Hedging Activities and Fair Value Measurements - Schedule of Liability Balance Sheet Offsetting (Details) - Commodity derivatives - USD ($) $ in Millions	Sep. 30, 2026	Dec. 31, 2025
Offsetting Liabilities [Line Items]
Gross Amounts of Recognized Liabilities	$ 748	$ 363
Gross Amounts Offset in the Balance Sheet	0	0
Amounts of Liabilities Presented in the Balance Sheet	748	363
Financial Instruments	(748)	(362)
Cash Collateral Received	0	0
Cash Collateral Paid	0	0
Amounts That Would Have Been Presented On Net Basis	$ 0	$ 1

Amount of right to receive cash collateral under master netting arrangements that have not been offset against derivative liabilities.

Fair value, after the effects of master netting arrangements, of a financial liability or contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. Includes liabilities not subject to a master netting arrangement and not elected to be offset.

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+ Details

- Definition

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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