Consolidated Statements of Comprehensive Income (Loss) (Parenthetical) (USD $) In Millions, unless otherwise specified	12 Months Ended
Dec. 31, 2014	Dec. 31, 2013	Dec. 31, 2012
Other Comprehensive Income (Loss), Derivatives Qualifying as Hedges, Tax Effect [Abstract]
Gain (loss) on derivatives qualifying as cash flow hedges, net of tax (benefit)	$ 0	$ 0	$ 0
Less: Reclassification adjustment for gain (loss) on derivatives included in net income, net of tax (benefit)	0	0	0
Derivatives qualifying as cash flow hedges, net of tax (benefit)	0	0	0
Other Comprehensive Income (Loss), Pension and Other Postretirement Benefit Plans, Tax [Abstract]
Changes in pension and postretirement benefits, net of tax (benefit)	(2)	10	(7)
Less: Amortization of prior service benefit (cost) included in net periodic pension cost, net of tax (benefit)	(1)	(2)	(1)
Pension and postretirement benefits, net of tax benefit	(1)	12	(6)
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax [Abstract]
Changes in foreign currency translation, net of tax	0	0	0
Less: Translation gains realized upon sale of foreign entities, net of tax	0	0	0
Foreign currency translation, net of tax	$ 0	$ 0	$ 0

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+ References

Reference 1: http://www.xbrl.org/2003/role/presentationRef

-Publisher FASB

-Name Accounting Standards Codification

-Topic 220

-SubTopic 10

-Section 45

-Paragraph 10A

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