Condensed Consolidated Statements Of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended
	Mar. 31, 2023	Apr. 01, 2022
Revenue:
Total revenue	$ 915.4	$ 993.7
Cost of sales:
Amortization of purchased intangible assets	23.0	22.5
Total cost of sales	354.6	444.1
Gross margin	560.8	549.6
Operating expense:
Research and development	159.3	140.3
Sales and marketing	135.4	131.9
General and administrative	110.7	101.5
Restructuring	6.7	6.9
Amortization of purchased intangible assets	11.7	12.1
Total operating expense	423.8	392.7
Operating income	137.0	156.9
Non-operating income (expense), net:
Interest expense, net	(19.7)	(16.0)
Income from equity method investments, net	11.4	9.7
Other income (expense), net	31.9	(12.1)
Total non-operating income (expense), net	23.6	(18.4)
Income before taxes	160.6	138.5
Income tax provision	31.8	28.2
Net income	$ 128.8	$ 110.3
Earnings per share:
Basic (in usd per share)	$ 0.52	$ 0.44
Diluted (in usd per share)	$ 0.52	$ 0.44
Shares used in calculating earnings per share:
Basic (in shares)	247.2	250.8
Diluted (in shares)	248.7	252.8
Product
Revenue:
Total revenue	$ 434.4	$ 566.8
Cost of sales:
Cost of sales	216.2	306.9
Subscription and services
Revenue:
Total revenue	481.0	426.9
Cost of sales:
Cost of sales	$ 115.4	$ 114.7