Charges and Credits - Additional Information (Detail) $ in Millions		3 Months Ended						12 Months Ended
	Apr. 02, 2016 USD ($)	Dec. 31, 2017 USD ($)	Jun. 30, 2017 USD ($)	Dec. 31, 2016 USD ($)	Jun. 30, 2016 USD ($)	Dec. 31, 2015 USD ($)	Mar. 31, 2015 USD ($) VEF / $	Dec. 31, 2017 USD ($)	Dec. 31, 2016 USD ($)	Dec. 31, 2015 USD ($)
Charges And Credits [Line Items]
Charges and credits, Pretax		$ 1,025	$ 50					$ 3,764	$ 3,820
Charges and credits, Net								3,590	3,237
Charge relating to one-time mandatory tax on previously deferred foreign earnings		410						410
Tax credits resulting from remeasurement of net deferred tax liabilities		334
Net deferred tax liability		1,650		$ 1,880				1,650	1,880
Promissory note in exchange of accounts receivable			$ 700
Promissory note term			3 years
Promissory note interest rate			6.50%
Debt instrument fair value		15,200		16,800				15,200	16,800
Restructuring and other charges								3,764	3,820	$ 2,575
Exchange rate | VEF / $							192
Current Market Conditions
Charges And Credits [Line Items]
Impairment and restructuring charges						$ 84
Other Than Temporary Impairment Of Marketable Securities
Charges And Credits [Line Items]
Impairment and restructuring charges						40
Impairment of Equity Method Investment
Charges And Credits [Line Items]
Impairment and restructuring charges						15
Promissory Note Fair Value Adjustment and Other
Charges And Credits [Line Items]
Charges and credits, Pretax			$ 460					510
Charges and credits, Net								498
Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax	$ 349							308	349
Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax								308
Merger and Integration | Cameron | Inventory fair value adjustments
Charges And Credits [Line Items]
Charges and credits, Pretax	299
Impairment And Other
Charges And Credits [Line Items]
Charges and credits, Pretax								3,211	3,172
Cost of Sales
Charges And Credits [Line Items]
Charges and credits, Pretax								$ 245	299
Lease termination facility
Charges And Credits [Line Items]
Restructuring charges				302
Lease termination costs
Charges And Credits [Line Items]
Impairment and restructuring charges						177
US tax reform
Charges And Credits [Line Items]
Charges and credits, Net		76
US tax reform | Tax Year2018
Charges And Credits [Line Items]
Reduced corporate income tax rate								21.00%
Promissory Notes
Charges And Credits [Line Items]
Debt instrument fair value		135						$ 135
Venezuela
Charges And Credits [Line Items]
Charges and credits, Pretax		938
North America | Lower-Tier Drilling Rigs | Pressure Pumping And Other Equipment
Charges And Credits [Line Items]
Impairment and restructuring charges						776
Land seismic business
Charges And Credits [Line Items]
Impairment charge, Pretax		90
Vessel write-down
Charges And Credits [Line Items]
Charges and credits, Pretax		786
Impairment of intangible ssets
Charges And Credits [Line Items]
Charges and credits, Pretax		78
Inventory Write Down
Charges And Credits [Line Items]
Charges and credits, Pretax		59
Impairment and other charges					$ 616
Inventory Write Down | North America
Charges And Credits [Line Items]
Impairment and restructuring charges						269
Other restructuring costs
Charges And Credits [Line Items]
Charges and credits, Pretax		102
Impairment and other charges					55
Multiclient seismic data impairment
Charges And Credits [Line Items]
Impairment and other charges		246			198
Accounts receivable | Venezuela
Charges And Credits [Line Items]
Charges and credits, Pretax		469
Other-than temporary impairment | Promissory Notes
Charges And Credits [Line Items]
Charges and credits, Pretax			$ 105
Other-than temporary impairment | Venezuela | Promissory Notes
Charges And Credits [Line Items]
Charges and credits, Pretax		105
Fixed assets | Venezuela
Charges And Credits [Line Items]
Charges and credits, Pretax		285
Other assets | Venezuela
Charges And Credits [Line Items]
Charges and credits, Pretax		79
Loss on long-term construction project
Charges And Credits [Line Items]
Charges and credits, Pretax		245
Loss on long-term construction project | Cost of Sales
Charges And Credits [Line Items]
Charges and credits, Pretax								245
Charges and credits, Net								$ 223
Facility and other exit costs
Charges And Credits [Line Items]
Charges and credits, Pretax		156
Workforce reduction
Charges And Credits [Line Items]
Charges and credits, Pretax		$ 247
Restructuring and other charges				234	646	530	$ 390
Facility closure costs | Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax									61
Charges and credits, Net									48
Facility closure costs | Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax	61
Facility closure costs | Lease termination facility
Charges And Credits [Line Items]
Restructuring charges				165
Asset write-offs | Lease termination facility
Charges And Credits [Line Items]
Restructuring charges				98
Contract termination costs
Charges And Credits [Line Items]
Impairment and restructuring charges						41
Contract termination costs | Lease termination facility
Charges And Credits [Line Items]
Restructuring charges				39
Currency Devaluation Loss In Egypt
Charges And Credits [Line Items]
Restructuring and other charges				$ 63					63
North America pressure pumping asset impairments
Charges And Credits [Line Items]
Impairment and other charges					209
Facilities impairments | North America
Charges And Credits [Line Items]
Impairment and other charges					165
Other fixed asset impairments
Charges And Credits [Line Items]
Impairment and other charges					$ 684
Merger-related employee benefits | Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax									83
Charges and credits, Net									70
Merger-related employee benefits | Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax	83
Professional fees | Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax									45
Charges and credits, Net									35
Professional fees | Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax	45
Other merger and integration-related | Merger and Integration
Charges And Credits [Line Items]
Charges and credits, Pretax									160
Charges and credits, Net									$ 132
Other merger and integration-related | Merger and Integration | Cameron
Charges And Credits [Line Items]
Charges and credits, Pretax	$ 160
Impairment of SPM Project
Charges And Credits [Line Items]
Impairment and restructuring charges						182
Geopolitical Events | Middle East
Charges And Credits [Line Items]
Impairment and restructuring charges						$ 77
Currency Devaluation Loss In Venezuela
Charges And Credits [Line Items]
Restructuring and other charges							$ 49			$ 49