Business Combinations and Divestitures - Divestitures (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011	Jun. 22, 2012
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax [Abstract]
Loss before income taxes	$ (15)	$ (3)	$ (151)
Loss from discontinued operations, net of tax	(9)	6	(93)
Asset Impairment Charges			88
Entertainment Business [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Cash consideration for disposition of assets				100
Total assets sold				67
Property, plant and equipment sold				51
Inventory sold				15
Intangible assets sold				1
Software and services margin threshold triggering additional payment	25
Period that purchaser may procure certain hardware, software or services	5 years
Discontinued Operation, Income (Loss) from Discontinued Operation During Phase-out Period, Net of Tax [Abstract]
Revenue		62	152
Operating expenses		101	299
Loss from operations		(39)	(147)
Gain from divestiture of the business		33	0
Loss before income taxes		(6)	(147)
Income tax benefit		(2)	(51)
Loss from discontinued operations, net of tax		$ (4)	$ (96)