Segment Reporting (Segment Reporting Information, By Segment) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			6 Months Ended
	Mar. 29, 2014	Mar. 30, 2013		Mar. 29, 2014	Mar. 30, 2013
Segment Reporting Information [Line Items]
Sales	$ 9,032	$ 8,383		$ 17,793	$ 16,749
Operating Income (Loss)	361	236		773	540
Total Other (Income) Expense	20	15	[1]	49	51	[1]
Income from Continuing Operations before Income Taxes	341	221		724	489
Operating Segments [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Sales	2,842	2,733		5,498	5,328
Operating Income (Loss)	234	143		487	256
Operating Segments [Member] | Beef [Member]
Segment Reporting Information [Line Items]
Sales	3,825	3,447		7,559	6,932
Operating Income (Loss)	35	(26)		93	20
Operating Segments [Member] | Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,487	1,311		2,911	2,674
Operating Income (Loss)	107	72		228	197
Operating Segments [Member] | Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	861	803		1,768	1,644
Operating Income (Loss)	21	28		37	61
Operating Segments [Member] | International [Member]
Segment Reporting Information [Line Items]
Sales	328	331		655	658
Operating Income (Loss)	(30)	(3)		(58)	(5)
Intersegment Elimination [Member]
Segment Reporting Information [Line Items]
Sales	(311)	(269)		(598)	(534)
Intersegment Elimination [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Sales	2	6		4	8
Intersegment Elimination [Member] | Beef [Member]
Segment Reporting Information [Line Items]
Sales	67	54		130	97
Intersegment Elimination [Member] | Pork [Member]
Segment Reporting Information [Line Items]
Sales	242	209		464	429
Other [Member]
Segment Reporting Information [Line Items]
Sales	0	27		0	47
Operating Income (Loss)	$ (6)	$ 22		$ (14)	$ 11

[1] Includes $19 million related to the recognized currency translation adjustment gain