Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Mar. 25, 2016	Sep. 25, 2015
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 1,938.3	$ 1,870.6
Less: accumulated depreciation	(938.9)	(879.3)
Property, plant and equipment, net	$ 999.4	$ 991.3