Condensed Consolidated Statements of Operations (Unaudited) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		6 Months Ended
	Jun. 30, 2014	Jun. 30, 2013	Jun. 30, 2014	Jun. 30, 2013
Net revenues:
Product	$ 929.2	$ 863.8	$ 1,805.2	$ 1,645.6
Service	300.3	286.9	594.4	564.3
Total net revenues	1,229.5	1,150.7	2,399.6	2,209.9
Cost of revenues:
Product	359.3	321.3	685.9	599.5
Service	122.0	108.9	245.4	219.1
Total cost of revenues	481.3	430.2	931.3	818.6
Gross margin	748.2	720.5	1,468.3	1,391.3
Operating expenses:
Research and development	255.5	257.7	519.5	519.9
Sales and marketing	258.0	267.1	531.4	523.2
General and administrative	60.6	49.2	135.5	107.7
Restructuring and other charges	58.2	8.0	172.2	15.0
Total operating expenses	632.3	582.0	1,358.6	1,165.8
Operating income	115.9	138.5	109.7	225.5
Other income (expense), net	178.6	(12.6)	332.8	(22.7)
Income before income taxes	294.5	125.9	442.5	202.8
Income tax provision	73.4	28.0	110.8	13.9
Net income	$ 221.1	$ 97.9	$ 331.7	$ 188.9
Net income per share:
Basic	$ 0.47	$ 0.19	$ 0.69	$ 0.37
Diluted	$ 0.46	$ 0.19	$ 0.68	$ 0.37
Shares used in computing net income per share:
Basic (in shares)	470.3	503.0	478.1	503.8
Diluted (in shares)	476.5	506.3	487.3	510.4