Condensed Consolidated Statements Of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jul. 01, 2022	Jun. 30, 2023	Jul. 01, 2022
Revenue:
Total revenue	$ 993.6	$ 941.2	$ 1,909.0	$ 1,934.9
Cost of sales:
Amortization of purchased intangible assets	30.2	21.0	53.2	43.5
Total cost of sales	389.1	403.7	743.7	847.8
Gross margin	604.5	537.5	1,165.3	1,087.1
Operating expense:
Research and development	174.8	140.1	334.1	280.4
Sales and marketing	155.3	138.9	290.7	270.8
General and administrative	141.3	106.9	252.0	208.4
Restructuring	7.6	5.4	14.3	12.3
Amortization of purchased intangible assets	31.9	11.3	43.6	23.4
Total operating expense	510.9	402.6	934.7	795.3
Operating income	93.6	134.9	230.6	291.8
Non-operating income (expense), net:
Divestitures gain, net	1.1	106.0	5.1	97.1
Interest expense, net	(46.7)	(15.3)	(66.4)	(31.3)
Income from equity method investments, net	8.0	5.8	19.4	15.5
Other income (expense), net	1.5	(9.8)	29.4	(13.0)
Total non-operating income (expense), net	(36.1)	86.7	(12.5)	68.3
Income before taxes	57.5	221.6	218.1	360.1
Income tax provision	12.9	53.6	44.7	81.8
Net income	$ 44.6	$ 168.0	$ 173.4	$ 278.3
Earnings per share:
Basic (in usd per share)	$ 0.18	$ 0.67	$ 0.70	$ 1.11
Diluted (in usd per share)	$ 0.18	$ 0.67	$ 0.70	$ 1.11
Shares used in calculating earnings per share:
Basic (in shares)	248.1	249.2	247.7	250.0
Diluted (in shares)	249.0	250.7	248.9	251.7
Product
Revenue:
Total revenue	$ 490.5	$ 531.0	$ 924.9	$ 1,097.8
Cost of sales:
Cost of sales	233.9	268.8	450.1	575.7
Subscription and services
Revenue:
Total revenue	503.1	410.2	984.1	837.1
Cost of sales:
Cost of sales	$ 125.0	$ 113.9	$ 240.4	$ 228.6