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v3.25.1

Other Long-Term Liabilities (Tables) | 6 Months Ended
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Mar. 31, 2025
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 March 31, 2025 |  | At September 30, 2024
Interest rate swap liabilities | $ | 657 |  |  | $ | 792 |
Environmental compliance and remediation costs | 247 |  |  | 212 |
Long-term project cost accruals | 181 |  |  | 140 |
Currency swap liabilities | 131 |  |  | 109 |
Operating lease liabilities | 80 |  |  | 88 |
EnergyRight® financing obligation | 52 |  |  | 52 |
Long-term deferred compensation | 41 |  |  | 50 |
Long-term deferred revenue | 38 |  |  | 48 |
Advances for construction | 22 |  |  | 55 |
Commodity contract derivative liabilities | 13 |  |  | 64 |
Other | 89 |  |  | 102 |
Total other long-term liabilities | $ | 1,551 |  |  | $ | 1,712 |

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