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Segment Reporting (Narrative) (Details) $ in Millions	3 Months Ended		9 Months Ended
Segment Reporting (Narrative) (Details) $ in Millions	Jul. 01, 2023 USD ($) Segments	Jul. 02, 2022 USD ($)	Jul. 01, 2023 USD ($)	Jul. 02, 2022 USD ($)	Oct. 01, 2022 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments \| Segments	4
Sales	$ 13,140	$ 13,495	$ 39,533	$ 39,545
Loss Contingency Accrual	256		256		$ 215
Operating Income (Loss)	(350)	1,033	68	3,644
Broiler Antitrust Civil Litigation [Member]
Segment Reporting Information [Line Items]
Loss Contingency Accrual	149		149		$ 122
Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,956	4,959	14,296	14,995
Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,324	1,619	4,274	4,810
Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,212	4,366	12,905	12,342
Chicken [Member] \| Broiler Antitrust Civil Litigation [Member]
Segment Reporting Information [Line Items]
Loss Contingency, Loss in Period	38		38
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,383	2,447	7,343	7,173
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	633	602	1,879	1,717
Operating Segments [Member] \| Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,956	4,959	14,296	14,995
Operating Income (Loss)	66	533	232	2,127
Operating Segments [Member] \| Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,324	1,619	4,274	4,810
Operating Income (Loss)	(74)	25	(128)	248
Operating Segments [Member] \| Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,212	4,366	12,905	12,342
Operating Income (Loss)	(314)	277	(503)	615
Operating Segments [Member] \| Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,383	2,447	7,343	7,173
Operating Income (Loss)	206	186	705	635
Segment Reconciling Items [Member] \| Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	633	602	1,879	1,717
Operating Income (Loss)	(234)	12	(238)	19
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales	(368)	(498)	(1,164)	(1,492)
Cost of Sales \| Beef [Member]
Segment Reporting Information [Line Items]
Unusual or Infrequent Item, or Both, Insurance Proceeds	27		42	27
Cost of Sales \| Chicken [Member]
Segment Reporting Information [Line Items]
Unusual or Infrequent Item, or Both, Net of Insurance Proceeds	22	$ 8	15	$ 26
Sales
Segment Reporting Information [Line Items]
Loss Contingency, Loss in Period	$ 38		$ 38