Acquisition of Cameron - Schedule of Supplemental Pro Forma Financial Information from Results of Operations (Detail) - USD ($) $ / shares in Units, $ in Millions	3 Months Ended	9 Months Ended
Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Business Combinations [Abstract]
Revenues	$ 7,019	$ 10,694	$ 22,331	$ 34,473
Net income (loss) attributable to Schlumberger	$ 353	$ 1,103	$ (1,028)	$ 2,987
Diluted earnings (loss) per share	$ 0.25	$ 0.78	$ (0.74)	$ 2.10

The pro forma diluted net income per share for a period as if the business combination or combinations had been completed at the beginning of a period.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 805
-SubTopic 10
-Section 50
-Paragraph 2
-Subparagraph (h)(2)-(3)
-URI http://asc.fasb.org/extlink&oid=65885119&loc=d3e1392-128463

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The pro forma net Income or Loss for the period as if the business combination or combinations had been completed at the beginning of a period.

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The pro forma revenue for a period as if the business combination or combinations had been completed at the beginning of the period.

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