Exploratory Well Costs - Schedule of Net Changes In Capitalized Exploratory Well Costs (Details) $ in Millions	6 Months Ended
	Jun. 30, 2023 USD ($) well
Capitalized Exploratory Well Costs that are Pending Determination of Proved Reserves [Roll Forward]
Balance at January 1	$ 15
Additions Pending the Determination of Proved Reserves	57
Reclassifications to Proved Properties	(14)
Costs charged to expense	(1)
Balance at June 30	57
Capitalized exploratory well costs that have been capitalized for a period of one year or less	56
Capitalized Exploratory Well Costs that Have Been Capitalized for Period Greater than One Year	1	[1]
Capitalized exploratory well costs	$ 57
Number of exploratory wells that have been capitalized for a period greater than one year | well	1

[1] Consists of costs related to a project in the United States at June 30, 2023.