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, 2023	Dec. 31, 2022
Liabilities
Derivate asset, subject to master netting arrangement, collateral, obligation to return security not offset	$ 13	$ 7
Commodity derivative instruments
Assets
Derivative assets	31	4
Contract netting	(6)	(4)
Collateral netting	0	0
Net value	25	0
Liabilities
Derivative liabilities	(6)	(9)
Contract netting	6	4
Collateral netting	0	1
Net value	0	(4)
RFS
Liabilities
Derivative liabilities	(329)	(692)
Contract netting	0	0
Collateral netting	0	0
Net value	(329)	(692)
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	31	4
Liabilities
Derivative liabilities	(6)	(9)
Level 2 \| RFS
Liabilities
Derivative liabilities	(329)	(692)
Level 3 \| Commodity derivative instruments
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Level 3 \| RFS
Liabilities
Derivative liabilities	$ 0	$ 0

Fair value, after effect of master netting arrangement, of financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and contract can be net settled by means outside contract or delivery of asset. Includes derivative subject to master netting arrangement not elected or qualified to offset. Excludes derivative not subject to master netting arrangement or similar agreement.

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