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Derivatives (Classification of Gross Fair Values of Derivative Instruments, Excluding Cash Collateral) (Detail) - USD ($) $ in Millions	Sep. 30, 2024	Dec. 31, 2023
Commodity derivatives | Other current assets
Derivative [Line Items]
Asset	$ 303	$ 244
Liability	295	249
Embedded derivatives in commodity contracts | Other current liabilities
Derivative [Line Items]
Asset	0	0
Liability	10	11
Embedded derivatives in commodity contracts | Deferred credits and other liabilities
Derivative [Line Items]
Asset	0	0
Liability	$ 59	$ 50

X

- Definition

Fair value of liability associated with 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.

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- Definition

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 elected not to be offset. Excludes assets not subject to a master netting arrangement.

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