Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Fair Value Hierarchy - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Liabilities
Derivate asset, subject to master netting arrangement, collateral, obligation to return security not offset	$ 3	$ 13
Commodity derivative instruments
Assets
Derivative assets	17	31
Contract netting	(13)	(6)
Collateral netting	0	0
Net value	4	25
Liabilities
Derivative liabilities	13	6
Contract netting	(13)	(6)
Collateral netting	0	0
Net value	0	0
RFS
Liabilities
Derivative liabilities	323	329
Contract netting	0	0
Collateral netting	0	0
Net value	323	329
Level 1 \| Commodity derivative instruments
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Level 1 \| RFS
Liabilities
Derivative liabilities	0	0
Level 2 \| Commodity derivative instruments
Assets
Derivative assets	17	31
Liabilities
Derivative liabilities	13	6
Level 2 \| RFS
Liabilities
Derivative liabilities	323	329
Level 3 \| Commodity derivative instruments
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Level 3 \| RFS
Liabilities
Derivative liabilities	$ 0	$ 0

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