CONSOLIDATED STATEMENT OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement Of Income And Comprehensive Income [Abstract]
Net income (loss)	$ (1,627)	$ 2,135	$ 5,506
Currency translation adjustments
Unrealized net change arising during the period	(83)	(522)	(463)
Marketable securities
Unrealized gain (loss) arising during the period	21	(50)	(166)
Reclassification to net income - impairment charge		40
Cash flow hedges
Net loss on cash flow hedges	(101)	(178)	(238)
Reclassification to net income (loss) of net realized loss	121	235	113
Actuarial gain (loss)
Actuarial loss arising during the period	(289)	(210)	(1,285)
Amortization to net income of net actuarial loss	157	306	177
Prior service cost
Amortization to net income (loss) of net prior service cost	102	101	128
Income taxes on pension and other postretirement benefit plans	(13)	(74)	82
Comprehensive income	(1,712)	1,783	3,854
Comprehensive income attributable to noncontrolling interests	60	63	68
Comprehensive income (loss) attributable to Schlumberger	$ (1,772)	$ 1,720	$ 3,786