Segment Reporting (Segment Reporting Information, By Segment) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Apr. 02, 2022	Apr. 03, 2021	Apr. 02, 2022	Apr. 03, 2021	Oct. 02, 2021
Segment Reporting Information [Line Items]
Sales	$ 13,117	$ 11,300	$ 26,050	$ 21,760
Operating Income (Loss)	1,156	720	2,611	1,425
Total Other (Income) Expense	69	96	114	185
Income before income taxes	1,087	624	2,497	1,240
Assets Disposed of by Method Other than Sale, in Period of Disposition, Gain (Loss) on Disposition		(19)		(19)
Loss Contingency Accrual	267		267		$ 567
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
Unusual or Infrequent Item, or Both, Net of Insurance Proceeds	5
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