Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 25, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,615.7	$ 1,492.4
Less: accumulated depreciation	(771.7)	(699.4)
Property, plant and equipment, net	844.0	793.0
Land
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	46.8	47.1
Buildings
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	287.2	261.7
Capitalized Software
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	85.3	85.4
Machinery and Equipment
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,032.3	979.9
Construction in Progress
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 164.1	$ 118.3