Derivative and Financial Instruments (Notional Amounts of Outstanding Derivative Contracts) (Details) - USD ($) $ in Millions	Mar. 27, 2016	Sep. 27, 2015
Interest Rate Contract [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	$ 0	$ 125
Cross-Currency Swap [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	690	717
Foreign Currency Contract - Other [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	757	577
Coffee Contracts [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	28	38
Dairy Contracts [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	54	43
Diesel Fuel Contracts [Member]
Derivative [Line Items]
Notional amounts of outstanding derivative contracts	$ 30	$ 14