Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	6 Months Ended		12 Months Ended
	Dec. 30, 2022	Jun. 16, 2022	Dec. 31, 2021	Dec. 25, 2020
Property, Plant and Equipment [Line Items]
Depreciation	$ 28.8	$ 40.0	$ 94.7	$ 114.0
Property, plant and equipment, gross	485.0		1,886.6
Less: accumulated depreciation	(27.4)		(1,110.6)
Property, plant and equipment, net	457.6		776.0
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	51.0		43.5
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	127.2		387.8
Capitalized Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	17.5		121.1
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	216.8		1,254.1
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 72.5		$ 80.1