Derivative and Hedging Activities - Schedule of Effect of Derivative Instruments, Condensed Consolidated Balance Sheets (Details) - USD ($) $ in Millions	Jun. 30, 2025	Dec. 31, 2024
Derivatives, Fair Value [Line Items]
Short-term derivative asset	$ 46	$ 84
Long-term derivative asset	13	1
Short-term derivative liability	(155)	(71)
Long-term derivative liability	(85)	(68)
Not Designated as Hedging Instrument | Commodity Contract
Derivatives, Fair Value [Line Items]
Derivative asset (liability), fair value, gross asset (liability)	(181)	(54)
Derivative asset (liability) fair value, net asset (liability), netted	0	0
Short-term derivative asset	46	84
Long-term derivative asset	13	1
Short-term derivative liability	(155)	(71)
Long-term derivative liability	(85)	(68)
Total derivatives	(181)	(54)
Not Designated as Hedging Instrument | Commodity Contract | Short-term derivative asset
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	138	191
Derivative asset, fair value, gross liability, netted	(92)	(107)
Not Designated as Hedging Instrument | Commodity Contract | Long-term derivative asset
Derivatives, Fair Value [Line Items]
Derivative asset, fair value, gross asset	39	6
Derivative asset, fair value, gross liability, netted	(26)	(5)
Not Designated as Hedging Instrument | Commodity Contract | Short-term derivative liability
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, gross liability	(247)	(178)
Derivative liability, fair value, gross asset, netted	92	107
Not Designated as Hedging Instrument | Commodity Contract | Long-term derivative liability
Derivatives, Fair Value [Line Items]
Derivative liability, fair value, gross liability	(111)	(73)
Derivative liability, fair value, gross asset, netted	$ 26	$ 5