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Other Long-Term Liabilities (Tables) | 3 Months Ended
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Dec. 31, 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 (in millions)
| At December 31, 2024 |  | At September 30, 2024
Interest rate swap liabilities | $ | 589 |  |  | $ | 792 |
Environmental compliance and remediation costs | 210 |  |  | 212 |
Long-term project cost accruals | 160 |  |  | 140 |
Currency swap liabilities | 127 |  |  | 109 |
Operating lease liabilities | 93 |  |  | 88 |
EnergyRight® financing obligation | 52 |  |  | 52 |
Long-term deferred revenue | 49 |  |  | 48 |
Long-term deferred compensation | 37 |  |  | 50 |
Commodity contract derivative liabilities | 32 |  |  | 64 |
Advances for construction | 32 |  |  | 55 |
Other | 98 |  |  | 102 |
Total other long-term liabilities | $ | 1,479 |  |  | $ | 1,712 |

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