Derivative Financial Instruments (Aggregate Outstanding Notionals Related To Undesignated Positions) (Details) - Not Designated as Hedging Instrument [Member] lb in Millions, bu in Millions, $ in Millions	Jun. 27, 2015 USD ($) bu lb T	Sep. 27, 2014 USD ($) bu lb T
Corn (in bushels)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bu	44	0
Soy Meal (in tons)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | T	540,100	195,800
Soy Oil (in pounds)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	68	3
Live Cattle (in pounds)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	12	22
Lean Hogs (in pounds)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	12	22
Foreign Currency [Member]
Derivative [Line Items]
Derivative, Notional Amount | $	$ 19	$ 108