Segment Reporting (Segment Reporting Information, By Segment) (Details) - USD ($) $ in Millions	3 Months Ended	6 Months Ended
Apr. 03, 2021	Mar. 28, 2020	Apr. 03, 2021	Mar. 28, 2020
Segment Reporting Information [Line Items]
Sales	$ 11,300	$ 10,888	$ 21,760	$ 21,703
Operating Income (Loss)	720	515	1,425	1,273
Total other expense	96	10	185	111
Income before income taxes	624	505	1,240	1,162
Assets Disposed of by Method Other than Sale, in Period of Disposition, Gain (Loss) on Disposition	19		19
Revision of Prior Period, Adjustment [Member]
Segment Reporting Information [Line Items]
Operating Income (Loss)		14		(54)
Income before income taxes		14		(54)
Revised Results due to misappropriated Company funds [Member]
Segment Reporting Information [Line Items]
Unusual or Infrequent Item, or Both, Net (Gain) Loss		14	55	(54)
Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,046	3,979	8,033	7,817
Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,477	1,266	2,916	2,645
Chicken [Member]
Segment Reporting Information [Line Items]
Sales	3,553	3,397	6,384	6,689
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,164	2,080	4,277	4,220
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	487	465	956	963
Operating Segments [Member] \| Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,046	3,979	8,033	7,817
Operating Income (Loss)	445	123	973	465
Operating Segments [Member] \| Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,477	1,266	2,916	2,645
Operating Income (Loss)	67	93	183	284
Operating Segments [Member] \| Chicken [Member]
Segment Reporting Information [Line Items]
Sales	3,553	3,397	6,384	6,689
Operating Income (Loss)	6	99	(210)	156
Operating Segments [Member] \| Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,164	2,080	4,277	4,220
Operating Income (Loss)	217	191	483	349
Segment Reconciling Items [Member] \| Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	487	465	956	963
Operating Income (Loss)	(15)	9	(4)	19
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales	$ (427)	$ (299)	$ (806)	$ (631)

Amount of gain (loss) from the disposal of an asset through means other than sale, for example, but not limited to, abandonment, spin-off, and expropriation.

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