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Other Income (Expense), Net | 9 Months Ended
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Jun. 30, 2023
Other Income and Expenses [Abstract] |
Other Income (Expense), Net | Other Income (Expense), Net Income and expenses not related to TVA's operating activities are summarized in the following table:
Other Income (Expense), Net (in millions)
| Three Months Ended June 30 |  | Nine Months Ended June 30
| 2023 |  | 2022 |  | 2023 |  | 2022
Interest income | $ | 9 |  |  | $ | 2 |  |  | $ | 25 |  |  | $ | 9 |
External services | 5 |  |  | 3 |  |  | 11 |  |  | 11 |
Gains (losses) on investments | 5 |  |  | (11) |  |  | 15 |  |  | (13) |
Miscellaneous | 1 |  |  | — |  |  | 6 |  |  | 4 |
Other income (expense), net | $ | 20 |  |  | $ | (6) |  |  | $ | 57 |  |  | $ | 11 |

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- Definition The entire disclosure for other income or other expense items (both operating and nonoperating). Sources of nonoperating income or nonoperating expense that may be disclosed, include amounts earned from dividends, interest on securities, profits (losses) on securities, net and miscellaneous other income or income deductions. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 610 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//610/tableOfContent Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 720 -Name Accounting Standards Codification -Publisher FASB -URI https://asc.fasb.org//720/tableOfContent + Details
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