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v3.23.1

Other Long-Term Assets (Details) - USD ($) $ in Millions | 6 Months Ended |
--- | --- | ---
Mar. 31, 2023 | Sep. 30, 2022
Other Long-Term Assets |  |
EnergyRight® receivables, net | $ 61 | $ 62
Prepaid Expense, Noncurrent | 72 | 74
Total other long-term assets | 335 | 394
Prepaid Expense, Current | 25 | 12
Loans and Leases Receivable, Allowance | 3 | 3
Financing Receivable, after Allowance for Credit Loss, Current | 4 | 6
EnergyRight loan 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
Economic Development Loan Collective Reserve |  |
Other Long-Term Assets |  |
Loans and Leases Receivable, Allowance | 1 | 1
Accounts Receivable [Member] |  |
Other Long-Term Assets |  |
EnergyRight® receivables, net | 13 | 13
Other long-term assets |  |
Other Long-Term Assets |  |
Loans and other long-term receivables, net | 115 | 99
EnergyRight® receivables, net | 48 | 49
Other | 94 | 70
Other long-term assets |  |
Other Long-Term Assets |  |
Commodity Contract Asset, Noncurrent | $ 6 | $ 102
Energy Right |  |
Other Long-Term Assets |  |
Number of days in default | 180 days |
Energy Right | Minimum |  |
Other Long-Term Assets |  |
Debt Instrument, Term | 5 years |
Energy Right | Maximum |  |
Other Long-Term Assets |  |
Debt Instrument, Term | 10 years |

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