Income Taxes (Schedule of Deferred Taxes Balance Sheet Location) (Details) - USD ($) $ in Millions	Sep. 30, 2016	Sep. 25, 2015
Income Tax Disclosure [Abstract]
Deferred income taxes (current asset)	$ 0.0	$ 139.2
Other non-current assets	24.1	6.6
Accrued and other current liabilities	0.0	(4.2)
Deferred income taxes (non-current liability)	(2,581.4)	(3,117.5)
Deferred Tax Liabilities, Net	$ (2,557.3)	$ (2,975.9)