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Property, Plant and Equipment Property, Plant and Equipment (Tables) (NRG Yield)
6 Months Ended
Jun. 30, 2013
NRG Yield
 
Property, Plant and Equipment  
Schedule of Property, Plant and Equipment
 
June 30, 2013
 
December 31, 2012
 
Depreciable Lives
 
(In millions)
 
 
Facilities and equipment
$
1,589

 
$
753

 
5 - 40 Years
Land and improvements
35

 
30

 
 
Construction in progress
2

 
930

 
 
Total property, plant and equipment
1,626

 
1,713

 
 
Accumulated depreciation
(134
)
 
(115
)
 
 
Net property, plant and equipment
$
1,492

 
$
1,598