CONSOLIDATED STATEMENT OF INCOME - USD ($) shares in Millions, $ in Millions		12 Months Ended
		Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Income Statement [Abstract]
Revenue		$ 35,475	$ 48,580	$ 45,266
Interest & other income		236	291	165
Gain on formation of OneSubsea				1,028
Expenses
Cost of revenue		28,321	37,398	35,331
Research & engineering		1,094	1,217	1,174
General & administrative		494	475	416
Impairments & other		2,575	1,773	456
Interest		346	369	391
Income from continuing operations before taxes		2,881	7,639	8,691
Taxes on income		746	1,928	1,848
Income from continuing operations		2,135	5,711	6,843
Loss from discontinued operations			(205)	(69)
Net income		2,135	5,506	6,774
Net income attributable to noncontrolling interests		63	68	42
Net income attributable to Schlumberger		2,072	5,438	6,732
Schlumberger amounts attributable to:
Income from continuing operations		2,072	5,643	6,801
Loss from discontinued operations			(205)	(69)
Net income attributable to Schlumberger		$ 2,072	$ 5,438	$ 6,732
Basic earnings per share of Schlumberger
Income from continuing operations		$ 1.63	$ 4.36	$ 5.14
Loss from discontinued operations			(0.16)	(0.05)
Net income		1.63	4.20	5.09
Diluted earnings per share of Schlumberger
Income from continuing operations		1.63	4.31	5.10
Loss from discontinued operations			(0.16)	(0.05)
Net income	[1]	$ 1.63	$ 4.16	$ 5.05
Average shares outstanding:
Basic		1,267	1,295	1,323
Assuming dilution		1,275	1,308	1,333

[1] Amounts may not add due to rounding.