Goodwill And Intangible Assets (Narrative) (Details) - USD ($)	12 Months Ended
Oct. 02, 2021	Oct. 03, 2020	Sep. 28, 2019
Goodwill [Line Items]
Amortization expense on intangible assets	$ 261,000,000	$ 278,000,000	$ 267,000,000
Goodwill	$ 11,166,000,000	11,516,000,000	11,461,000,000
Reporting Unit, Percentage of Fair Value in Excess of Carrying Amount	20.00%
Amortization expense on intangible assets	$ 261,000,000	$ 278,000,000	$ 267,000,000
Estimated amortization expense on intangible assets, 2019	247,000,000
Estimated amortization expense on intangible assets, 2020	228,000,000
Estimated amortization expense on intangible assets, 2021	223,000,000
Estimated amortization expense on intangible assets, 2022	214,000,000
Estimated amortization expense on intangible assets, 2023	207,000,000
Domestic Chicken [Member]
Goodwill [Line Items]
Goodwill	$ 3,300,000,000

The aggregate expense charged against earnings to allocate the cost of intangible assets (nonphysical assets not used in production) in a systematic and rational manner to the periods expected to benefit from such assets. As a noncash expense, this element is added back to net income when calculating cash provided by or used in operations using the indirect method.

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Amount of amortization for assets, excluding financial assets and goodwill, lacking physical substance with finite life expected to be recognized in fifth fiscal year following current fiscal year. Excludes interim and annual periods when interim periods are reported from current statement of financial position date (rolling approach).

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Amount before accumulated impairment loss of an asset representing future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognized.

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Percentage of fair value of reporting unit in excess of carrying amount.

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