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Note 7. Leases (Tables) | 12 Months Ended
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Sep. 30, 2017
Operating Leased Assets [Line Items] |
Schedule of Future Minimum Rental Payments for Operating Leases [Table Text Block] | Future minimum capital and operating lease payments and the related present value of capital lease payments at September 30, 2017 are as follows:
(in millions) |  | Capital Leases |  | Operating Leases
2018 |  | $ | 3 |  |  | $ | 114 |
2019 |  | 2 |  |  | 81 |
2020 |  | — |  |  | 62 |
2021 |  | — |  |  | 50 |
2022 |  | — |  |  | 36 |
After 2022 |  | — |  |  | 52 |
Total minimum lease payments |  | 5 |  |  | $ | 395 |
Interest |  | (1 | ) |  |
Present value of net minimum lease payments |  | $ | 4 |  |  |

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- Definition Tabular disclosure of future minimum payments required in the aggregate and for each of the five succeeding fiscal years for operating leases having initial or remaining noncancelable lease terms in excess of one year and the total minimum rentals to be received in the future under noncancelable subleases as of the balance sheet date. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 840 -SubTopic 20 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=6453985&loc=d3e41502-112717 + Details
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