Supplemental Financial Information (Details 6) (USD $) In Millions, unless otherwise specified	Sep. 30, 2012	Dec. 31, 2011
Amortization of Existing Purchased Intangible Assets
Purchased Intangible Asset Amortization, 2012	$ 81
Purchased Intangible Asset Amortization, 2013	230
Purchased Intangible Asset Amortization, 2014	285
Purchased Intangible Asset Amortization, 2015	249
Purchased Intangible Asset Amortization, 2016	209
Purchased Intangible Asset Amortization, Thereafter	807
Purchased intangible assets, Net	1,861	400
Cost of product revenue [Member]
Amortization of Existing Purchased Intangible Assets
Purchased Intangible Asset Amortization, 2012	50
Purchased Intangible Asset Amortization, 2013	173
Purchased Intangible Asset Amortization, 2014	222
Purchased Intangible Asset Amortization, 2015	218
Purchased Intangible Asset Amortization, 2016	200
Purchased Intangible Asset Amortization, Thereafter	800
Purchased intangible assets, Net	1,663
Other operating expenses [Member]
Amortization of Existing Purchased Intangible Assets
Purchased Intangible Asset Amortization, 2012	31
Purchased Intangible Asset Amortization, 2013	57
Purchased Intangible Asset Amortization, 2014	63
Purchased Intangible Asset Amortization, 2015	31
Purchased Intangible Asset Amortization, 2016	9
Purchased Intangible Asset Amortization, Thereafter	7
Purchased intangible assets, Net	$ 198