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Other Long-Term Liabilities Other Long-Term Liabilities (Tables) | 12 Months Ended
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Sep. 30, 2015
Other Liabilities, Noncurrent [Abstract] |
Other Long-Term Liabilities | The table below summarizes the types and amounts of Other long-term liabilities:
Other Long-Term Liabilities At September 30
| 2015 |  | 2014
Interest rate swap liabilities | $ | 1,627 |  |  | $ | 1,348 |
EnergyRight® financing obligation | 148 |  |  | 152 |
Environmental agreements liability | 55 |  |  | 108 |
Currency swap liabilities | 47 |  |  | 15 |
Membership interests of VIE subject to mandatory redemption | 35 |  |  | 37 |
Commodity contract derivative liabilities | 17 |  |  | 17 |
Commodity swap derivative liabilities | 10 |  |  | 14 |
Other | 280 |  |  | 271 |
Total other long-term liabilities | $ | 2,219 |  |  | $ | 1,962 |

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