Inventories (Narrative) (Details) - USD ($)	3 Months Ended
	Dec. 31, 2017	Oct. 01, 2017	Jan. 01, 2017
Inventory [Line Items]
Roasted Coffee Inventory	$ 283,900,000	$ 301,100,000	$ 255,700,000
Price-to-be-fixed Contract [Member]
Inventory [Line Items]
Amount of coffee committed to be purchased	369,000,000
Fixed-price Contract [Member]
Inventory [Line Items]
Amount of coffee committed to be purchased	762,000,000
Designated as Hedging Instrument [Member]
Inventory [Line Items]
Derivative Assets	$ 0