Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	Mar. 31, 2016	Dec. 31, 2015
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,053	$ 2,010
Accumulated Amortization	(1,138)	(1,082)
Net	915	928
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	576	572
Accumulated Amortization	(432)	(421)
Net	144	151
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,300	1,267
Accumulated Amortization	(611)	(574)
Net	689	693
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	137	132
Accumulated Amortization	(67)	(61)
Net	70	71
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	40	39
Accumulated Amortization	(28)	(26)
Net	$ 12	$ 13