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Other Income (Expense), Net
9 Months Ended
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 30Nine Months Ended June 30
 2023202220232022
Interest income$$$25 $
External services11 11 
Gains (losses) on investments(11)15 (13)
Miscellaneous— 
Other income (expense), net$20 $(6)$57 $11