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Related Party Transactions (Tables)
 9 Months Ended
Sep. 30, 2015
Related Party Transactions [Abstract]  
Related Party Transactions [table text block]
The following table provides a summary of the related party activity included in our consolidated statements of operations:
 
Three Months Ended
September 30,
 
Nine Months Ended
September 30,
 
2015
 
2014
 
2015
 
2014
Operating revenues
$
4

 
$
4

 
$
13

 
$
28

Operating and maintenance
4

 
4

 
12

 
12

General and administrative
8

 
9

 
24

 
25

Interest income — affiliates
6

 
5

 
7

 
17

Income from unconsolidated affiliates
28

 
9

 
26

 
7