Fair Value Measurements - Schedule of Assets and Liabilities Measured at Fair Value on a Recurring Basis (Details) - Recurring - USD ($) $ in Millions	Mar. 31, 2024	Dec. 31, 2023
Liabilities
Derivate asset, subject to master netting arrangement, collateral, obligation to return security not offset	$ 4	$ 13
Commodity derivative instruments
Assets
Derivative assets	20	31
Contract netting	(10)	(6)
Collateral netting	0	0
Net value	10	25
Liabilities
Derivative liabilities	19	6
Contract netting	(10)	(6)
Collateral netting	0	0
Net value	9	0
Commodity derivative instruments \| Level 1
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
Commodity derivative instruments \| Level 2
Assets
Derivative assets	20	31
Liabilities
Derivative liabilities	19	6
Commodity derivative instruments \| Level 3
Assets
Derivative assets	0	0
Liabilities
Derivative liabilities	0	0
RFS
Liabilities
Derivative liabilities	294	329
Contract netting	0	0
Collateral netting	0	0
Net value	294	329
RFS \| Level 1
Liabilities
Derivative liabilities	0	0
RFS \| Level 2
Liabilities
Derivative liabilities	294	329
RFS \| Level 3
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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