Accounting Policies (Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 30, 2017	Dec. 31, 2016
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 1,359.5	$ 1,287.0
Less: Accumulated Depreciation	(736.5)	(659.5)
Net Property, Plant and Equipment	623.0	627.5
Land and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	78.2	76.7
Buildings and Improvements
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	294.5	280.4
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, Plant and Equipment	$ 986.8	$ 929.9
Minimum
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Minimum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Minimum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Useful Life	3 years
Maximum
Property, Plant and Equipment [Line Items]
Useful Life	50 years
Maximum | Buildings and Improvements
Property, Plant and Equipment [Line Items]
Useful Life	50 years
Maximum | Machinery and Equipment
Property, Plant and Equipment [Line Items]
Useful Life	15 years