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Other Income (Expense), Net (Tables)
9 Months Ended
Jun. 30, 2024
Other Income and Expenses [Abstract]  
Other Income (Expense), Net
16.  Other Income, Net

Income and expenses not related to TVA's operating activities are summarized in the following table:
Other Income, Net
(in millions)
 Three Months Ended June 30Nine Months Ended June 30
 2024202320242023
Interest income$10 $$30 $25 
External services12 11 
Gains on investments16 15 
Miscellaneous(2)(3)
Total other income, net$14 $20 $55 $57