Summary of Significant Accounting Policies (Narrative) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended				12 Months Ended
	Sep. 29, 2013	Jun. 30, 2013	Mar. 31, 2013	Dec. 30, 2012	Sep. 28, 2014	Sep. 29, 2013	Sep. 30, 2012
Accounting Policies [Abstract]
Number of reportable segments					4
Receivables, net of Allowance for Doubtful Accounts
Allowance for doubtful accounts	$ 5.7				$ 6.7	$ 5.7
Inventories
Inventory reserves	52.0				31.2	52.0
Property, Plant and Equipment [Line Items]
Net disposition charges on property, plant and equipment					14.7	17.4	16.5
Net impairment charges on property, plant and equipment					19.0	12.7	15.2
Other Intangible Assets
Other intangible asset impairment charges					0	0	0
Revenue Recognition
Breakage income					38.3	33.0	65.8
Marketing & Advertising
Marketing expenses					315.5	306.8	277.9
Advertising expenses					198.9	205.8	182.4
Asset Retirement Obligations
Net ARO assets included in property, plant and equipment	3.8				4.1	3.8
Net ARO liabilities included in other long-term liabilities	27.7				28.4	27.7
Correction of an Immaterial Error
Description of immaterial error correction					Effective at the beginning of fiscal 2014, we reclassified certain fees related to our US and Seattle's Best Coffee foodservice operations in our Channel Development segment and All Other Segments, respectively, from other operating expenses to foodservice revenues included in CPG, foodservice and other net revenues in our consolidated statements of earnings. This reclassification results from a correction of an error in our prior period financial statements which we have determined to be immaterial.
Reclassification resulting from correction of an immaterial error	$ 6.2	$ 6.4	$ 6.3	$ 6.4		$ 25.4	$ 22.7
Leasehold improvements [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment, in years					10 years
Maximum [Member]
Derivative [Line Items]
Derivative instruments maturity, in years					3 years
Maximum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment, in years					15 years
Maximum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment, in years					40 years
Minimum [Member] | Equipment [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment, in years					2 years
Minimum [Member] | Buildings [Member]
Property, Plant and Equipment [Line Items]
Estimated useful life of property, plant and equipment, in years					30 years