Segment Reporting Disaggregation of Revenue (By Segment and Distribution Channel) (Details) - USD ($) $ in Millions	3 Months Ended				9 Months Ended
	Jul. 03, 2021		Jun. 27, 2020		Jul. 03, 2021	Jun. 27, 2020
Disaggregation of Revenue [Line Items]
Sales	$ 12,478		$ 10,022		$ 34,238	$ 31,725
Loss Contingency, Loss in Period	306				626
Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	4,954		3,653		12,987	11,470
Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	1,715		1,115		4,631	3,760
Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	3,476		3,112		9,860	9,801
Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	2,323		2,035		6,600	6,255
Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	488		402		1,444	1,365
Retail
Disaggregation of Revenue [Line Items]
Sales	5,724	[1]	5,403	[1]	16,357	15,325
Retail | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	2,365		2,192		6,535	5,956
Retail | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	500		408		1,342	1,191
Retail | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	1,500		1,481		4,512	4,420
Retail | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	1,359		1,322		3,968	3,758
Retail | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
Foodservice
Disaggregation of Revenue [Line Items]
Sales	3,774	[2]	2,432	[2]	9,801	8,867
Foodservice | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	1,264		650		3,030	2,699
Foodservice | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	141		85		334	301
Foodservice | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	1,492		1,046		4,033	3,592
Foodservice | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	877		651		2,404	2,275
Foodservice | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
International
Disaggregation of Revenue [Line Items]
Sales	1,750	[3]	1,235	[3]	4,885	4,270
International | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	704		444		1,915	1,563
International | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	324		214		913	768
International | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	197		151		515	479
International | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	37		24		98	95
International | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	488		402		1,444	1,365
Industrial and Other
Disaggregation of Revenue [Line Items]
Sales	1,230	[4]	952	[4]	3,195	3,263
Industrial and Other | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	491		279		1,182	967
Industrial and Other | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	419		215		1,122	900
Industrial and Other | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	270		420		761	1,269
Industrial and Other | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	50		38		130	127
Industrial and Other | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
Intersegment Eliminations | Beef [Member]
Disaggregation of Revenue [Line Items]
Sales	130		88		325	285
Intersegment Eliminations | Pork [Member]
Disaggregation of Revenue [Line Items]
Sales	331		193		920	600
Intersegment Eliminations | Chicken [Member]
Disaggregation of Revenue [Line Items]
Sales	17		14		39	41
Intersegment Eliminations | Prepared Foods [Member]
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
Intersegment Eliminations | Corporate and Other [Member]
Disaggregation of Revenue [Line Items]
Sales	0		0		0	0
Intersegment Eliminations
Disaggregation of Revenue [Line Items]
Sales	$ (478)		$ (295)		$ (1,284)	$ (926)

[1] (a) Includes sales to consumer products and food retailers, such as grocery retailers, warehouse club stores and internet-based retailers

[2] (b) Includes sales to foodservice distributors, restaurant operators, hotel chains and noncommercial foodservice establishments such as schools, convenience stores, healthcare facilities and the military.

[3] (c) Includes sales to international markets for internationally produced products or export sales of domestically produced products.

[4] (d) Includes sales to industrial food processing companies that further process our product to sell to end consumers and any remaining sales not included in the Retail, Foodservice or International categories. For the three and nine months ended July 3, 2021, the Chicken segment included a $225 million and $545 million reduction in Other, respectively, due to the recognition of legal contingency accruals.