Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions	Jun. 26, 2015	Sep. 26, 2014
Property, Plant and Equipment [Abstract]
Property, plant and equipment, gross	$ 2,003.8	$ 1,888.4
Less: accumulated depreciation	(988.3)	(939.2)
Property, plant and equipment, net	$ 1,015.5	$ 949.2