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Commitments (Narrative) (Details) - USD ($) | 3 Months Ended |
--- | --- | ---
Dec. 30, 2017 | Sep. 30, 2017
Guarantor Obligations [Line Items] |  |
Potential maximum obligation under cash flow assistance programs | $ 370,000,000 |
Total receivables under cash flow assistance programs | 1,000,000 | $ 0
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 | $ 636,000,000 |
Guarantee of Indebtedness of Others [Member] |  |
Guarantor Obligations [Line Items] |  |
Guarantor Obligations, Maximum Exposure, Period (in years) | 15 years |
Maximum potential amount | $ 26,000,000 |
Residual Value Guarantees [Member] |  |
Guarantor Obligations [Line Items] |  |
Maximum potential amount | $ 112,000,000 |
Guarantor Obligations, Maximum Exposure, Remaining Lease Period (in years) | 10 years |
Amount recoverable through various recourse provisions | $ 103,000,000 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 460 -SubTopic 10 -Section 50 -Paragraph 4 -Subparagraph (c) -URI http://asc.fasb.org/extlink&oid=82913245&loc=d3e12069-110248 + Details
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