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v3.23.3

Other Long-Term Assets (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022
Assets, Noncurrent [Abstract] |  |
Financing Receivable, after Allowance for Credit Loss, Noncurrent | $ 97 | $ 99
Financing Receivable, after Allowance for Credit Loss, Current | 7 | 6
Commodity contract derivative assets | 12 | 102
Prepaid long-term service agreements, noncurrent | 64 | 74
Prepaid capital assets | 28 | 0
Other Assets, Miscellaneous, Noncurrent | 82 | 70
Restricted Cash and Investments, Noncurrent | 20 | 20
Total other long-term assets | 330 | 394
Other Long-Term Assets |  |
Loans and Leases Receivable, Allowance | 3 | 3
Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount | 55 | 62
Other Assets, Miscellaneous, Current | 26 | 25
Accounts Receivable [Member] |  |
Other Long-Term Assets |  |
Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount | 12 | 13
Other Noncurrent Assets [Member] |  |
Other Long-Term Assets |  |
Transfers Accounted for as Secured Borrowings, Assets, Carrying Amount | 47 | 49
EnergyRight loan reserve |  |
Other Long-Term Assets |  |
Loans and Leases Receivable, Allowance | 1 | 1
Economic development loan collective reserve |  |
Other Long-Term Assets |  |
Loans and Leases Receivable, Allowance | 1 | 1
Economic development loan specific loan reserve |  |
Other Long-Term Assets |  |
Loans and Leases Receivable, Allowance | $ 1 | $ 1
Energy Right |  |
Other Long-Term Assets |  |
Number of days in default | 180 days |
Minimum | Energy Right |  |
Other Long-Term Assets |  |
EnergyRight loan terms | 5 years |
Maximum | Energy Right |  |
Other Long-Term Assets |  |
EnergyRight loan terms | 10 years |

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