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Commitments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Oct. 03, 2020	Sep. 28, 2019	Sep. 29, 2018
Guarantor Obligations [Line Items]
Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables	$ 0	$ 0
Restricted Cash	46	0	$ 0
Guarantor Obligations, Current Carrying Value	0	0
Potential maximum obligation under cash flow assistance program	320
Total receivables under cash flow assistance program	29	$ 5
Industrial Revenue Bonds [Member]
Guarantor Obligations [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Asset	$ 573
Guarantee Obligations [Member]
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Period	10 years
Maximum potential amount	$ 13

X

- Definition

Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables

+ References

No definition available.

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- Definition

Cash Flow Assistance Program, Potential Maximum Obligation

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- Definition

Cash Flow Assistance Program, Receivables

+ References

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- Definition

Guarantor Obligations, Maximum Exposure, Period

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- Definition

The face amount of financial assets, which are not recognized in the financial statements (off-balance sheet) because they fail to meet some other criterion for recognition.

+ References

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- Definition

The current carrying amount of the liability for the freestanding or embedded guarantor's obligations under the guarantee or each group of similar guarantees.

+ References

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
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Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

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- Definition

Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions.

+ References

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Amount of cash restricted as to withdrawal or usage. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Publisher FASB
-Name Accounting Standards Codification
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-SubTopic 10
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-Publisher FASB
-Name Accounting Standards Codification
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