Derivatives - Schedule of Mark-to-market Impact and Commodity Derivative Settlements (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Derivative Instruments, Gain (Loss) [Line Items]
Net settlements of derivative instruments	$ 7	$ 61	$ 17	$ 89
Commodity
Derivative Instruments, Gain (Loss) [Line Items]
Unrealized gain (loss) on derivative instruments, net	(4)	43	(2)	(71)
Realized gain (loss) on derivative instruments, net	$ 7	$ (70)	$ 20	$ (99)