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Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($)
$ in Millions
Sep. 27, 2019
Dec. 28, 2018
Property, Plant and Equipment    
Property, plant and equipment, gross $ 1,880.9 $ 1,936.2
Less: accumulated depreciation (986.2) (954.2)
Property, plant and equipment, net $ 894.7 $ 982.0