Income Taxes (Schedule Of Deferred Tax Assets And Liabilities) (Details) - USD ($) $ in Millions	Jan. 03, 2020	Dec. 28, 2018
Income Tax Disclosure [Abstract]
Purchased intangibles	$ 158.7	$ 177.1
Global intangible low-taxed income	233.7
Operating lease right-of-use assets	35.3
Other	12.8	13.8
Total deferred tax liabilities	440.5	190.9
Expenses not currently deductible	28.0	33.4
Depreciation and amortization	471.5	7.3
U.S. tax credit carryforwards	34.2	30.3
U.S. net operating loss carryforwards	9.8	20.8
Foreign net operating loss carryforwards	16.2	16.9
Stock-based compensation	13.3	20.3
Global intangible low-taxed income		13.4
Operating lease liabilities	36.0
Other	14.1	14.7
Total deferred tax assets	623.1	157.1
Valuation allowance	(25.3)	(27.8)
Total deferred tax assets	597.8	129.3
Total net deferred tax assets		(61.6)
Non-current deferred income tax assets	475.5	12.2
Non-current deferred income tax liabilities	(318.2)	$ (73.8)
Deferred Tax Assets, Net	$ 157.3