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Revenue (Tables)
3 Months Ended
Dec. 31, 2019
Revenue from Contract with Customer [Abstract]  
State [Table Text Block]
TVA's revenues by state for the three months ended December 31, 2019 and 2018 are detailed in the table below:
Operating Revenues By State
Three Months Ended December 31
(in millions)
 
2019
 
2018
Alabama
$
369

 
$
392

Georgia
63

 
67

Kentucky
157

 
168

Mississippi
237

 
251

North Carolina
18

 
20

Tennessee
1,676

 
1,771

Virginia
11

 
12

Subtotal
2,531

 
2,681

Off-system sales
1

 

Revenue from sales of electricity
2,532

 
2,681

Other revenue
46

 
44

Total operating revenues
$
2,578

 
$
2,725