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Property, Plant and Equipment, Net (Notes)
6 Months Ended
Jun. 30, 2014
Property, Plant and Equipment, Net [Abstract]  
Property, Plant and Equipment, Net
Property, Plant and Equipment, Net

Property, plant and equipment, net consists of the following (in millions):
 
As of
 
June 30,
 
December 31,
 
2014
 
2013
Utility plant in-service:
 
 
 
Electric generation
$
1,067

 
$
1,070

Electric distribution
1,308

 
1,289

Electric transmission
714

 
685

Electric intangible plant
124

 
138

Natural gas distribution
360

 
357

Natural gas intangible plant
13

 
13

Common general
233

 
212

Utility plant in-service
3,819

 
3,764

Accumulated depreciation and amortization
(1,324
)
 
(1,301
)
Utility plant in-service, net
2,495

 
2,463

Construction work-in-progress
87

 
89

Property, plant and equipment, net
$
2,582

 
$
2,552