Commitments (Narrative) (Details) - USD ($) $ in Millions	3 Months Ended
Dec. 29, 2018	Sep. 29, 2018
Guarantor Obligations [Line Items]
Potential maximum obligation under cash flow assistance programs	$ 300
Total receivables under cash flow assistance programs	10	$ 6
Uncollectible receivables estimated under cash flow assistance programs	0	0
Guarantor Obligations, Current Carrying Value	0	$ 0
Industrial Revenue Bonds [Member]
Guarantor Obligations [Line Items]
Industrial Revenue Bonds	698
Lease Residual Value Guarantees [Domain]
Guarantor Obligations [Line Items]
Maximum potential amount	$ 97
Guarantee Obligations [Member]
Guarantor Obligations [Line Items]
Guarantor Obligations, Maximum Exposure, Period	10 years
Maximum potential amount	$ 15
Maximum [Member] \| Guarantee of Indebtedness of Others [Member]
Guarantor Obligations [Line Items]
Lessee, Operating Lease, Term of Contract	10 years

Cash Flow Assistance Program, Estimated Allowance For Uncollectible Receivables

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- Definition

Cash Flow Assistance Program, Potential Maximum Obligation

+ References

No definition available.

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- Definition

Cash Flow Assistance Program, Receivables

+ References

No definition available.

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- Definition

Guarantor Obligations, Maximum Exposure, Period

+ References

No definition available.

+ Details

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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

No definition available.

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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
-Subparagraph (c)
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248

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- Definition

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.

+ References

No definition available.

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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

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 460
-SubTopic 10
-Section 50
-Paragraph 4
-Subparagraph (b)(1)
-URI http://asc.fasb.org/extlink&oid=115931803&loc=d3e12069-110248

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- Definition

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
-Publisher FASB
-Name Accounting Standards Codification
-Topic 842
-SubTopic 20
-Section 50
-Paragraph 3
-Subparagraph (a)(3)
-URI http://asc.fasb.org/extlink&oid=77888426&loc=SL77918673-209980

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