Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Dec. 31, 2012
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,811	$ 1,680
Accumulated Amortization	(927)	(919)
Net	884	761
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	520	516
Accumulated Amortization	(350)	(342)
Net	170	174
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,140	1,010
Accumulated Amortization	(496)	(491)
Net	644	519
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	121	120
Accumulated Amortization	(55)	(57)
Net	66	63
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	30	34
Accumulated Amortization	(26)	(29)
Net	$ 4	$ 5