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Disaggregation of Revenue (By Segment and Distribution Channel) (Details) - USD ($)
$ in Millions
12 Months Ended
Oct. 02, 2021
Oct. 03, 2020
Sep. 28, 2019
Disaggregation of Revenue [Line Items]      
Sales $ 47,049 $ 43,185 $ 42,405
Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 17,999 15,742 15,828
Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 6,277 5,128 4,932
Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 13,733 13,234 13,300
Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 8,853 8,532 8,418
Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,990 1,856 1,289
Retail Sales Channel [Member]      
Disaggregation of Revenue [Line Items]      
Sales 21,909 20,817 19,265
Retail Sales Channel [Member] | Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 8,779 8,155 7,420
Retail Sales Channel [Member] | Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,787 1,590 1,415
Retail Sales Channel [Member] | Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 6,112 5,935 5,637
Retail Sales Channel [Member] | Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 5,231 5,137 4,793
Retail Sales Channel [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
Foodservice Sales Channel [Member]      
Disaggregation of Revenue [Line Items]      
Sales 13,677 12,054 12,959
Foodservice Sales Channel [Member] | Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 4,326 3,669 4,151
Foodservice Sales Channel [Member] | Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 474 403 400
Foodservice Sales Channel [Member] | Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 5,566 4,892 5,138
Foodservice Sales Channel [Member] | Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 3,311 3,090 3,270
Foodservice Sales Channel [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
International Sales Channel [Member]      
Disaggregation of Revenue [Line Items]      
Sales 6,793 5,833 5,399
International Sales Channel [Member] | Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 2,720 2,183 2,426
International Sales Channel [Member] | Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,173 1,026 890
International Sales Channel [Member] | Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 770 642 690
International Sales Channel [Member] | Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 140 126 104
International Sales Channel [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,990 1,856 1,289
Industrial and Other Sales Channel [Member]      
Disaggregation of Revenue [Line Items]      
Sales 4,670 4,481 4,782
Industrial and Other Sales Channel [Member] | Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,719 1,345 1,420
Industrial and Other Sales Channel [Member] | Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,563 1,244 1,334
Industrial and Other Sales Channel [Member] | Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,217 1,713 1,777
Industrial and Other Sales Channel [Member] | Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 171 179 251
Industrial and Other Sales Channel [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
Intersegment Eliminations [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
Intersegment Eliminations [Member] | Beef [Member]      
Disaggregation of Revenue [Line Items]      
Sales 455 390 411
Intersegment Eliminations [Member] | Pork [Member]      
Disaggregation of Revenue [Line Items]      
Sales 1,280 865 893
Intersegment Eliminations [Member] | Chicken [Member]      
Disaggregation of Revenue [Line Items]      
Sales 68 52 58
Intersegment Eliminations [Member] | Prepared Foods [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
Intersegment Eliminations [Member] | Other [Member]      
Disaggregation of Revenue [Line Items]      
Sales 0 0 0
Intersegment Eliminations [Member]      
Disaggregation of Revenue [Line Items]      
Sales $ (1,803) $ (1,307) $ (1,362)