Segment Reporting Disaggregation of Revenue (By Segment and Distribution Channel) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 27, 2025	Sep. 28, 2024	Sep. 30, 2023	Oct. 02, 2021
Disaggregation of Revenue [Line Items]
Sales	$ 54,441	$ 53,309	$ 52,881
Revenue from Contract with Customer, Excluding Assessed Tax	(54,441)	(53,309)	(52,881)
Loss Contingency, Loss in Period	40	129
Beef [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(21,623)	(20,479)	(19,325)
Revenues From External Customers	21,105	20,034	18,814
Pork [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(5,781)	(5,903)	(5,768)
Revenues From External Customers	4,381	4,744	4,727
Chicken [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(16,837)	(16,425)	(17,060)
Revenues From External Customers	16,734	16,327	16,980
Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(9,930)	(9,851)	(9,845)
Revenues From External Customers	9,930	9,851	9,845
Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(2,291)	(2,353)	(2,515)
Revenues From External Customers	2,291	2,353	2,515
Intersegment Revenues
Disaggregation of Revenue [Line Items]
Sales		(1,702)	(1,632)
Revenue from Contract with Customer, Excluding Assessed Tax	2,021	1,702	1,632
Sales | Beef [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period	318
Sales | Pork [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period	380	45
Sales | Chicken [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period			156
Sales | Chicken [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period			156
Broiler Antitrust Civil Litigation [Member] | Chicken [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period				$ 545
Broiler Antitrust Civil Litigation [Member] | Sales | Chicken [Member]
Disaggregation of Revenue [Line Items]
Loss Contingency, Loss in Period			156
Retail
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(25,530)	(24,507)	(23,902)
Retail | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	10,920	9,915	8,947
Retail | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	1,880	1,804	1,677
Retail | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	6,942	6,994	7,483
Retail | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	5,788	5,794	5,795
Retail | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0	0	0
Foodservice
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(16,630)	(15,774)	(15,595)
Foodservice | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	5,786	5,215	4,839
Foodservice | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	548	498	477
Foodservice | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	6,660	6,432	6,589
Foodservice | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	3,636	3,629	3,690
Foodservice | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0	0	0
International
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(7,072)	(7,558)	(7,603)
International | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	2,249	2,659	2,633
International | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	1,186	1,364	1,235
International | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	1,104	957	1,007
International | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	242	225	213
International | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	2,291	2,353	2,515
Industrial and Other
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	(5,209)	(5,470)	(5,781)
Industrial and Other | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	2,150	2,245	2,395
Industrial and Other | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	767	1,078	1,338
Industrial and Other | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	2,028	1,944	1,901
Industrial and Other | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	264	203	147
Industrial and Other | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0	0	0
Intersegment Revenues
Disaggregation of Revenue [Line Items]
Revenue from Contract with Customer, Excluding Assessed Tax	0	0	0
Intersegment Revenues | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	518	445	511
Intersegment Revenues | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	1,400	1,159	1,041
Intersegment Revenues | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	103	98	80
Intersegment Revenues | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	0	0	0
Intersegment Revenues | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0	0	0
Intersegment Revenues | Intersegment Revenues
Disaggregation of Revenue [Line Items]
Sales	(2,021)
Operating Segments [Member] | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	21,623	20,479	19,325
Loss Contingency, Loss in Period	0	45
Operating Segments [Member] | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	5,781	5,903	5,768
Loss Contingency, Loss in Period	0	28
Operating Segments [Member] | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	16,837	16,425	17,060
Loss Contingency, Loss in Period	0	56
Operating Segments [Member] | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	9,930	9,851	9,845
Loss Contingency, Loss in Period	0	0
Operating Segments [Member] | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	2,291	2,353	$ 2,515
Loss Contingency, Loss in Period	$ 40	$ 0