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Accounting Policies Changes in Accounting Principles (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Jun. 27, 2020 | Sep. 29, 2019
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Operating Lease, Right-of-Use Asset | $ 540 | $ 549
Operating Lease, Liability | 541 | $ 546
Donald J Tyson Revocable Trust, Berry Street Waste Water Treatment Plant, LP, and the sisters of Mr. Tyson [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Related Party Transaction, Amounts of Transaction | 1 |
Donald J Tyson Revocable Trust, Berry Street Waste Water Treatment Plant, LP, and the sisters of Mr. Tyson [Member] |  |
New Accounting Pronouncements or Change in Accounting Principle [Line Items] |  |
Finance Lease, Liability | $ 7 |

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