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Other Long-Term Assets (Tables)
 3 Months Ended
Dec. 31, 2017
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 December 31, 2017
 
At September 30, 2017
Loans and other long-term receivables, net
$
124

 
$
115

EnergyRight® receivables
98

 
100

Prepaid capacity payments
32

 
34

Commodity contract derivative assets
6

 
2

Currency swap asset, net
5

 
—

Other
65

 
72

Other long-term assets
$
330

 
$
323