Impairments and Other Charges (Details) - USD ($) $ in Millions		3 Months Ended		9 Months Ended
		Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Restructuring Cost and Reserve [Line Items]
Long-lived asset impairments				$ 150	$ 0
Severance costs				77	0
Inventory write-downs				33	0
Other				48	0
Impairments and other charges	[1]	$ 0	$ 0	308	265
VENEZUELA
Restructuring Cost and Reserve [Line Items]
Impairments and other charges				$ 0	$ 265

[1] For the nine months ended September 30, 2019, amount includes $127 million attributable to Completion and Production, $153 million attributable to Drilling and Evaluation, and $28 million attributable to Corporate and other. During the nine months ended September 30, 2018, we recognized a pre-tax charge of $265 million related to a write-down of all of our remaining investment in Venezuela. See Note 2 for further discussion on these impairments and other charges. There were no such impairments and other charges recorded during the three months ended September 30, 2019 or 2018.