Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2023	Mar. 31, 2022	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Impairments and other charges	[1]	$ 0	$ 22
Operating lease right-of-use assets		940		$ 913
Current portion of operating lease liabilities		$ 227		$ 224
Completion And Production [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			6
Drilling And Evaluation [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			17
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			$ (1)

[1] For the three months ended March 31, 2022, the amount includes a $6 million charge attributable to Completions and Production, a $17 million charge attributable to Drilling and Evaluation, and a $1 million gain attributable to Corporate and other.