CONSOLIDATED STATEMENT OF INCOME (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement - CONSOLIDATED STATEMENT OF INCOME [Line Items]
Revenue	$ 11,608	$ 10,498	$ 33,360	$ 30,648
Interest & other income	43	44	105	137
Gain on formation of OneSubsea			1,028
Expenses
Cost of revenue	8,926	8,237	26,047	24,124
Research & engineering	286	291	870	849
General & administrative	110	95	305	294
Merger & integration		32		68
Impairment & other			456
Interest	98	89	294	246
Income before taxes	2,231	1,798	6,521	5,204
Taxes on income	506	436	1,361	1,268
Income from continuing operations	1,725	1,362	5,160	3,936
Income (loss) from discontinued operations		65	(69)	211
Net income	1,725	1,427	5,091	4,147
Net income attributable to noncontrolling interests	10	3	23	20
Net income attributable to Schlumberger	1,715	1,424	5,068	4,127
Schlumberger amounts attributable to:
Income from continuing operations	1,715	1,359	5,137	3,916
Income (loss) from discontinued operations		65	(69)	211
Net income attributable to Schlumberger	$ 1,715	$ 1,424	$ 5,068	$ 4,127
Basic earnings per share of Schlumberger:
Income from continuing operations	$ 1.30	$ 1.02	$ 3.87	$ 2.94
Income (loss) from discontinued operations		$ 0.05	$ (0.05)	$ 0.16
Net income	$ 1.30	$ 1.07	$ 3.82	$ 3.10
Diluted earnings per share of Schlumberger:
Income from continuing operations	$ 1.29	$ 1.02	$ 3.84	$ 2.92
Income (loss) from discontinued operations		$ 0.05	$ (0.05)	$ 0.16
Net income	$ 1.29	$ 1.07	$ 3.79	$ 3.08
Average shares outstanding:
Basic	1,322	1,328	1,326	1,331
Assuming dilution	1,333	1,336	1,336	1,340