Document and Entity Information	3 Months Ended
	Mar. 31, 2016 shares
Document And Entity Information [Abstract]
Document Type	10-Q
Amendment Flag	false
Document Period End Date	Mar. 31, 2016
Document Fiscal Year Focus	2016
Document Fiscal Period Focus	Q1
Trading Symbol	SLB
Entity Registrant Name	SCHLUMBERGER LTD /NV/
Entity Central Index Key	0000087347
Current Fiscal Year End Date	--12-31
Entity Filer Category	Large Accelerated Filer
Entity Common Stock, Shares Outstanding	1,252,334,169