstract] Rosamond South I Drop Down Rosamond South I Drop Down [Member] Rosamond South I Drop Down Derivative, notional amount Derivative, Notional Amount Weighted average number shares outstanding - basic (in shares) Weighted Average Number of Shares Outstanding, Basic Nature of Business [Table] Nature of Business [Table] Nature of Business [Table] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Construction loans Construction Loans [Member] Schedule of Distributions Paid Schedule of Distributions Paid [Table Text Block] Schedule of Distributions Paid [Table Text Block] Total current liabilities Liabilities, Current Net assets acquired Asset Acquisition, Assets Acquired and Liabilities Assumed Net, Less Noncontrolling Interest Asset Acquisition, Assets Acquired and Liabilities Assumed Net, Less Noncontrolling Interest Restricted cash Asset Acquisition, Restricted Cash Asset Acquisition, Restricted Cash Derivative instruments Derivative Liability, Current Basis spread on fixed rate (as a percentage) Debt Instrument, Basis Spread on Fixed Rate Debt Instrument, Basis Spread on Fixed Rate Other Comprehensive Income (Loss) Comprehensive Income (Loss), Net of Tax, Attributable to Parent [Abstract] Gains expected to be realized from OCI during the next 12 months, net of income tax expense of $(19) Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Entity Address, City or Town Entity Address, City or Town Third-Party Investor Third-Party Investor [Member] Third-Party Investor Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Class of Stock [Axis] Class of Stock [Axis] Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Other current and non-current assets Asset Acquisition, Other Current And Noncurrent Assets Asset Acquisition, Other Current And Noncurrent Assets Payments for asset acquisition and transaction expenses Payments For Asset Acquisitions, Net of Cash Acquired And Transaction Expenses Payments For Asset Acquisitions, Net of Cash Acquired And Transaction Expenses Public Shareholders Public Shareholders [Member] Public Shareholders Return of investment from unconsolidated affiliates Proceeds from Equity Method Investment, Distribution, Return of Capital 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] Payments of dividends and distributions Payments of Ordinary Dividends Level 2 Fair Value, Inputs, Level 2 [Member] Receivable [Domain] Receivable [Domain] Intangible Assets Accumulated Amortization Intangible Asset, Finite-Lived, Accumulated Amortization Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Other comprehensive income (loss) Mark-to-market of cash flow hedge accounting contracts Other Comprehensive Income (Loss), Net of Tax Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Less current maturities Long-Term Debt, Current Maturities Subsequent Event Type [Axis] Subsequent Event Type [Axis] Non-cash adjustments for change in tax basis Adjustments to Additional Paid in Capital, Other Unrealized gain (loss) on derivatives and changes in accumulated OCI/OCL, net of income tax (expense) benefit of $(25), $—, $(29) and $5 Unrealized gain (loss) on derivatives and changes in accumulated OCL, net of tax Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification and Tax 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 Error Correction [Table] Error Correction [Table] Recently Adopted Accounting Standards and Recent Accounting Standards Not Yet Adopted New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Segment Reporting Segment Reporting [Table Text Block] Noncontrolling Interest Noncontrolling Interest [Member] Use of Estimates Use of Estimates, Policy [Policy Text Block] Related Party [Axis] Related and Nonrelated Parties [Axis] Goat Mountain Goat Mountain [Member] Goat Mountain Payments for the revolving credit facility Repayments of Lines of Credit Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest Accumulated Gain (Loss), Cash Flow Hedge, Including Noncontrolling Interest [Member] Stock issued under DSPP (in shares) Stock Issued During Period, Shares, Dividend Reinvestment Plan Cardinal Portfolio acquisition Cardinal Portfolio Cardinal Portfolio Acquisition [Member] Cardinal Portfolio Acquisition RENOM RENOM [Member] RENOM [Member] Document Period End Date Document Period End Date Net Cash Used in Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Total payments Debt Instrument, Face Amount Other Income (Expense) Costs and Expenses [Abstract] Security Exchange Name Security Exchange Name Debt instrument, term (in years) Debt Instrument, Term Elbow Creek Restructuring Elbow Creek Restructuring [Member] Elbow Creek Restructuring Effective interest rate (as a percentage) Debt Instrument, Interest Rate, Effective Percentage Proceeds from noncontrolling interests Proceeds from Noncontrolling Interests Position [Axis] Position [Axis] Payments for other fees Payments for Other Fees Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] Tax Equity Investor Tax Equity Investors [Member] Tax Equity Investors [Member] Accumulated other comprehensive income (loss) Accumulated Other Comprehensive Income (Loss), Net of Tax Entity Shell Company Entity Shell Company Common Class B Common Class B [Member] Consolidation Items [Domain] Consolidation Items [Domain] Reserved for issuance up to an aggregate (in shares) Share-Based Compensation Arrangement by Share-Based Payment Award, Number of Shares Authorized Stock issued during period, issued for services (in shares) Stock Issued During Period, Shares, Issued for Services Pine Forest Drop Down Pine Forest Drop Down [Member] Pine Forest Drop Down Schedule of Accumulated Depreciation and Amortization Property, Plant, and Equipment [Table Text Block] Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Earnings Per Share Earnings Per Share [Text Block] Name Outstanding Recovery, Individual Name Power Power [Member] Details pertaining to the power, which is considered as a derivative commodity. Earnings Per Share Attributable to Clearway Energy, Inc. Class A and Class C Common Stockholders Earnings Per Share [Abstract] Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Document Fiscal Period Focus Document Fiscal Period Focus Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Other comprehensive income Asset Acquisition, Comprehensive Income (Loss) Asset Acquisition, Comprehensive Income (Loss) Total Liabilities Liabilities Trading Symbol Trading Symbol Accumulated OCI (OCL) attributable to Clearway Energy, Inc. AOCI Including Portion Attributable to Noncontrolling Interest [Member] Net assets assumed Remaining distributed amount Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Asset Acquisition, Assets Acquired and Liabilities Assumed, Net Capital expenditures Payments to Acquire Property, Plant, and Equipment Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Common Class D Common Class D [Member] Common Class D [Member] Statement of Stockholders' Equity Schedule of Capitalization, Equity [Line Items] Other revenue Products And Services, Other [Member] Products And Services, Other [Member] Schedule of Recognized Identified Assets Acquired and Liabilities Assumed Business Combination, Recognized Asset Acquired and Liability Assumed [Table Text Block] Company Selected Measure Name Company Selected Measure Name Schedule of Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Operating Lease, Lease Income, Statement of Income or Comprehensive Income [Extensible Enumeration] Amortization of financing costs and debt discounts Amortization of Debt Issuance Costs and Discounts Long-term Power Commodity Contracts Energy-Related Commodity Contracts (Mark-to-market for economic hedging activities included in Total operating revenues) Energy Related Derivative [Member] Unrealized gain (loss) on derivatives, net of tax Unrealized Gain (Loss) on Derivatives Total debt Long-Term Debt, Gross Credit Facility [Domain] Credit Facility [Domain] Related Party Transactions [Abstract] Related Party Transactions [Abstract] Cash Flows from Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Compensation Amount Outstanding Recovery Compensation Amount Contract amortization Less: Contract amortization Capitalized Contract Cost, Amortization Individual: Individual [Axis] Cardinal Portfolio JV Cardinal Portfolio Cardinal Portfolio [Member] Cardinal Portfolio Weighted average number of shares outstanding - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Accounts, Notes, Loans and Financing Receivable [Line Items] Accounts, Notes, Loans and Financing Receivable [Line Items] Disaggregation of Revenue [Line Items] Disaggregation of Revenue [Line Items] Dividends Per Common Share (in dollars per share) Dividends per share (in dollars per share) Common Stock, Dividends, Per Share, Cash Paid Acquisition of Drop Down Assets, net of cash acquired Payment to Acquire Assets, Net of Cash Acquired Payment to Acquire Assets, Net of Cash Acquired Entity Emerging Growth Company Entity Emerging Growth Company Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] Related Party Transaction Related Party Transaction [Line Items] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Renewables & Storage Renewables And Storage [Member] Renewables And Storage Proceeds from the revolving credit facility Proceeds from Lines of Credit Derivative Instruments and Hedging Activities Derivative Instruments and Hedging Activities Disclosure [Text Block] Derivative Liabilities Derivative liabilities, gross Derivative Liability, Subject to Master Netting Arrangement, before Offset Cash, Cash Equivalents and Restricted Cash Cash and Cash Equivalents, Restricted Cash and Cash Equivalents, Policy [Policy Text Block] Pro-rata distributions to CEG Distribution Made to Limited Liability Company (LLC) Member, Cash Distributions Paid Changes in other working capital Increase (Decrease) in Other Operating Assets and Liabilities, Net Award Timing Predetermined Award Timing Predetermined [Flag] Revision of Previously Issued Unaudited Financial Information Error Correction [Text Block] Letters of credit outstanding Letters of Credit Outstanding, Amount Tuolumne Repowering Tuolumne Repowering [Member] Tuolumne Repowering Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Early partial repayment Asset Acquisition, Early Partial Repayment Asset Acquisition, Early Partial Repayment Derivative instruments Derivative Asset, Noncurrent Effective income tax rate Effective Income Tax Rate Reconciliation, Percent 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] Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Capital Unit, Class C Capital Unit, Class C [Member] Capital Unit, Class C Other Financial Instruments Solar Renewable Energy Credits And Other Financial Instruments [Member] Solar Renewable Energy Credits And Other Financial Instruments Schedule of Fair Value Option, Disclosures Fair Value Option, Disclosures [Table Text Block] Flexible Generation Flexible Generation [Member] Flexible Generation All Executive Categories All Executive Categories [Member] Number of states Number of States in which Entity Operates Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Distributions per unit (in dollars per share) Distribution Made to Limited Liability Company (LLC) Member, Distributions Paid, Per Unit Repayments of outstanding borrowings Repayments of Long-Term Lines of Credit Par value - preferred stock (in dollars per share) Preferred Stock, Par or Stated Value Per Share Fair value of long term debt Long-Term Debt, Fair Value Changes in derivative instruments and amortization of accumulated OCI/OCL Increase (Decrease) in Derivative Assets and Liabilities Redeemable noncontrolling interest in subsidiaries Redeemable Noncontrolling Interest, Equity, Carrying Amount Plan Name [Domain] Plan Name [Domain] Scenario [Domain] Scenario [Domain] Asset Acquisition [Domain] Asset Acquisition [Domain] Distributions to CEG, net of contributions, cash Noncontrolling Interest, Increase (Decrease) from Sale of Parent Equity Interest Noncontrolling Interest, Increase (Decrease) from Sale of Parent Equity Interest Right-of-use assets, net Operating Lease, Right-of-Use Asset AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward] Rosie South TargetCo LLC Rosie South TargetCo LLC [Member] Rosie South TargetCo LLC Schedule of Reconciliation of Basic and Diluted Earnings Per Share Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Debt Disclosure [Abstract] Debt Disclosure [Abstract] Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Right-of-use assets Asset Acquisition, Right-Of-Use Assets, Net Asset Acquisition, Right-Of-Use Assets, Net Noncontrolling Interest [Line Items] Noncontrolling Interest [Line Items] Current portion of long-term debt Long-Term Debt and Lease Obligation, Current Segment Reporting Segment Reporting [Text Block] Low Minimum Minimum [Member] Expiration Date Trading Arrangement Expiration Date Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Total Stockholders’ Equity Accumulated OCI (OCL) beginning balance Accumulated OCI (OCL) ending balance Total Stockholders’ Equity Equity, Including Portion Attributable to Noncontrolling Interest Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Nonrelated Party Nonrelated Party [Member] Due to related party Other Liabilities Affiliated Entity Affiliated Entity [Member] Common stock dividends and distributions to CEG unit holders Dividends, Common Stock Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Derivative [Table] Derivative [Table] Proceeds from the issuance of Class C common stock Proceeds from Issuance of Common Stock Common stock, authorized (in shares) Common Stock, Shares Authorized Exercise Price Award Exercise Price Cash Flows from Investing Activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Related Party Transaction [Axis] Related Party Transaction [Axis] Schedule of Equity Method Investments [Line Items] Schedule of Equity Method Investments [Line Items] Segment Reporting [Line Items] Segment Reporting [Line Items] Net income (loss) Business Combination, Pro Forma Information, Pro Forma Income (Loss), after Tax Payments for equipment deposits and asset purchases from affiliate Payments For Equipment Deposits And Asset Purchases From Affiliate Payments For Equipment Deposits And Asset Purchases From Affiliate Document Quarterly Report Document Quarterly Report Option Indexed to Issuer's Equity, Type [Axis] Option Indexed to Issuer's Equity, Type [Axis] Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Segment [Domain] Segments [Domain] Total accounts receivable, net Accounts Receivable, after Allowance for Credit Loss Input/Range Derivative Asset (Liability) Net, Measurement Input Power generation capacity, megawatts Power Generation Capacity, Megawatts Power Generation Capacity, Megawatts Accrued interest expense Interest Payable Scenario [Axis] Scenario [Axis] Payments for long-term debt Repayment of outstanding loan Repayments of Long-Term Debt Restricted Cash and Cash Equivalents [Axis] Restricted Cash and Cash Equivalents [Axis] Less net debt issuance costs Debt issuance costs Debt Issuance Costs, Net Unamortized debt issuance costs Debt Instrument, Unamortized Discount (Premium) and Debt Issuance Costs, Net Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Equity investments in affiliates Investment Balance Equity Method Investments Equity Component [Domain] Equity Component [Domain] Quarterly Financial Information Disclosure [Abstract] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Measurement Input Type [Domain] Measurement Input Type [Domain] 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 Business Combination, Asset Acquisition, Transaction between Entities under Common Control, and Joint Venture Formation [Abstract] 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 Gain recorded to total operating revenues 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. Total operating costs and expenses Costs and Expenses Adoption Date Trading Arrangement Adoption Date Payments for asset acquisition, additional purchase price Payments For Asset Acquisition, Additional Purchase Price Payments For Asset Acquisition, Additional Purchase Price Investments in unconsolidated affiliates Payments to Acquire Equity Method Investments Interest rate (as a percentage) Debt Instrument, Interest Rate, Stated Percentage Counterparty Name [Domain] Counterparty Name [Domain] Total other expense, net Nonoperating Income (Expense) ASSETS Assets [Abstract] Title Trading Arrangement, Individual Title Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Proceeds from issuance of stock Proceeds from Issuance of Common Stock, Dividend Reinvestment Plan Accounting Policies [Abstract] Accounting Policies [Abstract] Buyout of noncontrolling interest Payments of Capital Distribution Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Accrued professional fees Payments of Stock Issuance Costs Insider Trading Policies and Procedures [Line Items] Drop Down AOCI Including Portion Attributable to Noncontrolling Interest, Period Increase (Decrease) Other Proceeds from (Payment for) Other Financing Activity Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Property, plant and equipment Property, Plant, and Equipment, before Accumulated Depreciation, Addition Prepayments and other current assets Prepaid Expense and Other Assets, Current Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Repayments of debt Repayments of Debt Schedule of Error Corrections and Prior Period Adjustments Schedule of Error Corrections and Prior Period Adjustments [Table Text Block] Business Combination [Domain] Business Combination [Domain] Letter of Credit Letter of Credit [Member] Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Less: Lease revenue Total Operating Lease, Lease Income Net (loss) income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Rounding Adjustments Net Income (Loss), Including Portion Attributable to Noncontrolling Interest, Including Rounding Adjustments Entity Central Index Key Entity Central Index Key Weighted Average Weighted Average [Member] Property, Plant and Equipment Accumulated Depreciation Property, Plant, and Equipment, Accumulated Depreciation, Depletion, and Amortization Underlying Asset Class [Axis] Underlying Asset Class [Axis] All Adjustments to Compensation All Adjustments to Compensation [Member] Corporate Segment Reporting, Reconciling Item, Corporate Nonsegment [Member] Number Of Reportable Segments Not Disclosed Flag Number Of Reportable Segments Not Disclosed Flag Number Of Reportable Segments Not Disclosed Flag Business Combination [Axis] Business Combination [Axis] Equity [Abstract] Equity [Abstract] Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Net Cash Provided by Operating Activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Remaining expected to be paid Long-Term Debt, Maturity, Remainder of Fiscal Year Other Stockholders' Equity, Other Stockholders’ Equity Equity, Attributable to Parent [Abstract] Income Statement [Abstract] Income Statement [Abstract] Document Transition Report Document Transition Report Financial instruments using level 3 fair value inputs (as a percentage) Percent of Other Financial Instrument Liabilities Using Level 3 Fair Value Inputs Percent of Other Financial Instrument Liabilities Using Level 3 Fair Value Inputs Avenal Avenal [Member] Avenal Ownership [Axis] Ownership [Axis] Cash Equity Bridge Loan Cash Equity Bridge Loan [Member] Cash Equity Bridge Loan Accumulated OCI (OCL) attributable to noncontrolling interests AOCI Attributable to Noncontrolling Interest [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Investment, Name [Axis] Investment, Name [Axis] Derivatives Designated as Cash Flow Hedges: Designated as Hedging Instrument [Member] Deferred income taxes Deferred Income Tax Assets, Net Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Basis spread on variable rate (as a percentage) Debt instrument, basis spread on variable rate (as a percentage) Debt Instrument, Basis Spread on Variable Rate City Area Code City Area Code Alternative Energy Alternative Energy [Member] Accumulated Other Comprehensive Income (Loss) AOCI Attributable to Parent [Member] All Individuals All Individuals [Member] Reduction in carrying amount of right-of-use assets Operating Lease, Right-of-Use Asset, Periodic Reduction Other non-current liabilities Asset Acquisition, Liabilities, Other Noncurrent Asset Acquisition, Liabilities, Other Noncurrent Name Forgone Recovery, Individual Name As Previously Reported Previously Reported [Member] GenConn Gen Conn Energy LLC [Member] Represents the information pertaining to GenConn Energy LLC. Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] RS2-Spindle TargetCo LLC RS2-Spindle TargetCo LLC [Member] RS2-Spindle TargetCo LLC Statement Statement [Line Items] Total Assets Assets Derivative nonmonetary notional amount (energy measure) Derivative, Nonmonetary Notional Amount, Energy Measure Entity [Domain] Entity [Domain] Call Option Call Option [Member] Capacity revenue Capacity Revenue [Member] Capacity Revenue [Member] Effective Income Tax Rate Reconciliation [Line Items] Effective Income Tax Rate Reconciliation [Line Items] Energy-related commodity contracts long-term Commodity Contract Long-Term [Member] Commodity Contract Long-Term [Member] Preferred stock issued (in shares) Preferred Stock, Shares Issued Variable Interest Entity Variable Interest Entity, Not Primary Beneficiary [Member] Operating Segments Operating Segments [Member] Interest expense Interest Expense, Nonoperating Contributions from CEG, net of distributions, cash Cash contributions from redeemable noncontrolling interests, net of distributions Noncontrolling Interest, Increase from Sale of Parent Equity Interest PEO PEO [Member] Accounts receivable, net - Contracts with customers Customer Contracts [Member] Cash and Cash Equivalents [Domain] Cash and Cash Equivalents [Domain] Derivative instruments, assets Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Measurement Basis [Axis] Measurement Basis [Axis] Other non-current liabilities Other Liabilities, Noncurrent Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Fair Value Measurement Inputs and Valuation Techniques [Line Items] Fair Value Measurement Inputs and Valuation Techniques [Line Items] 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. Common Class C Common Class C [Member] Subsequent Event Type [Domain] Subsequent Event Type [Domain] Retained Earnings (Accumulated Deficit) Retained Earnings [Member] Long-term lease liabilities Operating Lease, Liability, Noncurrent Gains expected to be realized from OCI during the next 12 months, net of income tax expense Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Tax Cash Flow Hedge Gain (Loss) to be Reclassified within Twelve Months, Tax Revision of Prior Period [Domain] Revision of Prior Period [Domain] Revolving Credit Facility Revolving Credit Facility [Member] 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. Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Schedule of Fair Value Measurement Inputs and Valuation Techniques Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Increase (Decrease) in Stockholders' Equity [Roll Forward] Increase (Decrease) in Stockholders' Equity [Roll Forward] Proceeds from transferable tax credits Proceeds From Transferable Tax Credits Proceeds From Transferable Tax Credits Common stock outstanding (in shares) Common Stock, Shares, Outstanding Award Timing Disclosures [Line Items] Schedule of Estimated Carrying Values and Fair Values Fair Value, by Balance Sheet Grouping [Table Text Block] Payments of debt issuance costs Payments of Debt Issuance Costs Earnings Per Weighted Average Common Share - Diluted (in dollars per share) Earnings per weighted average common share — diluted (in dollars per share) Earnings per weighted average Class A and Class C common share - diluted (in dollars per share) Earnings Per Share, Diluted 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] Cash Asset Acquisition, Cash Asset Acquisition, Cash Entity Current Reporting Status Entity Current Reporting Status Net Cash (Used in) Provided by Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Total Shareholder Return Amount Total Shareholder Return Amount Unrealized gain (loss) on derivatives and changes in accumulated OCI/OCL, net of income tax benefit Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax Gross Amounts of Recognized Assets/Liabilities Fair Value of Gross Derivative Assets/(Liabilities), Net Fair value of gross derivative assets less fair value of gross derivative liabilities. Ownership [Domain] Ownership [Domain] Schedule of Unaudited Proforma Financial Information Business Combination, Pro Forma Information [Table Text Block] Adjustments to reconcile net income (loss) to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Natural Gas Natural Gas [Member] Intangible assets for power purchase agreements Intangible Asset, Finite-Lived, Acquired Term Loan Term Loan [Member] Term Loan Total revenue from contracts with customers Revenue from Contract with Customer, Excluding Assessed Tax Cash Flows from Financing Activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Property, plant and equipment, net Property, plant and equipment Property, Plant, and Equipment, after Accumulated Depreciation, Depletion, and Amortization Accounts receivable, net - Leases Lease Agreements [Member] Clearway Energy, Inc. Clearway Energy, Inc. [Member] Clearway Energy, Inc. [Member] Other current liabilities Asset Acquisition, Liabilities, Other Current Asset Acquisition, Liabilities, Other Current Ownership interest (as a percentage) Limited Liability Company or Limited Partnership, Members or Limited Partners, Ownership Interest CEG CEG [Member] CEG [Member] Financial Instruments [Domain] Financial Instruments [Domain] Schedule of Equity Method Investments Equity Method Investments [Table Text Block] 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. 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