Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 2,018	$ 2,038
Accumulated Amortization	(1,064)	(1,048)
Net	954	990
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	562	560
Accumulated Amortization	(413)	(394)
Net	149	166
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,284	1,302
Accumulated Amortization	(567)	(570)
Net	717	732
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	132	134
Accumulated Amortization	(60)	(60)
Net	72	74
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	40	42
Accumulated Amortization	(24)	(24)
Net	$ 16	$ 18