Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 25, 2020	Dec. 27, 2019
Property, Plant and Equipment [Line Items]
Depreciation	$ 94.7	$ 114.0	$ 97.7
Property, plant and equipment, gross	1,886.6	1,910.9
Less: accumulated depreciation	(1,110.6)	(1,077.8)
Property, plant and equipment, net	776.0	833.1
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	43.5	43.6
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	387.8	416.9
Capitalized Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	121.1	134.0
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,254.1	1,260.4
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 80.1	$ 56.0