Charges and Credits - Additional Information (Detail) - USD ($)		3 Months Ended						9 Months Ended
	Apr. 02, 2016	Sep. 30, 2017	Jun. 30, 2017	Mar. 31, 2017	Sep. 30, 2016	Jun. 30, 2016	Mar. 31, 2016	Sep. 30, 2017	Sep. 30, 2016	Dec. 31, 2016
Charges And Credits [Line Items]
Charges and credits, Pretax			$ 50,000,000	$ 82,000,000			$ 0	$ 723,000,000	$ 3,144,000,000
Promissory note in exchange of accounts receivable			$ 700,000,000
Promissory note term			3 years
Promissory note interest rate			6.50%
Debt instrument fair value		$ 16,200,000,000						16,200,000,000		$ 16,800,000,000
Workforce reduction
Charges And Credits [Line Items]
Impairment and other charges						$ 646,000,000
North America pressure pumping asset impairments
Charges And Credits [Line Items]
Impairment and other charges						209,000,000
Facilities impairments | North America
Charges And Credits [Line Items]
Impairment and other charges						165,000,000
Other fixed asset impairments
Charges And Credits [Line Items]
Impairment and other charges						684,000,000
Inventory Write Down
Charges And Credits [Line Items]
Impairment and other charges						616,000,000
Multiclient seismic data impairment
Charges And Credits [Line Items]
Impairment and other charges						198,000,000
Other restructuring costs
Charges And Credits [Line Items]
Impairment and other charges						$ 55,000,000
Promissory Notes
Charges And Credits [Line Items]
Debt instrument fair value		184,000,000						184,000,000
Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax	$ 185,000,000				$ 88,000,000			213,000,000
Merger and Integration | Merger-related employee benefits
Charges And Credits [Line Items]
Charges and credits, Pretax									93,000,000
Merger and Integration | Professional fees
Charges And Credits [Line Items]
Charges and credits, Pretax									45,000,000
Merger and Integration | Facility closure costs
Charges And Credits [Line Items]
Charges and credits, Pretax									51,000,000
Merger and Integration | Other merger and integration-related
Charges And Credits [Line Items]
Charges and credits, Pretax									$ 83,000,000
Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax		$ 49,000,000	$ 81,000,000
Merger and Integration | Cameron | Merger-related employee benefits
Charges And Credits [Line Items]
Charges and credits, Pretax	47,000,000
Merger and Integration | Cameron | Professional fees
Charges And Credits [Line Items]
Charges and credits, Pretax	45,000,000
Merger and Integration | Cameron | Facility closure costs
Charges And Credits [Line Items]
Charges and credits, Pretax	40,000,000
Merger and Integration | Cameron | Other merger and integration-related
Charges And Credits [Line Items]
Charges and credits, Pretax	53,000,000
Merger and Integration | Cameron | Inventory fair value adjustments
Charges And Credits [Line Items]
Charges and credits, Pretax	$ 150,000,000				$ 149,000,000
Promissory Note Fair Value Adjustment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax			$ 460,000,000					$ 510,000,000