CONSOLIDATED STATEMENT OF INCOME (LOSS) - USD ($) shares in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Revenue
Services	$ 21,927	$ 20,259	$ 31,652
Product sales	8,513	7,551	3,823
Total Revenue	30,440	27,810	35,475
Interest & other income	224	200	236
Expenses
Cost of services	18,206	17,352	25,175
Cost of sales	8,337	7,057	3,146
Research & engineering	787	1,012	1,094
General & administrative	432	403	494
Impairments & other	3,211	3,172	2,575
Merger & integration	308	349
Interest	566	570	346
Income (loss) before taxes	(1,183)	(1,905)	2,881
Tax expense (benefit)	330	(278)	746
Net income (loss)	(1,513)	(1,627)	2,135
Net income attributable to noncontrolling interests	(8)	60	63
Net income (loss) attributable to Schlumberger	$ (1,505)	$ (1,687)	$ 2,072
Basic earnings per share of Schlumberger	$ (1.08)	$ (1.24)	$ 1.63
Diluted earnings per share of Schlumberger	$ (1.08)	$ (1.24)	$ 1.63
Average shares outstanding:
Basic	1,388	1,357	1,267
Assuming dilution	1,388	1,357	1,275