OTHER FINANCIAL INFORMATION (Property, Plant, And Equipment By Major Classification) (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Oct. 02, 2021	Sep. 26, 2020	Oct. 02, 2021	Sep. 26, 2020	Jan. 02, 2021
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 1,328.2		$ 1,328.2		$ 1,345.0
Less: Accumulated Depreciation	(814.1)		(814.1)		(789.5)
Net Property, Plant and Equipment	514.1		514.1		555.5
Asset Impairments	2.8	$ 0.0	5.1	$ 4.3
Land and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	72.3		72.3		76.1
Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	275.8		$ 275.8		290.7
Buildings and Improvements | Minimum
Property, Plant and Equipment [Line Items]
Useful life			3 years
Buildings and Improvements | Maximum
Property, Plant and Equipment [Line Items]
Useful life			50 years
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 980.1		$ 980.1		$ 978.2
Machinery and Equipment | Minimum
Property, Plant and Equipment [Line Items]
Useful life			3 years
Machinery and Equipment | Maximum
Property, Plant and Equipment [Line Items]
Useful life			15 years