Goodwill and Other Intangible Assets - Components of Other Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Dec. 31, 2012
Schedule of Intangible Assets By Major Class [Line Items]
Gross Carrying Amount	$ 716	$ 720
Accumulated Impairment and Amortization	(413)	(395)
Net Carrying Amount	303	325
Amortizable Intangible Assets | Core Technology
Schedule of Intangible Assets By Major Class [Line Items]
Weighted Average Useful Life (years)	7 years
Gross Carrying Amount	92	93
Accumulated Impairment and Amortization	(72)	(69)
Net Carrying Amount	20	24
Amortizable Intangible Assets | Trademarks And Trade Names
Schedule of Intangible Assets By Major Class [Line Items]
Weighted Average Useful Life (years)	16 years
Gross Carrying Amount	4	4
Accumulated Impairment and Amortization	(1)	(1)
Net Carrying Amount	3	3
Amortizable Intangible Assets | Customer Relationships
Schedule of Intangible Assets By Major Class [Line Items]
Weighted Average Useful Life (years)	8 years
Gross Carrying Amount	535	538
Accumulated Impairment and Amortization	(340)	(325)
Net Carrying Amount	195	213
Non Amortizable Intangible Assets | Trademarks And Trade Names
Schedule of Intangible Assets By Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	65	65
Non Amortizable Intangible Assets | Used in research and development activities
Schedule of Intangible Assets By Major Class [Line Items]
Indefinite-Lived Intangible Assets (Excluding Goodwill)	$ 20	$ 20