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Business And Summary Of Significant Accounting Policies (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 28, 2019	Sep. 29, 2018	Sep. 30, 2017
Accounting Policies [Line Items]
Checks outstanding in excess of related book cash	$ 200	$ 220
Allowance for uncollectible accounts	$ 21	19
Maximum length of time hedged anticipated transactions	18 months
Research and development costs	$ 97	114	$ 113
Selling, General and Administrative Expenses [Member]
Accounting Policies [Line Items]
Advertising Expense	$ 276	$ 243	$ 238
Measurement Input, Discount Rate [Member] | Indefinite-lived Intangible Assets [Member]
Accounting Policies [Line Items]
Annual Indefinite Life Intangible Test, Discount Rate	7.50%	8.20%
Minimum [Member] | Customer Relationships [Member]
Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	7 years
Maximum [Member] | Brands & Trademarks
Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	20 years
Maximum [Member] | Customer Relationships [Member]
Accounting Policies [Line Items]
Finite-Lived Intangible Asset, Useful Life	30 years
Buildings And Leasehold Improvements [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	10 years
Buildings And Leasehold Improvements [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	33 years
Machinery And Equipment [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	3 years
Machinery And Equipment [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	12 years
Land Improvements [Member] | Minimum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	3 years
Land Improvements [Member] | Maximum [Member]
Accounting Policies [Line Items]
Property, plant, and equipment estimated lives	20 years

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Checks Outstanding In Excess Of Related Book Cash Balances

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Amount charged to advertising expense for the period, which are expenses incurred with the objective of increasing revenue for a specified brand, product or product line.

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Amount of allowance for credit loss on accounts receivable.

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