Financial Instruments - Fair Value of Offsetting Assets and Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2026	Dec. 31, 2025
Derivative [Line Items]
Asset Derivatives	$ 1,470	$ 826
Liability Derivatives	1,767	1,780
Net asset variation margin balances for future contracts	87	364
Balance Sheet Location [Axis]: us-gaap:OtherAssets
Derivative [Line Items]
Asset Derivatives	263	162
Balance Sheet Location [Axis]: us-gaap:OtherAssetsCurrent
Derivative [Line Items]
Asset Derivatives	1,207	664
Balance Sheet Location [Axis]: us-gaap:OtherLiabilities
Derivative [Line Items]
Liability Derivatives	492	452
Balance Sheet Location [Axis]: us-gaap:OtherLiabilitiesCurrent
Derivative [Line Items]
Liability Derivatives	$ 1,275	$ 1,328

Fair value, before effects of master netting arrangements, of a financial asset or other 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 assets not subject to a master netting arrangement and elected not to be offset.

- Definition

Fair value, before 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 elected not to be offset.

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