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Other Income (Expense), Net
12 Months Ended
Sep. 30, 2018
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
For the years ended September 30
 
2018
 
2017
 
2016
Interest income
$
23

 
$
23

 
$
24

External services
14

 
14

 
12

Gains (losses) on investments
6

 
9

 
7

Miscellaneous
7

 
10

 

Total other income (expense), net
$
50

 
$
56

 
$
43