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Other Long-Term Assets (Tables)
9 Months Ended
Jun. 30, 2018
Deferred Costs, Capitalized, Prepaid, and Other Assets Disclosure [Abstract]  
Other Long-Term Assets
The table below summarizes the types and amounts of TVA's other long-term assets:
Other Long-Term Assets 
 
At June 30, 2018
 
At September 30, 2017
Loans and other long-term receivables, net
$
121

 
$
115

EnergyRight® receivables
93

 
100

Prepaid capacity payments
29

 
34

Commodity contract derivative assets
6

 
2

Other
68

 
72

Other long-term assets
$
317

 
$
323