Income Taxes - Additional Information (Detail) $ in Millions	12 Months Ended
	Dec. 31, 2015 USD ($) Jurisdictions	Dec. 31, 2014 USD ($)	Dec. 31, 2013 USD ($)
Income Tax Disclosure [Line Items]
Minimum number of jurisdictions to Schlumberger operates | Jurisdictions	100
US federal statutory rate	35.00%	35.00%	35.00%
Restructuring and other charges	$ 2,575	$ 1,773	$ 420
Deferred tax assets, valuation allowances relating to net operating losses in certain countries	162	190
Accrued interest and penalties	176	243	253
Domestic Country
Income Tax Disclosure [Line Items]
Restructuring and other charges	883	289	53
Foreign Country
Income Tax Disclosure [Line Items]
Restructuring and other charges	$ 1,692	$ 1,484	$ 473
Minimum
Income Tax Disclosure [Line Items]
US federal statutory rate	0.00%
Maximum
Income Tax Disclosure [Line Items]
US federal statutory rate	40.00%