Supplemental Information on Oil And Gas Producing Activities (Unaudited) - Costs Incurred for Oil and Gas Producing Activities (Parenthetical) (Detail) - USD ($) $ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Upstream Contracts comprised in right-of-use assets [member]
Disclosure of information about consolidated entities [line items]
Development cost related to Upstream contracts comprised in right-of-use assets	$ 313	$ 223	$ 123

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

No definition available.

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