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Derivatives (Classification of Gross Fair Values of Derivative Instruments, Excluding Cash Collateral) (Detail) - Commodity derivatives - USD ($) $ in Millions		Jun. 30, 2022	Dec. 31, 2021
Other current assets
Derivative [Line Items]
Asset		$ 761	$ 271
Liability		622	249
Other current liabilities
Derivative [Line Items]
Asset		0	0
Liability	[1]	14	15
Deferred credits and other liabilities
Derivative [Line Items]
Asset		0	0
Liability	[1]	$ 78	$ 93
[1] Includes embedded derivatives.

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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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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