Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2018

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)	2018			2017
Distribution	$	25,026		$	23,633
Transmission	13,800			13,127
Generation	3,598			3,468
General plant and other	4,398			4,534
Accumulated depreciation	(9,566		)	(9,355		)
	37,256			35,407
Construction work in progress	3,883			3,175
Nuclear fuel, at amortized cost	130			126
Total utility property, plant and equipment	$	41,269		$	38,708

Schedule of Jointly Owned Utility Projects

The following is SCE's investment in each asset as of December 31, 2018:

(in millions)	Plant in Service		Construction Work in Progress		Accumulated Depreciation		Nuclear Fuel (at amortized cost)		Net Book Value		Ownership Interest
Transmission systems:
Eldorado	$	245	$	13	$	29	$	—	$	229	59	%
Pacific Intertie	217		73		75		—		215		50	%
Generating station:
Palo Verde (nuclear)	2,024		63		1,567		130		650		16	%
Total	$	2,486	$	149	$	1,671	$	130	$	1,094