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Segment Reporting (Narrative) (Details) $ in Millions	3 Months Ended		6 Months Ended
Segment Reporting (Narrative) (Details) $ in Millions	Apr. 02, 2022 USD ($) Segments	Apr. 03, 2021 USD ($)	Apr. 02, 2022 USD ($)	Apr. 03, 2021 USD ($)	Oct. 02, 2021 USD ($)
Segment Reporting Information [Line Items]
Number of Operating Segments \| Segments	4
Sales	$ 13,117	$ 11,300	$ 26,050	$ 21,760
Loss Contingency Accrual	267		267		$ 567
Operating Income (Loss)	1,156	720	2,611	1,425
Assets Disposed of by Method Other than Sale, in Period of Disposition, Gain (Loss) on Disposition		(19)		(19)
Beef [Member]
Segment Reporting Information [Line Items]
Sales	5,034	4,046	10,036	8,033
Beef [Member] \| Revised Results due to misappropriated Company funds [Member]
Segment Reporting Information [Line Items]
Unusual or Infrequent Item, or Both, Net (Gain) Loss				55
Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,565	1,477	3,191	2,916
Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,086	3,553	7,976	6,384
Unusual or Infrequent Item, or Both, Insurance Proceeds			18
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,393	2,164	4,726	4,277
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	565	487	1,115	956
Operating Segments [Member] \| Beef [Member]
Segment Reporting Information [Line Items]
Sales	5,034	4,046	10,036	8,033
Operating Income (Loss)	638	445	1,594	973
Operating Segments [Member] \| Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,565	1,477	3,191	2,916
Operating Income (Loss)	59	67	223	183
Operating Segments [Member] \| Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,086	3,553	7,976	6,384
Operating Income (Loss)	198	6	338	(210)
Operating Segments [Member] \| Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,393	2,164	4,726	4,277
Operating Income (Loss)	263	217	449	483
Segment Reconciling Items [Member] \| Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	565	487	1,115	956
Operating Income (Loss)	(2)	(15)	7	(4)
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales	$ (526)	$ (427)	$ (994)	(806)
Sales \| Chicken [Member]
Segment Reporting Information [Line Items]
Loss Contingency, Loss in Period				$ 320