Income Taxes (Tables)

12 Months Ended

Dec. 31, 2014

Income Tax Disclosure [Abstract]

Schedule of Components of Income Tax Expense (Benefit)

Income tax provisions (benefits) for continuing operations were:

	Year Ended December 31,
	2014								2013							2012
(In millions)	Current		Deferred			Total			Current		Deferred			Total		Current			Deferred			Total
Federal	$	15	$	62		$	77		$	83	$	(47	)	$	36	$	(47	)	$	43		$	(4	)
State and local	8		(58		)	(50		)	39		(6		)	33		(34		)	48			14
Foreign	281		84			365			1,374		19			1,393		2,363			(125		)	2,238
Total	$	304	$	88		$	392		$	1,496	$	(34	)	$	1,462	$	2,282		$	(34	)	$	2,248

Schedule of Effective Income Tax Rate Reconciliation

A reconciliation of the federal statutory income tax rate applied to income from continuing operations before income taxes to the provision for income taxes follows:

	Year Ended December 31,
	2014		2013		2012
Statutory rate applied to income from continuing operations before income taxes	35	%	35	%	35	%
Effects of foreign operations, including foreign tax credits	(6	)	26		36
Change in permanent reinvestment assertion	(19	)	—		—
Adjustments to valuation allowances	21		(1	)	—
Other	(2	)	1		1
Effective income tax rate on continuing operations	29	%	61	%	72	%

Schedule of Deferred Tax Assets and Liabilities

Deferred tax assets and liabilities resulted from the following:

	Year Ended December 31,
(In millions)	2014			2013
Deferred tax assets:
Employee benefits	$	364		$	387
Operating loss carryforwards	245			284
Capital loss carryforwards	89			3
Foreign tax credits	4,062			5,730
Other	116			95
Valuation allowances:
Federal	(2,775		)	(2,997		)
State, net of federal benefit	(58		)	(67		)
Foreign	(108		)	(149		)
Total deferred tax assets	1,935			3,286
Deferred tax liabilities:
Property, plant and equipment	3,737			4,018
Investments in subsidiaries and affiliates	66			794
Other	67			67
Total deferred tax liabilities	3,870			4,879
Net deferred tax liabilities	$	1,935		$	1,593

Net Deferred Tax Assets Liabilities Table

Net deferred tax liabilities were classified in the consolidated balance sheets as follows:

	December 31,
(In millions)	2014		2013
Assets:
Other current assets	$	29	$	53
Other noncurrent assets	525		847
Liabilities:
Other current liabilities	3		1
Noncurrent deferred tax liabilities	2,486		2,492
Net deferred tax liabilities	$	1,935	$	1,593

Income Tax Returns Remaining Subject To Examination Table

As of December 31, 2014 our income tax returns remain subject to examination in the following major tax jurisdictions for the tax years indicated:

United States(a)	2004-2013
Canada	2009-2013
Equatorial Guinea	2007-2013
Libya	2012-2013
United Kingdom	2008-2013

^(a)  Includes federal and state jurisdictions.

Summary Of Activity In Unrecognized Tax Benefits Table

The following table summarizes the activity in unrecognized tax benefits:

(In millions)	2014			2013			2012
Beginning balance	$	146		$	98		$	157
Additions for tax positions related to the current year	—			14			—
Additions for tax positions of prior years	11			66			81
Reductions for tax positions of prior years	(68		)	(25		)	(67		)
Settlements	(9		)	(5		)	(72		)
Statute of limitations	—			(2		)	(1		)
Ending balance	$	80		$	146		$	98