Inventories (Components of Inventories) (Details) - USD ($) $ in Millions	Sep. 27, 2015	Sep. 28, 2014
Inventory Disclosure [Abstract]
Unroasted coffee	$ 529.4	$ 432.3
Roasted coffee	279.7	238.9
Other merchandise held for sale	318.3	265.7
Packaging and other supplies	179.0	154.0
Total	$ 1,306.4	$ 1,090.9