Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		6 Months Ended
		Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022	Dec. 31, 2022
Restructuring Cost and Reserve [Line Items]
Impairments and other charges	[1]	$ 0	$ 344	$ 0	$ 366
Operating lease right-of-use assets		1,054		1,054		$ 913
Current portion of operating lease liabilities		$ 253		$ 253		$ 224
Completion And Production [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			131		136
Drilling And Evaluation [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			178		195
Corporate and Other [Member]
Restructuring Cost and Reserve [Line Items]
Impairments and other charges			$ 35		$ 35

[1] For the three and six months ended June 30, 2022 respectively, the amounts include $131 million and $136 million charges attributable to Completions and Production, and $178 million and $195 million charges attributable to Drilling and Evaluation. Both periods include a $35 million charge attributable to Corporate and other.