Condensed Consolidated Statements of Operations (Unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2017	Mar. 31, 2016
Net revenues:
Product	$ 828.9	$ 753.0
Service	392.1	344.9
Total net revenues	1,221.0	1,097.9
Cost of revenues:
Product	330.2	277.9
Service	144.2	129.1
Total cost of revenues	474.4	407.0
Gross margin	746.6	690.9
Operating expenses:
Research and development	276.2	251.0
Sales and marketing	244.2	231.8
General and administrative	50.5	59.4
Restructuring charges	19.4	0.0
Total operating expenses	590.3	542.2
Operating income	156.3	148.7
Other expense, net	(15.7)	(22.2)
Income before income taxes	140.6	126.5
Income tax provision	31.8	35.1
Net income	$ 108.8	$ 91.4
Net income per share:
Basic, in dollars per share	$ 0.29	$ 0.24
Diluted, in dollars per share	$ 0.28	$ 0.23
Shares used in computing net income per share:
Basic (in shares)	380.9	383.2
Diluted (in shares)	388.0	389.3
Cash dividends declared per common stock (in dollars per share)	$ 0.10	$ 0.10