Income Taxes (Components of Earnings Before Income Taxes) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2015	Sep. 28, 2014	Sep. 29, 2013
Income Tax Disclosure [Abstract]
United States, Total	$ 2,837.2	$ 2,572.4	$ (674.0)
United States, Related to litigation charge			(2,784.1)
United States, All Other			2,110.1
Foreign, Total	1,065.8	587.3	444.1
Foreign, Related to litigation charge			0.0
Foreign, All Other			444.1
Earnings/(loss) before income taxes	$ 3,903.0	$ 3,159.7	(229.9)
Earnings before income taxes, Related to litigation charge			(2,784.1)
Earnings before income taxes, All Other			$ 2,554.2