Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Impairments and other charges	[1]	$ 0	$ 0	$ 0	$ 366
Operating lease right-of-use assets		1,032		1,032		$ 913
Current portion of operating lease liabilities		$ 248		$ 248		$ 224
Completion And Production [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges					136
Drilling And Evaluation [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges					195
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges					$ 35

[1] For the nine months ended September 30, 2022, the amount includes a $136 million charge attributable to Completions and Production, a $195 million charge attributable to Drilling and Evaluation, and a $35 million charge attributable to Corporate and other.