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Other Income (Expense), Net (Tables) | 9 Months Ended
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Jun. 30, 2013
Other Income and Expenses [Abstract] |
Other Income (Expense), Net | Income and expenses not related to TVA’s operating activities are summarized in the following table:
Other Income (Expense), Net
| For the Three Months Ended June 30 |  | For the Nine Months Ended June 30
| 2013 |  | 2012 |  | 2013 |  | 2012
External services | $ | 6 |  |  | $ | — |  |  | $ | 17 |  |  | $ | 2 |
Interest income | 5 |  |  | 27 |  |  | 17 |  |  | 14 |
Gains (losses) on investments | — |  |  | (1 | ) |  | 2 |  |  | 3 |
Miscellaneous | (1 | ) |  | (5 | ) |  | — |  |  | (3 | )
Total other income (expense), net | $ | 10 |  |  | $ | 21 |  |  | $ | 36 |  |  | $ | 16 |

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- Definition Tabular disclosure of the components of non-operating income or non-operating expense that may include amounts earned from dividends, interest on securities, gains (losses) on securities sold, equity earnings of unconsolidated affiliates, net gain (loss) on sales of business, interest expense and other miscellaneous income or expense items. + References No definition available. + Details
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