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Property, Plant and Equipment (Tables)
12 Months Ended
Dec. 31, 2016
Property, Plant and Equipment [Abstract]  
Schedule of Property, Plant, and Equipment
SCE's property, plant and equipment included in the consolidated balance sheets is composed of the following:
 
December 31,
(in millions)
2016
 
2015
Distribution
$
22,332

 
$
20,871

Transmission
12,549

 
11,592

Generation
3,376

 
3,138

General plant and other
4,633

 
4,543

Accumulated depreciation
(9,000
)
 
(8,548
)
 
33,890

 
31,596

Construction work in progress
2,790

 
3,218

Nuclear fuel, at amortized cost
126

 
131

Total utility property, plant and equipment
$
36,806

 
$
34,945


Schedule of Jointly Owned Utility Projects
The following is SCE's investment in each asset as of December 31, 2016:
(in millions)
Plant in Service
Construction Work in Progress
Accumulated
Depreciation
Nuclear Fuel
(at amortized cost)
Net Book Value
Ownership
Interest
Transmission systems:
 
 
 
 
 
 
Eldorado
$
235

$
10

$
21

$

$
224

59%
Pacific Intertie
192

21

80


133

50%
Generating station:
 
 
 
 
 
 
Palo Verde (nuclear)
1,959

62

1,547

126

600

16%
Total
$
2,386

$
93

$
1,648

$
126

$
957