Consolidated Statements Of Cash Flows - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2021	Jan. 03, 2020	Dec. 28, 2018
Cash flows from operating activities:
Net income	$ 390.6	$ 514.5	$ 283.3
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation expense	39.7	39.4	35.6
Amortization expense	157.8	167.8	179.6
Provision for credit losses	7.1	6.5	3.4
Deferred income taxes	(52.9)	(220.2)	(47.6)
Non-cash restructuring expense	11.4	2.1	0.5
Stock-based compensation	83.0	75.0	76.9
(Income) loss from equity method investments, net of dividends	(21.0)	(7.8)	1.9
Provision for excess and obsolete inventories	16.2	7.3	7.2
Other, net	16.5	(10.4)	10.2
(Increase) decrease in assets:
Accounts receivable, net	(14.0)	(96.0)	(51.0)
Inventories	(5.0)	(21.3)	(45.0)
Other current and non-current assets	2.5	11.0	(17.6)
Increase (decrease) in liabilities:
Accounts payable	(15.7)	14.5	(2.0)
Accrued compensation and benefits	34.9	(46.4)	18.6
Deferred revenue	65.7	148.2	76.3
Other current and non-current liabilities	(44.8)	0.8	(43.6)
Net cash provided by operating activities	672.0	585.0	486.7
Cash flow from investing activities:
Acquisitions of businesses, net of cash acquired	(201.9)	(220.8)	(1,763.5)
Purchases of property and equipment	(56.8)	(69.0)	(67.6)
Purchases of short-term investments	0.0	0.0	(24.0)
Proceeds from maturities of short-term investments	0.0	0.0	6.2
Proceeds from sales of short-term investments	0.0	0.0	196.8
Other, net	26.9	14.5	2.5
Net cash used in investing activities	(231.8)	(275.3)	(1,649.6)
Cash flows from financing activities:
Issuance of common stock, net of tax withholdings	10.0	29.1	40.2
Repurchase of common stock	(81.6)	(179.8)	(93.0)
Proceeds from debt and revolving credit lines	1,173.8	1,195.4	2,976.4
Payments on debt and revolving credit lines	(1,486.0)	(1,322.9)	(1,925.1)
Other, net	(16.5)	(14.4)	(9.1)
Net cash provided by (used in) financing activities	(400.3)	(292.6)	989.4
Effect of exchange rate changes on cash and cash equivalents	8.6	(0.4)	(12.5)
Net increase (decrease) in cash and cash equivalents	48.5	16.7	(186.0)
Cash and cash equivalents - beginning of fiscal year	189.2	172.5	358.5
Cash and cash equivalents - end of fiscal year	237.7	189.2	172.5
Supplemental cash flow disclosure:
Cash paid for income taxes, net	59.0	63.1	62.3
Interest paid	$ 71.8	$ 79.2	$ 69.3