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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

X

- Definition

Present value of lessee's discounted obligation for lease payments from finance lease.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 6
-URI http://asc.fasb.org/extlink&oid=121609121&loc=SL77918701-209980

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-Publisher FASB
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+ References

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+ References

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-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 45
-Paragraph 1
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+ References

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-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 20
-Section 45
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-Publisher FASB
-Name Accounting Standards Codification
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-Section 50
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