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Segment Reporting (Narrative) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Oct. 03, 2020 | Jun. 27, 2020 | Mar. 28, 2020 | Dec. 28, 2019 | Sep. 28, 2019 | Jun. 29, 2019 | Mar. 30, 2019 | Dec. 29, 2018 | Oct. 03, 2020 | Sep. 28, 2019 | Sep. 29, 2018 | Nov. 30, 2018
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Number of segments |  |  |  |  |  |  |  |  | 4 |  |  |
Goodwill | $ 10,899 |  |  |  | $ 10,844 |  |  |  | $ 10,899 | $ 10,844 | $ 9,739 |
Sales | 11,460 | $ 10,022 | $ 10,888 | $ 10,815 | 10,884 | $ 10,885 | $ 10,443 | $ 10,193 | 43,185 | 42,405 | 40,052 |
UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 25,600 |  |  |  | 24,800 |  |  |  | 25,600 | 24,800 |  |
UNITED STATES | Long-Lived Assets Excluding Goodwill and Intangibles [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 8,500 |  |  |  | 7,500 |  |  |  | 8,500 | 7,500 |  |
Non-US [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 1,287 |  |  |  | 1,107 |  |  |  | 1,287 | 1,107 |  |
Non-US [Member] | Long-Lived Assets Excluding Goodwill and Intangibles [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Long-lived assets | 648 |  |  |  | 506 |  |  |  | 648 | 506 |  |
Export sales [Member] | UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | $ 4,000 | $ 4,100 | $ 4,200 |
Revenue Benchmark [Member] | Geographic Concentration Risk [Member] | UNITED STATES |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Concentration, Percentage |  |  |  |  |  |  |  |  | 95.00% | 96.00% | 99.00% |
Revenue Benchmark [Member] | Geographic Concentration Risk [Member] | Non-US [Member] | Maximum [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Concentration, Percentage |  |  |  |  |  |  |  |  | 10.00% | 10.00% | 10.00% |
Wal-Mart Stores, Inc. [Member] | Revenue Benchmark [Member] | Customer Concentration Risk [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Concentration, Percentage |  |  |  |  |  |  |  |  | 18.70% | 16.90% | 17.30% |
Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 392 |  |  |  | 337 |  |  |  | $ 392 | $ 337 | $ 0 |
Sales |  |  |  |  |  |  |  |  | 1,856 | 1,289 |  |
Beef [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 676 |  |  |  | 676 |  |  |  | 676 | 676 | 676 |
Sales |  |  |  |  |  |  |  |  | 15,742 | 15,828 |  |
Pork [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 423 |  |  |  | 423 |  |  |  | 423 | 423 | 423 |
Sales |  |  |  |  |  |  |  |  | 5,128 | 4,932 |  |
Chicken [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 3,274 |  |  |  | 3,274 |  |  |  | 3,274 | 3,274 | 2,498 |
Sales |  |  |  |  |  |  |  |  | 13,234 | 13,300 |  |
Prepared Foods [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | 6,134 |  |  |  | $ 6,134 |  |  |  | 6,134 | 6,134 | 6,142 |
Sales |  |  |  |  |  |  |  |  | 8,532 | 8,418 |  |
Segment Reconciling Items [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  |  |  | 5 | 36 | 26 |
Sales |  |  |  |  |  |  |  |  | 1,856 | 1,289 | 305 |
Operating Segments [Member] | Beef [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 15,742 | 15,828 | 15,473 |
Operating Segments [Member] | Pork [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 5,128 | 4,932 | 4,879 |
Operating Segments [Member] | Chicken [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 13,234 | 13,300 | 12,044 |
Operating Segments [Member] | Prepared Foods [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | 8,532 | 8,418 | 8,668 |
Intersegment Eliminations [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | (1,307) | (1,362) | (1,317) |
Intersegment Eliminations [Member] | Beef [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | (390) | (411) | (420) |
Intersegment Eliminations [Member] | Pork [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | (865) | (893) | (817) |
Intersegment Eliminations [Member] | Chicken [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Sales |  |  |  |  |  |  |  |  | (52) | $ (58) | $ (80) |
Keystone Foods and Thai & European Operations [Domain] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill | $ 342 |  |  |  |  |  |  |  | $ 342 |  |  |
Keystone Foods [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Business Combination, Acquisition Related Costs |  |  |  |  |  |  | $ 11 | $ 15 |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | $ 1,120
Keystone Foods [Member] | Other [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | 341
Keystone Foods [Member] | Chicken [Member] |  |  |  |  |  |  |  |  |  |  |  |
Segment Reporting Information [Line Items] |  |  |  |  |  |  |  |  |  |  |  |
Goodwill |  |  |  |  |  |  |  |  |  |  |  | $ 779

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- Definition Number of operating segments. An operating segment is a component of an enterprise: (a) that engages in business activities from which it may earn revenues and incur expenses (including revenues and expenses relating to transactions with other components of the same enterprise), (b) whose operating results are regularly reviewed by the enterprise's chief operating decision maker to make decisions about resources to be allocated to the segment and assess its performance, and (c) for which discrete financial information is available. An operating segment may engage in business activities for which it has yet to earn revenues, for example, start-up operations may be operating segments before earning revenues. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 280 -SubTopic 10 -Section 50 -Paragraph 18 -URI http://asc.fasb.org/extlink&oid=120311839&loc=d3e8672-108599 + Details
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