CONSOLIDATED STATEMENT OF INCOME (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2018	Sep. 30, 2017	Sep. 30, 2018	Sep. 30, 2017
Revenue
Total Revenue	$ 8,504	$ 7,905	$ 24,636	$ 22,261
Interest & other income	36	64	118	172
Expenses
Research & engineering	177	189	524	595
General & administrative	105	115	330	323
Impairments & other			184	510
Merger & integration		49		213
Interest	147	142	434	422
Income before taxes	787	677	1,976	1,027
Tax expense	129	121	348	269
Net income	658	556	1,628	758
Net income attributable to noncontrolling interests	14	11	29	9
Net income attributable to Schlumberger	$ 644	$ 545	$ 1,599	$ 749
Basic earnings per share of Schlumberger	$ 0.46	$ 0.39	$ 1.15	$ 0.54
Diluted earnings per share of Schlumberger	$ 0.46	$ 0.39	$ 1.15	$ 0.54
Average shares outstanding:
Basic	1,385	1,385	1,385	1,388
Assuming dilution	1,392	1,392	1,393	1,395
Services
Revenue
Total Revenue	$ 6,345	$ 5,763	$ 18,222	$ 15,928
Expenses
Cost of services and sales	5,336	4,816	15,414	13,507
Product
Revenue
Total Revenue	2,159	2,142	6,414	6,333
Expenses
Cost of services and sales	$ 1,988	$ 1,981	$ 5,892	$ 5,836