Summary of Accounting Policies (Tables)

12 Months Ended

Dec. 31, 2015

Accounting Policies [Abstract]

Reconciliation of Earnings Per Share from Continuing Operations

The following is a reconciliation from basic to diluted earnings per share from continuing operations of Schlumberger for each of the last three years:

(Stated in millions, except per share amounts)
	Schlumberger Income from Continuing Operations		Average Shares Outstanding		Earnings per Share from Continuing Operations
2015:
Basic...............................................	$	2,072		1,267	$	1.63
Assumed exercise of stock options..........................		-		4
Unvested restricted stock.................................		-		4
Diluted.............................................	$	2,072		1,275	$	1.63
2014:
Basic...............................................	$	5,643		1,295	$	4.36
Assumed exercise of stock options...........................		-		9
Unvested restricted stock..................................		-		4
Diluted.............................................	$	5,643		1,308	$	4.31
2013:
Basic...............................................	$	6,801		1,323	$	5.14
Assumed exercise of stock options...........................		-		6
Unvested restricted stock..................................		-		4
Diluted.............................................	$	6,801		1,333	$	5.10