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Commitments (Narrative) (Details) - USD ($) $ in Millions	12 Months Ended
	Sep. 29, 2018	Sep. 30, 2017	Oct. 01, 2016
Guarantor Obligations [Line Items]
Operating Leases, Rent Expense	$ 200	$ 186	$ 172
Lease, Maximum Initial Term	7 years
Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables	$ 0	0
Guarantor Obligations, Current Carrying Value	0	0
Potential maximum obligation under cash flow assistance program	300
Total receivables under cash flow assistance program	6	$ 0
Industrial Revenue Bonds [Member]
Guarantor Obligations [Line Items]
Fair Value Disclosure, Off-balance Sheet Risks, Face Amount, Asset	$ 636
Guarantee Obligations [Member]
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Period	10 years
Maximum potential amount	$ 16
Lease Residual Value Guarantees [Domain]
Guarantor Obligations [Line Items]
Maximum potential amount	$ 91
Maximum [Member] | Lease Residual Value Guarantees [Domain]
Guarantor Obligations [Line Items]
Lease, Maximum Initial Term	10 years

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- Definition

Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables

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Cash Flow Assistance Program, Potential Maximum Obligation

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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.

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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 rent expense incurred for leased assets, including but not limited to, furniture and equipment, that is not directly or indirectly associated with the manufacture, sale or creation of a product or product line.

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Term of lessee's operating lease, in 'PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents reported fact of one year, five months, and thirteen days.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-Name Accounting Standards Codification
-Topic 842
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-Section 50
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