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Other Long-Term Assets [Text Block] | 12 Months Ended
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Sep. 30, 2025
Assets, Noncurrent [Abstract] |
Other Long-Term Assets | . Other Long-Term Assets The table below summarizes the types and amounts of TVA's other long-term assets:
Other Long-Term Assets At September 30 (in millions) |  |
| 2025 |  | 2024 |  |
Cloud assets | $ | 114 |  |  | $ | 35 |  |  |
Prepaid long-term service agreements | 89 |  |  | 62 |  |  |
Loans and other long-term receivables, net | 83 |  |  | 84 |  |  |
Prepaid capital assets | 81 |  |  | 29 |  |  |
EnergyRight® receivables, net | 45 |  |  | 44 |  |  |
Commodity contract derivative assets | 10 |  |  | 2 |  |  |
Other | 84 |  |  | 88 |  |  |
Total other long-term assets | $ | 506 |  |  | $ | 344 |  |  |
Cloud Assets. TVA has capitalized the implementation costs of hosting arrangements that are considered service contracts as cloud assets. The cloud assets are amortized over the non-cancellable terms of the hosting arrangement, including renewal periods that are reasonably certain to be exercised. The current and long-term portions of the cloud assets are reported in Other current assets and Other long-term assets, respectively, on TVA’s Consolidated Balance Sheets. Amortization of the cloud asset is recognized in Operating and maintenance expense, consistent with the classification of the related hosting fees. At September 30, 2025, and September 30, 2024, the carrying amount of the cloud assets reported in Other current assets was $3 million and $13 million, respectively. For the years ended September 30, 2025, 2024, and 2023, TVA amortized $14 million, $15 million, and $7 million, respectively, as Operating and maintenance expense. Prepaid Long-Term Service Agreements. TVA has entered into various long-term service agreements for major maintenance activities at certain of its combined cycle plants. TVA uses the direct expense method of accounting for these arrangements. TVA accrues for parts when it takes ownership and for contractor services when they are rendered. Under certain of these agreements, payments made exceed the value of parts received and services rendered. The current and long-term portions of the resulting prepayments are reported in Other current assets and Other long-term assets, respectively, on TVA's Consolidated Balance Sheets. At September 30, 2025 and 2024, prepayments of $16 million and $7 million, respectively, were recorded in Other current assets. Loans and Other Long-Term Receivables. TVA's loans and other long-term receivables primarily consist of economic development loans for qualifying organizations and a receivable for reimbursements to recover the cost of providing long-term, on-site storage for spent nuclear fuel. The current and long-term portions of the loans receivable are reported in Accounts receivable, net and Other long-term assets, respectively, on TVA's Consolidated Balance Sheets. At September 30, 2025 and 2024, the carrying amount of the loans receivable, net of discount, reported in Accounts receivable, net was $3 million and $21 million, respectively. Loans receivables are reported net of allowances for uncollectible accounts. See Note 1 — Summary of Significant Accounting Policies — Allowance for Uncollectible Accounts.. The allowance components, which consist of a collective allowance and specific loans allowance, are based on the risk characteristics of TVA's loans. Loans that share similar risk characteristics are evaluated on a collective basis in measuring credit losses, while loans that do not share similar risk characteristics with other loans are evaluated on an individual basis.
Allowance Components At September 30 (in millions)
| 2025 |  | 2024
EnergyRight® loan reserve | $ | 1 |  |  | $ | 1 |
Economic development loan specific loan reserve | 1 |  |  | 1 |
Total allowance for loan losses | $ | 2 |  |  | $ | 2 |
Prepaid Capital Assets. TVA makes prepayments to acquire capital assets. TVA classifies these prepayments as prepaid capital if the funds are refundable, and TVA can receive a credit. EnergyRight® Receivables. In association with the EnergyRight® program, TVA's LPCs offer financing to end-use customers for the purchase of energy-efficient equipment. Depending on the nature of the energy-efficiency project, loans may have a maximum term of five years or 10 years. TVA purchases the resulting loans receivable from its LPCs. The loans receivable are then transferred to a third-party bank with which TVA has agreed to repay in full any loans receivable that have been in default for 180 days or more or that TVA has determined are uncollectible. Given this continuing involvement, TVA accounts for the transfer of the loans receivable as secured borrowings. The current and long-term portions of the loans receivable are reported in Accounts receivable, net and Other long-term assets, respectively, on TVA's Consolidated Balance Sheets. At both September 30, 2025 and 2024, the carrying amount of the loans receivable, net of discount, reported in Accounts receivable, net was $12 million. See Note 13 — Other Long-Term Liabilities for information regarding the associated financing obligation. Commodity Contract Derivative Assets. TVA enters into certain derivative contracts for natural gas that require physical delivery of the contracted quantity of the commodity as well as certain financial derivative contracts to hedge exposure to the price of natural gas. See Note 16 — Risk Management Activities and Derivative Transactions — Derivatives Not Receiving Hedge Accounting Treatment — Commodity Contract Derivatives and — Commodity Derivatives under the FHP for a discussion of TVA's commodity contract derivatives.

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