Business Enterprise Segments, Significant Customer and Geographical Information (Details 1) (USD $) In Millions, unless otherwise specified	1 Months Ended	3 Months Ended			9 Months Ended
	Jun. 30, 2011	Sep. 30, 2012	Sep. 30, 2011	Mar. 31, 2011	Sep. 30, 2012	Sep. 30, 2011
Segment Reporting Information [Line Items]
Net revenue		$ 2,128	$ 1,957		$ 5,926	$ 5,569
Impairments of long-lived assets		48	9	9	85	92
Settlement costs (gains)		(2)	27		86	(23)
Restructuring costs, net		2	17		6	17
Charitable contribution	25	0	0		0	25
Income from operations		211	270		413	674
All Other [Member]
Segment Reporting Information [Line Items]
Net revenue		43	52		143	156
Stock-based compensation		128	121		415	402
Amortization of purchased intangible assets		87	20		230	65
Amortization of acquired inventory valuation step-up		7	9		72	19
Non recurring legal fees		0	0		0	25
Employer payroll tax on certain stock option exercises		4	0		8	5
Miscellaneous corporate allocation variances		(14)	(7)		(41)	0
Total other operating costs and expenses		260	196		861	627
Income from operations		$ (217)	$ (144)		$ (718)	$ (471)