Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Net revenues:
Product	$ 781.8	$ 771.9
Service	277.4	260.6
Total net revenues	1,059.2	1,032.5
Cost of revenues:
Product	278.2	280.6
Service	110.2	117.8
Total cost of revenues	388.4	398.4
Gross margin	670.8	634.1
Operating expenses:
Research and development	262.2	269.6
Sales and marketing	255.2	257.7
General and administrative	47.8	54.7
Amortization of purchased intangible assets	1.2	1.2
Restructuring charges	7.0	2.0
Acquisition and litigation charges	10.4	1.2
Total operating expenses	583.8	586.4
Operating income	87.0	47.7
Other expense, net	(10.1)	(24.4)
Income before income taxes	76.9	23.3
Income tax (benefit) provision	(14.1)	7.0
Net income	$ 91.0	$ 16.3
Net income per share:
Basic	$ 0.18	$ 0.03
Diluted	$ 0.18	$ 0.03
Shares used in computing net income per share:
Basic	504.7	527.2
Diluted	512.7	533.7