Derivative and Financial Instruments (Notional Amounts of Outstanding Derivative Contracts) (Details) (USD $) In Millions, unless otherwise specified	Jun. 30, 2013	Sep. 30, 2012
Interest Rate Swap [Member]
Notional amounts of outstanding derivative contracts	$ 750	$ 0
Foreign Exchange Contract [Member]
Notional amounts of outstanding derivative contracts	393	383
Coffee Contracts [Member]
Notional amounts of outstanding derivative contracts	3	125
Dairy Contracts [Member]
Notional amounts of outstanding derivative contracts	34	72
Diesel Contracts [Member]
Notional amounts of outstanding derivative contracts	$ 5	$ 24