Supplemental Balance Sheet Information (Property, Plant And Equipment, net) (Details) - USD ($) $ in Millions	Jan. 01, 2017	Oct. 02, 2016
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 10,611.7	$ 10,573.3
Accumulated depreciation	(6,133.2)	(6,039.5)
Property, plant and equipment, net	4,478.5	4,533.8
Land [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	46.5	46.6
Buildings [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	454.3	458.4
Leasehold Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	5,924.8	5,892.9
Store Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,927.6	1,931.7
Roasting Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	603.2	605.4
Furniture, Fixtures and Other [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	1,388.6	1,366.9
Work in Progress [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment, gross	$ 266.7	$ 271.4