Business Combinations, Intangibles and Goodwill - Intangible Assets (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	$ 4,270	$ 4,276
Accumulated Amortization	(2,437)	(2,241)
Net Book Value	1,833	2,035
Purchased Technology
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	2,236	2,233
Accumulated Amortization	(1,318)	(1,207)
Net Book Value	918	1,026
Patents
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	225	225
Accumulated Amortization	(94)	(87)
Net Book Value	131	138
Software Licenses
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	99	96
Accumulated Amortization	(90)	(88)
Net Book Value	9	8
Trademarks And Tradenames
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	171	173
Accumulated Amortization	(110)	(102)
Net Book Value	61	71
Customer Relationships And Customer Lists
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	1,359	1,378
Accumulated Amortization	(790)	(724)
Net Book Value	569	654
In Process Research And Development
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	9
Accumulated Amortization	0
Net Book Value	9
Leasehold Interest
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	145	145
Accumulated Amortization	(9)	(7)
Net Book Value	136	138
Other Intangible Assets
Schedule of Intangible Assets, Excluding Goodwill [Line Items]
Gross Carrying Amount	26	26
Accumulated Amortization	(26)	(26)
Net Book Value	$ 0	$ 0