Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended
		Mar. 31, 2022	Mar. 31, 2021	Dec. 31, 2021
Restructuring Cost and Reserve [Line Items]
Impairments and other charges	[1]	$ 22	$ 0
Operating lease right-of-use assets		913		$ 934
Current portion of operating lease liabilities		237		$ 240
UKRAINE
Restructuring Cost and Reserve [Line Items]
Write-down of A/R in Russia/Ukraine		16
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, 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.