Transactions With Related Parties (Details) (John Tyson, certain members of the Tyson family, the Donald J. Tyson Revocable Trust and the Randal W. Tyson Testamentary Trust [Member], USD $) In Millions, unless otherwise specified	12 Months Ended
	Sep. 29, 2012	Oct. 01, 2011	Oct. 02, 2010
Related Party Transaction [Line Items]
Payments of operating leases for an airplane and two wastewater facilities	$ 2	$ 2	$ 2
Wastewater Plant [Member]
Related Party Transaction [Line Items]
Operating Lease, Number of Leases	2
Airplane [Member]
Related Party Transaction [Line Items]
Operating Lease, Number of Leases	1