Derivative Financial Instruments (Aggregate Outstanding Notionals) (Details) lb in Millions, bu in Millions, $ in Millions	Jul. 01, 2017 USD ($) bu lb T	Oct. 01, 2016 USD ($) bu lb T
Corn (in bushels)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | bu	52	50
Soy Meal (in tons)
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount | T	705,900	389,700
Live Cattle [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	347	28
Lean Hogs [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	309	158
Feeder Cattle [Member]
Derivative [Line Items]
Derivative, Nonmonetary Notional Amount	97	0
Foreign Currency [Member]
Derivative [Line Items]
Derivative, Notional Amount | $	$ 63	$ 38