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Accounting for Derivative Instruments and Hedging Activities (Tables)
 12 Months Ended
Dec. 31, 2025
Derivative Instruments and Hedging Activities Disclosure [Abstract]  
Schedule of Net Notional Volume Buy/(Sell) of NRG Yield's Open Derivative Transactions Broken Out by Commodity
The following table summarizes the net notional volume buy/(sell) of the Company’s open derivative transactions broken out by commodity:
Total Volume
December 31, 2025December 31, 2024
CommodityUnits(In millions)
PowerMWh(29)(25)
Natural GasMMBtu5 11 
InterestDollars$4,080 $1,769 
Schedule of Fair Value Within the Derivative Instrument Valuation on the Balance Sheets
The following table summarizes the fair value within the derivative instrument valuation on the consolidated balance sheets:
 Fair Value
 
Derivative Assets
Derivative Liabilities
December 31, 2025December 31, 2024December 31, 2025December 31, 2024
(In millions)
Derivatives Designated as Cash Flow Hedges:    
Interest rate contracts current$2 $5 $6 $— 
Interest rate contracts long-term29 22 21 — 
Total Derivatives Designated as Cash Flow Hedges
$31 $27 $27 $— 
Derivatives Not Designated as Cash Flow Hedges:    
Interest rate contracts current$17 $30 $— $— 
Interest rate contracts long-term94 109 — — 
Energy-related commodity contracts current 10 4 46 56 
Energy-related commodity contracts long-term
4 5 287 315 
Total Derivatives Not Designated as Cash Flow Hedges$125 $148 $333 $371 
Total Derivatives$156 $175 $360 $371 
Schedule of Offsetting of Derivatives by Counterparty Master Agreement Level and Collateral Received or Paid The following tables summarize the offsetting of derivatives by counterparty:
Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2025Gross Amounts of Recognized Assets/LiabilitiesDerivative InstrumentsNet Amount
Energy-related commodity contracts(In millions)
Derivative assets$14 $— $14 
Derivative liabilities(333)— (333)
Total energy-related commodity contracts$(319)$— $(319)
Interest rate contracts
Derivative assets$142 $— $142 
Derivative liabilities(27)— (27)
Total interest rate contracts$115 $— $115 
Total derivative instruments$(204)$— $(204)
Gross Amounts Not Offset in the Statement of Financial Position
As of December 31, 2024Gross Amounts of Recognized Assets/LiabilitiesDerivative InstrumentsNet Amount
Energy-related commodity contracts(In millions)
Derivative assets$9 $— $9 
Derivative liabilities(371)— (371)
Total energy-related commodity contracts$(362)$— $(362)
Interest rate contracts
Derivative assets$166 $— $166 
Total interest rate contracts$166 $— $166 
Total derivative instruments$(196)$— $(196)
Schedule of Effects of NRG Yield's Accumulated OCI Balance Attributable to Interest Rate Swaps Designated as Cash Flow Hedge Derivatives, Net of Tax
The following table summarizes the effects on the Company’s accumulated OCI (OCL) balance attributable to interest rate swaps designated as cash flow hedge derivatives, net of tax:
Year ended December 31,
202520242023
(In millions)
Accumulated OCI beginning balance$14 $18 $24 
Rosamond South I Drop Down (a)
(4)— — 
Daggett 1 Drop Down (b)
(6)— — 
Luna Valley Drop Down (c)
(8)— — 
Pine Forest Drop Down (d)
5 — — 
Honeycomb Portfolio Drop Down (e)
(3)— — 
Reclassified from accumulated OCI to income due to realization of previously deferred amounts(2)(1)(4)
Mark-to-market of cash flow hedge accounting contracts(1)(3)(2)
Accumulated (OCL) OCI ending balance, net of income tax (benefit) expense of $(1), $1 and $2, respectively
(5)14 18 
Accumulated OCI attributable to noncontrolling interests— 11 11 
Accumulated (OCL) OCI attributable to Clearway Energy, Inc.$(5)$3 $7 
Losses expected to be realized from OCL during the next 12 months, net of income tax benefit of $2
$(4)
(a) Represents $1 million attributable to the Company and $3 million attributable to noncontrolling interests.
(b) Represents $4 million attributable to the Company and $2 million attributable to noncontrolling interests.
(c) Represents $5 million attributable to the Company and $3 million attributable to noncontrolling interests.
(d) Represents $3 million attributable to the Company and $2 million attributable to noncontrolling interests.
(e) Represents $2 million attributable to the Company and $1 million attributable to noncontrolling interests.
Schedule of Derivative Gains and Losses
Mark-to-market gains/(losses) related to the Company’s derivatives are recorded in the consolidated statements of operations as follows:
Year ended December 31,
202520242023
(In millions)
Interest Rate Contracts (Interest expense)$(31)$29 $(17)
Energy-Related Commodity Contracts (Mark-to-market for economic hedging activities included in Total operating revenues) (a)
(20)(32)23 
Energy-Related Commodity Contracts (Mark-to-market for economic hedging activities included in Cost of operations) (b)
1 (2)2 
(a) Relates to long-term energy-related commodity contracts at Elbow Creek, Mesquite Star, Mt. Storm, Langford and Mesquite Sky and heat rate call option energy-related commodity contracts at El Segundo, Marsh Landing and Walnut Creek.
(b) Relates to backbone transportation service energy-related commodity contracts at El Segundo and Walnut Creek.