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Other Long-Term Assets (Tables)
12 Months Ended
Sep. 30, 2023
Assets, Noncurrent [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 September 30
(in millions)
 20232022
Loans and other long-term receivables, net$97 $99 
Prepaid long-term service agreements64 74 
EnergyRight® receivables, net
47 49 
Prepaid capital assets28 — 
Commodity contract derivative assets12 102 
Other82 70 
Total other long-term assets$330 $394