Derivative Financial Instruments (Aggregate Outstanding Notionals Related To Undesignated Positions) (Details) (Nondesignated [Member], USD $) In Millions, unless otherwise specified	Oct. 01, 2011	Oct. 02, 2010
Corn, In Bushels [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	17,000,000	38,000,000
Live Cattle, In Pounds [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	72,000,000	73,000,000
Lean Hogs, In Pounds [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	19,000,000	134,000,000
Soy Meal, In Tons [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	174,600	367,000
Soy Oil, In Pounds [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	13,000,000	2,000,000
Natural Gas, In British Thermal Units [Member] | Commodity [Member]
Derivative [Line Items]
Aggregate notional of undesignated derivatives	0	450,000,000,000
Interest Rate [Member]
Derivative [Line Items]
Notional amount of undesignated commodity derivatives	39	53
Foreign Currency [Member]
Derivative [Line Items]
Notional amount of undesignated commodity derivatives	110	146