v3.26.3
Derivatives and Risk Management - Schedules of Fair Values and Locations of Derivative Instruments (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Gross Asset $ 10 $ 17
Gross Liability (56) (47)
Collateral Netted 20 10
Net Asset (Liability) on Balance Sheet (26) (20)
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherAssetsCurrent | Commodity Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Gross Asset 4 8
Gross Liability 0 0
Collateral Netted 0 0
Net Asset (Liability) on Balance Sheet 4 8
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesCurrent | Commodity Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Gross Asset 3 7
Gross Liability (40) (33)
Collateral Netted 16 8
Net Asset (Liability) on Balance Sheet (21) (18)
Location, Statement of Financial Position, Balance [Axis]: us-gaap:OtherLiabilitiesNoncurrent | Commodity Contracts [Member]    
Derivatives, Fair Value [Line Items]    
Gross Asset 3 2
Gross Liability (16) (14)
Collateral Netted 4 2
Net Asset (Liability) on Balance Sheet $ (9) $ (10)