Condensed Consolidated Statements Of Income (unaudited) - USD ($) shares in Millions, $ in Millions	3 Months Ended		9 Months Ended
	Oct. 03, 2025	Sep. 27, 2024	Oct. 03, 2025	Sep. 27, 2024
Revenue:
Total revenue	$ 901.2	$ 875.8	$ 2,617.5	$ 2,699.9
Cost of sales:
Amortization of purchased intangible assets	16.4	18.9	48.9	74.7
Total cost of sales	280.1	300.2	837.7	984.8
Gross margin	621.1	575.6	1,779.8	1,715.1
Operating expense:
Research and development	152.9	155.6	474.7	487.3
Sales and marketing	158.8	147.1	470.4	436.4
General and administrative	117.5	127.6	356.6	410.4
Restructuring	14.2	2.4	22.7	14.1
Amortization of purchased intangible assets	27.2	26.5	79.6	79.7
Total operating expense	470.6	459.2	1,404.0	1,427.9
Operating income	150.5	116.4	375.8	287.2
Non-operating (expense) income, net:
Divestitures (loss) gain, net	(0.6)	(22.6)	4.2	1,695.0
Interest expense, net	(20.7)	(14.1)	(55.7)	(77.4)
(Loss) income from equity method investments, net	(0.5)	(0.6)	2.8	9.3
Other loss, net	(3.6)	(6.0)	(2.3)	(6.0)
Total non-operating (expense) income, net	(25.4)	(43.3)	(51.0)	1,620.9
Income before taxes	125.1	73.1	324.8	1,908.1
Income tax provision	13.6	32.5	57.4	493.9
Net income	$ 111.5	$ 40.6	$ 267.4	$ 1,414.2
Earnings per share:
Basic (in usd per share)	$ 0.47	$ 0.17	$ 1.11	$ 5.76
Diluted (in usd per share)	$ 0.46	$ 0.16	$ 1.10	$ 5.73
Shares used in calculating earnings per share:
Basic (in shares)	238.2	245.6	239.9	245.4
Diluted (in shares)	240.4	246.9	242.0	246.9
Product
Revenue:
Total revenue	$ 302.5	$ 307.6	$ 866.9	$ 995.1
Cost of sales:
Cost of sales	148.9	160.7	437.0	544.7
Subscription and services
Revenue:
Total revenue	598.7	568.2	1,750.6	1,704.8
Cost of sales:
Cost of sales	$ 114.8	$ 120.6	$ 351.8	$ 365.4