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Other Long-Term Liabilities Other Long-Term Liabilities (Tables) | 12 Months Ended
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Sep. 30, 2024
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 (in millions)
| 2024 |  | 2023(1)
Interest rate swap liabilities | $ | 792 |  |  | $ | 627 |
Environmental compliance and remediation costs | 212 |  |  | — |
Long-term project cost accruals | 140 |  |  | 10 |
Currency swap liabilities | 109 |  |  | 131 |
Operating lease liabilities | 88 |  |  | 93 |
Commodity contract derivative liabilities | 64 |  |  | 52 |
Advances for construction | 55 |  |  | 56 |
EnergyRight® financing obligation | 52 |  |  | 55 |
Long-term deferred compensation | 50 |  |  | 41 |
Long-term deferred revenue | 48 |  |  | 45 |
Other | 102 |  |  | 101 |
Total other long-term liabilities | $ | 1,712 |  |  | $ | 1,211 |
Note (1) At September 30, 2023, $10 million previously classified as Other (a component of Other long-term liabilities) has been reclassified to Long-term project cost accruals (a component of Other long-term liabilities) to conform with current year presentation.

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- Definition Tabular disclosure of other noncurrent liabilities. + References No definition available. + Details
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