Impairments and Other Charges (Details) - USD ($)		3 Months Ended
		Mar. 31, 2020	Mar. 31, 2019
Restructuring Cost and Reserve [Line Items]
Decline in US land rig count		25.00%
Long-lived asset impairments		$ 1,016,000,000	$ 42,000,000
Severance costs		32,000,000	19,000,000
Other		25,000,000	0
Impairments and other charges	[1]	1,073,000,000	$ 61,000,000
Impairment of hydraulic fracturing equipment		588,000,000
Impairment of drilling equipment		151,000,000
Maximum [Member]
Restructuring Cost and Reserve [Line Items]
WTI oil spot price		63
Minimum [Member]
Restructuring Cost and Reserve [Line Items]
WTI oil spot price		$ 14

[1] For the three months ended March 31, 2020, amount includes approximately $780 million attributable to Completion and Production, $277 million attributable to Drilling and Evaluation, and $16 million attributable to Corporate and other. See Note 2 for further discussion on these impairments and other charges.