Segment Reporting (Segment Reporting Information, By Segment) (Details) - USD ($) $ in Millions	3 Months Ended
	Dec. 31, 2022	Jan. 01, 2022	Oct. 01, 2022
Segment Reporting Information [Line Items]
Sales	$ 13,260	$ 12,933
Operating Income (Loss)	467	1,455
Total Other (Income) Expense	33	45
Income before income taxes	434	1,410
Loss Contingency Accrual	194		$ 215
Unusual or Infrequent Item, or Both, Insurance Proceeds		23
Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,723	5,002
Unusual or Infrequent Item, or Both, Insurance Proceeds	42
Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,529	1,626
Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,263	3,890
Unusual or Infrequent Item, or Both, Net of Insurance Proceeds	7
Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,538	2,333
Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	612	550
Operating Segments [Member] | Beef [Member]
Segment Reporting Information [Line Items]
Sales	4,723	5,002
Operating Income (Loss)	166	956
Operating Segments [Member] | Pork [Member]
Segment Reporting Information [Line Items]
Sales	1,529	1,626
Operating Income (Loss)	(21)	164
Operating Segments [Member] | Chicken [Member]
Segment Reporting Information [Line Items]
Sales	4,263	3,890
Operating Income (Loss)	69	140
Operating Segments [Member] | Prepared Foods [Member]
Segment Reporting Information [Line Items]
Sales	2,538	2,333
Operating Income (Loss)	258	186
Segment Reconciling Items [Member] | Corporate and Other [Member]
Segment Reporting Information [Line Items]
Sales	612	550
Operating Income (Loss)	(5)	9
Intersegment Eliminations
Segment Reporting Information [Line Items]
Sales	$ (405)	$ (468)