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Inventories, Net
9 Months Ended
Jun. 30, 2014
Inventory, Net [Abstract]  
Inventories, Net
Inventories, Net

The table below summarizes the types and amounts of TVA’s inventories:
Inventories, Net 
 
At June 30, 2014
 
At September 30, 2013
Materials and supplies inventory
$
611

 
$
620

Fuel inventory
479

 
494

Emission allowance inventory
13

 
14

Allowance for inventory obsolescence
(40
)
 
(37
)
Inventories, net
$
1,063

 
$
1,091