Commitments And Contingencies (Narrative) (Details) (USD $)	12 Months Ended						12 Months Ended	3 Months Ended	12 Months Ended		1 Months Ended							0 Months Ended	1 Months Ended
	Oct. 01, 2011 years	Oct. 02, 2010	Oct. 03, 2009	Oct. 01, 2011 Minimum [Member] MDL Proceedings [Member]	Oct. 01, 2011 Maximum [Member] MDL Proceedings [Member]	Oct. 01, 2011 Obligations Of Certain Outside Third Parties Guarantees [Member] years	Oct. 01, 2011 Residual Value Guarantees [Member]	Mar. 29, 2008 MDL Proceedings [Member]	Oct. 01, 2011 MDL Proceedings [Member]	Oct. 20, 2010 Tyson Prepared Foods Plant [Member]	Jun. 30, 2005 State of Oklahoma [Member] A	Jun. 30, 2005 State of Oklahoma [Member] Poultry Integrators [Member]	Jun. 30, 2005 State of Oklahoma [Member] Subsidiaries [Member]	Jun. 30, 2009 Armstrong Case [Member]	May 08, 2008 Armstrong Case [Member]	May 08, 2008 Armstrong Case [Member] Employees [Member]	Oct. 30, 2009 Clardy Case [Member]	Mar. 17, 2011 Garcia Case [Member]	Sep. 26, 2011 Bouaphakeo Case [Member]	Apr. 30, 2010 Armstrong And Clardy Cases [Member]
Commitments and Contingencies [Line Items]
Total rentals	$ 183,000,000	$ 188,000,000	$ 175,000,000
Lease, maximum initial term	7
Guarantee obligations, maximum period of exposure						10
Maximum potential amount						76,000,000	50,000,000
Amount recoverable through various recourse provisions							43,000,000
Material liabilities for guarantees	0	0
Potential maximum obligation	220,000,000
Total receivables under cash flow assistance programs	28,000,000	51,000,000
Uncollectible receivables	10,000,000	15,000,000
Number of cases filed								5
Wage and hour actions										12
Loss contingency, damages											800,000,000
Number of plaintiffs										6				10
Number of poultry growers															52		20
Number of defendants to the lawsuit												6	3			2
Area of land encompassed, acres											1,000,000
Final judgment amount																				8,655,735
Settlement agreement, date	September 15, 2011
Settlement agreement, expense no more than				12,250,000	17,500,000													503,011	2,892,379
Settlement agreement, Process	The settlement agreement provides a process for identifying and certifying eligible class members, which includes a 75-day notice period for certain class members to become eligible for payment under the settlement.
Legal Fees									$ 14,500,000									$ 3,475,422