Goodwill and Other Purchased Intangible Assets (Intangible Assets) (Details) (USD $) In Millions, unless otherwise specified	Mar. 31, 2014	Dec. 31, 2013
Finite-Lived Intangible Assets [Line Items]
Gross	$ 1,860	$ 1,888
Accumulated Amortization	(799)	(744)
Net	1,061	1,144
Developed technology
Finite-Lived Intangible Assets [Line Items]
Gross	1,543	1,492
Accumulated Amortization	(586)	(539)
Net	957	953
In-process research and development
Finite-Lived Intangible Assets [Line Items]
Gross	51	130
Accumulated Amortization	0	0
Net	51	130
Customer relationships
Finite-Lived Intangible Assets [Line Items]
Gross	232	232
Accumulated Amortization	(184)	(176)
Net	48	56
Other
Finite-Lived Intangible Assets [Line Items]
Gross	34	34
Accumulated Amortization	(29)	(29)
Net	$ 5	$ 5