v3.26.1
Financial Instruments and Risk Management (Unrealized Risk Management Positions) (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Derivatives, Fair Value [Line Items]    
Risk Management, Current asset $ 187 $ 86
Risk Management, Long-term asset 185 4
Risk Management, Total asset 372 90
Risk Management, Current liability 32 2
Risk Management, Long-term liability 14 13
Risk Management, Total liability 46 15
Risk Management and Other Derivative Guarantee, at Fair Value, Net $ 326 $ 75