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 Subsequent Event Subsequent Event [Member] Carrying Amount Reported Value Measurement [Member] Document Fiscal Year Focus Document Fiscal Year Focus 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] 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); 205,267,917 shares issued and outstanding (Class B 42,738,750, Class C 121,168,025, Class D 41,361,142) at June 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 Post-closing adjustments Asset Acquisition, Purchase Price, Post-Closing Adjustments Asset Acquisition, Purchase Price, Post-Closing Adjustments Cash Asset Acquisition, Cash Asset Acquisition, Cash Restatement Determination Date Restatement Determination Date Long-term debt, including current portion Long-Term Debt and Lease Obligation, Including Current Maturities Number Of Reportable Segments Not Disclosed Flag Number Of Reportable Segments Not Disclosed Flag Number Of Reportable Segments Not Disclosed Flag Derivative Instrument [Axis] Derivative Instrument [Axis] Schedule of Income Tax Provision Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Amendment Flag Amendment Flag Consolidated Entities [Axis] Consolidated Entities [Axis] Current Liabilities Liabilities, Current [Abstract] Other non-current liabilities Asset Acquisition, Liabilities, Other Noncurrent Asset Acquisition, Liabilities, Other Noncurrent 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 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 Redeemable Noncontrolling Interest Redeemable Noncontrolling Interest [Member] Redeemable Noncontrolling Interest [Member] Total other liabilities Liabilities, Noncurrent Cardinal Portfolio acquisition Stock Issued During Period, Value, Acquisitions Consolidated Entities [Domain] Consolidated Entities [Domain] Related Party Transactions Related Party Transactions Disclosure [Text Block] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] 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 Capital expenditures Capital Expenditures Represents amount of total Capital expenditures including accruals pertaining to repowering of entity's projects, major maintenance and meeting environmental commitments. 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Fair Value, by Balance Sheet Grouping [Table] Fair Value, by Balance Sheet Grouping [Table] Construction loans Construction Loans [Member] Energy revenue Energy Revenue [Member] Energy Revenue [Member] Total current liabilities Liabilities, Current Derivative instruments Derivative Liability, Current 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 $(2) Cash Flow Hedge Gain (Loss) to be Reclassified within 12 Months Entity Address, City or Town Entity Address, City or Town 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. Capacity revenue Capacity Revenue [Member] Capacity Revenue [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. 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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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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] 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] 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 Other current liabilities Asset Acquisition, Liabilities, Other Current Asset Acquisition, Liabilities, Other Current Accumulated OCI (OCL) ending balance, net of income tax 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 Schedule of Disaggregation of Revenue Disaggregation of Revenue [Table Text Block] Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Distributions for future delivery of equipment Distributions For Future Delivery Of Equipment Distributions For Future Delivery Of Equipment 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 Clearway Energy, Inc. Clearway Energy, Inc. [Member] Clearway Energy, Inc. [Member] Exercise Price Award Exercise Price Early partial repayment Asset Acquisition, Early Partial Repayment Asset Acquisition, Early Partial Repayment 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 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 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Net income (loss) attributable to Clearway Energy, Inc. Net income (loss) attributable to Clearway Energy, Inc. Net Income (Loss) Attributable to Parent Long-term Debt, Type [Axis] Long-Term Debt, Type [Axis] Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Remaining balance to distribute Asset Acquisition, Remaining Balance to Distribute Asset Acquisition, Remaining Balance to Distribute Discounted Cash Flow Valuation Technique, Discounted Cash Flow [Member] Statement [Table] Statement [Table] Restatement Determination Date: Restatement Determination Date [Axis] Add premiums Debt Instrument, Unamortized Premium Payments for asset acquisition Payments For Asset Acquisition Payments For Asset Acquisition Schedule of Contract Balances Contract with Customer, Contract Asset, Contract Liability, and Receivable [Table Text Block] Derivative Assets Derivative assets, gross Derivative Asset, Subject to Master Netting Arrangement, before Offset Interest Interest [Member] Details pertaining to interest rate swaps which are considered a derivative commodity. 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