Segment Reporting (Segment Reporting Information, By Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Jan. 02, 2021	Dec. 28, 2019
Segment Reporting Information [Line Items]
Sales	$ 10,460	$ 10,815
Operating Income (Loss)	705	758
Total other expense	89	101
Income before income taxes	616	657
Revised Results due to misappropriated Company funds [Member]
Segment Reporting Information [Line Items]
Unusual or Infrequent Item, or Both, Net (Gain) Loss	55	(68)
Beef [Member]
Segment Reporting Information [Line Items]
Sales	3,987	3,838
Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,439	1,379
Chicken [Member]
Segment Reporting Information [Line Items]
Sales	2,831	3,292
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,113	2,140
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	469	498
Operating Segments [Member] | Beef [Member]
Segment Reporting Information [Line Items]
Sales	3,987	3,838
Operating Income (Loss)	528	342
Operating Segments [Member] | Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,439	1,379
Operating Income (Loss)	116	191
Operating Segments [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Sales	2,831	3,292
Operating Income (Loss)	(216)	57
Operating Segments [Member] | Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,113	2,140
Operating Income (Loss)	266	158
Segment Reconciling Items [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	469	498
Operating Income (Loss)	11	10
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales	$ (379)	$ (332)