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Transactions With Affiliated Companies (Tables)
 12 Months Ended
Dec. 31, 2016
Transactions With Affiliated Companies [Abstract]  
Affiliated Company Transactions
The primary affiliated company transactions for FES during the three years ended December 31, 2016 are as follows:
FES
 
2016
 
2015
 
2014
 
 
 
(In millions)
Revenues:
 
 
 
 
 
 
 
Electric sales to affiliates
 
$
457

 
$
664

 
$
861

 
Other
 
11

 
14

 
15

 
Expenses:
 


 


 


 
Purchased power from affiliates
 
622

 
353

 
271

 
Fuel
 
4

 
1

 
1

 
Support services
 
748

 
705

 
619

 
Investment Income:
 


 


 


 
Interest income from FE
 
2

 
2

 
3

 
Interest Expense:
 


 


 


 
Interest expense to affiliates
 
5

 
4

 
3

 
Interest expense to FE
 
2

 
3

 
4