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Fair Value of Financial Instruments Unobservable Input Reconciliation (Details) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2025	Mar. 31, 2024
Fair Value, Assets Measured on Recurring Basis, Unobservable Input Reconciliation [Line Items]
Balance as of the beginning of the period	$ 34	$ 45
Net realized and unrealized (gains)/losses	9	(2)
Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Transfers into Level 3		0
Transfers out of Level 3 to Level 2	(4)
Balance as of the end of the period	$ 39	43
Gain (Loss) from Price Risk Management Activity		$ 1

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Net Liabilities From Price Risk Management Activities Classified as Level 3

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Realized and Unrealized Gains and Losses, Net, Commodity Contracts

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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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Gain (loss) incurred in risk management activities.

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