Goodwill and Other Identifiable Intangible Assets (Identifiable Intangible Assets with Finite Lives) (Details) - USD ($) $ in Millions	Jun. 30, 2015	Dec. 31, 2014
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	$ 1,992	$ 2,038
Accumulated Amortization	(1,068)	(1,048)
Net	924	990
Acquired technology [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	562	560
Accumulated Amortization	(405)	(394)
Net	157	166
Customer-related intangibles [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	1,249	1,302
Accumulated Amortization	(577)	(570)
Net	672	732
Tradenames [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	140	134
Accumulated Amortization	(60)	(60)
Net	80	74
Other [Member]
Acquired Finite-Lived Intangible Assets [Line Items]
Gross Carrying Amount	41	42
Accumulated Amortization	(26)	(24)
Net	$ 15	$ 18