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Debt (Tables) | 9 Months Ended
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Jun. 30, 2018
Debt Instruments [Abstract] |
Schedule of Major Components Of Debt | The major components of debt are as follows (in millions):
| June 30, 2018 |  | September 30, 2017
Revolving credit facility | $ | 30 |  |  | $ | — |
Commercial paper | 1,000 |  |  | 778 |
Senior notes: |  |  |
7.00% Notes due May 2018 | — |  |  | 120 |
Notes due May 2019 (2.77% at 6/30/2018) | 300 |  |  | 300 |
2.65% Notes due August 2019 | 1,000 |  |  | 1,000 |
Notes due June 2020 (2.87% at 6/30/2018) | 350 |  |  | 350 |
Notes due August 2020 (2.78% at 6/30/2018) | 400 |  |  | 400 |
4.10% Notes due September 2020 | 281 |  |  | 282 |
2.25% Notes due August 2021 | 500 |  |  | 500 |
4.50% Senior notes due June 2022 | 1,000 |  |  | 1,000 |
3.95% Notes due August 2024 | 1,250 |  |  | 1,250 |
3.55% Notes due June 2027 | 1,350 |  |  | 1,350 |
7.00% Notes due January 2028 | 18 |  |  | 18 |
6.13% Notes due November 2032 | 161 |  |  | 162 |
4.88% Notes due August 2034 | 500 |  |  | 500 |
5.15% Notes due August 2044 | 500 |  |  | 500 |
4.55% Notes due June 2047 | 750 |  |  | 750 |
Discount on senior notes | (13 | ) |  | (15 | )
Term loans: |  |  |
Tranche B due August 2019 | — |  |  | 427 |
Tranche B due August 2020 (2.93% at 6/30/2018) | 750 |  |  | 500 |
Other | 76 |  |  | 81 |
Unamortized debt issuance costs | (43 | ) |  | (50 | )
Total debt | 10,160 |  |  | 10,203 |
Less current debt | 1,308 |  |  | 906 |
Total long-term debt | $ | 8,852 |  |  | $ | 9,297 |

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- Definition Tabular disclosure of information pertaining to short-term and long-debt instruments or arrangements, including but not limited to identification of terms, features, collateral requirements and other information necessary to a fair presentation. + References No definition available. + Details
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