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Variable Interest Entities and Unconsolidated Investments (Tables)
 12 Months Ended
Dec. 31, 2018
Variable Interest Entities and Unconsolidated Investments [Abstract]  
Schedule of Equity Method Investments
At December 31, 2018 and 2017, our equity method investments included on our Consolidated Balance Sheets were comprised of the following (in millions):
 
 
Ownership Interest as of December 31, 2018
 
2018
 
2017
Greenfield LP
50%
 
$
55

 
$
92

Whitby
50%
 
15

 
6

Calpine Receivables
100%
 
6

 
8

Total investments in unconsolidated subsidiaries
 
 
$
76

 
$
106
Income (Loss) From Unconsolidated Investments in Power Plants and Distributions
The following table sets forth details of our (income) loss from unconsolidated subsidiaries and distributions for the years indicated (in millions):
 
(Income) loss from 
Unconsolidated Subsidiaries
 
Distributions
 
2018
 
2017
 
2016
 
2018
 
2017
 
2016
Greenfield LP
$
(11
)
 
$
(14
)
 
$
(10
)
 
$
48

 
$
8

 
$
8

Whitby
(15
)
 
(10
)
 
(14
)
 
5

 
20

 
13

Calpine Receivables
2

 
2

 
—

 
—

 
—

 
—

Total
$
(24
)
 
$
(22
)
 
$
(24
)
 
$
53

 
$
28

 
$
21