Income Taxes (Tables)

12 Months Ended

Dec. 31, 2015

Income Tax Disclosure [Abstract]

Income from Continuing Operations Before Taxes

Income from continuing operations before taxes subject to United States and non-United States income taxes for each of the three years ended December31, were as follows:

(Stated in millions)
	2015			2014		2013
United States.......................................	$	(691	)	$	1,990	$	1,904
Outside United States..................................		3,572			5,649		6,787
	$	2,881		$	7,639	$	8,691

Components of Net Deferred Tax Assets (Liabilities)

The components of net deferred tax assets (liabilities) were as follows:

(Stated in millions)
	2015			2014
Postretirement benefits.............................................	$	266		$	327
Intangible assets.................................................		(1,418	)		(1,435	)
Investments in non-US subsidiaries.....................................		(152	)		(227	)
Fixed assets, net.................................................		(176	)		(331	)
Inventories.....................................................		159			112
Other, net......................................................		454			402
	$	(867	)	$	(1,152	)

Components of Consolidated Income Taxes

The components of Taxes on income were as follows:

(Stated in millions)
	2015			2014			2013
Current:
United States-Federal..................................	$	90		$	718		$	682
United States-State....................................		12			51			60
Outside United States..................................		1,085			1,380			1,211
		1,187			2,149			1,953
Deferred:
United States-Federal..................................	$	(356	)	$	(194	)	$	(109	)
United States-State....................................		(19	)		(9	)		(4	)
Outside United States..................................		(52	)		(12	)		34
Valuation allowance...................................		(14	)		(6	)		(26	)
		(441	)		(221	)		(105	)
	$	746		$	1,928		$	1,848

Reconciliation of US Statutory Federal Tax Rate

A reconciliation of the United States statutory federal tax rate (35%)to the consolidated effective tax rate follows:

	2015			2014			2013
US federal statutory rate................................		35	%		35	%		35	%
Non-US income taxed at different rates......................		(13	)		(11	)		(12	)
Charges and credits (See Note 3)..........................		6			3			(2	)
Other............................................		(2	)		(2	)		-
		26	%		25	%		21	%

Reconciliation of Liabilities Associated with Uncertain Tax Provisions

A reconciliation of the beginning and ending amount of liabilities associated with uncertain tax positions for the years ended December31, 2015, 2014 and 2013 is as follows:

(Stated in millions)
	2015			2014			2013
Balance at beginning of year.............................	$	1,402		$	1,452		$	1,453
Additions based on tax positions related to the current year.........		140			154			146
Additions for tax positions of prior years.....................		136			96			109
Additions related to acquisitions...........................		5			43			-
Impact of changes in exchange rates........................		(78	)		(62	)		(47	)
Settlements with tax authorities...........................		(99	)		(27	)		(64	)
Reductions for tax positions of prior years....................		(203	)		(212	)		(109	)
Reductions due to the lapse of the applicable statute of limitations.....		(18	)		(42	)		(36	)
Balance at end of year.................................	$	1,285		$	1,402		$	1,452

Tax Years Subject to Examination by Tax Authorities

The following table summarizes the tax years that are either currently under audit or remain open and subject to examination by the tax authorities in the most significant jurisdictions in which Schlumberger operates:

Brazil......................................................	2010 - 2015
Canada.....................................................	2008 - 2015
Ecuador.....................................................	2012 - 2015
Mexico.....................................................	2007 - 2015
Norway.....................................................	2013 - 2015
Russia......................................................	2013 - 2015
Saudi Arabia.................................................	2001 - 2015
United Kingdom...............................................	2011 - 2015
United States.................................................	2014 - 2015