Income Taxes - Additional Information (Detail) (USD $) In Millions, unless otherwise specified	3 Months Ended	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2013 Jurisdictions	Dec. 31, 2012	Dec. 31, 2011
Income Tax Examination [Line Items]
Minimum number of jurisdictions to Schlumberger operates		100
US statutory federal rate		35.00%	35.00%	35.00%
Pretax provision relating to accounts receivable	$ 152	$ (420)	$ 161	$ 223
Deferred tax assets, valuation allowances relating to net operating losses in certain countries	238	238	256
Accrued interest and penalties	253	253	250	225
Recognized interest and penalties		30	21	15
Domestic Country
Income Tax Examination [Line Items]
Pretax provision relating to accounts receivable		53	52	104
Foreign Country
Income Tax Examination [Line Items]
Pretax provision relating to accounts receivable		$ (473)	$ 109	$ 119
Minimum
Income Tax Examination [Line Items]
US statutory federal rate		0.00%
Maximum
Income Tax Examination [Line Items]
US statutory federal rate		40.00%