Property, Plant and Equipment (Tables)

12 Months Ended

Dec. 31, 2020

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)	2020		2019
Distribution	$	28,663	$	26,929
Transmission	15,669		14,720
Generation	3,709		3,664
General plant and other	5,129		4,583
Accumulated depreciation	(10,681)		(9,958)
	42,489		39,938
Construction work in progress	5,033		4,131
Nuclear fuel, at amortized cost	131		129
Total utility property, plant and equipment	$	47,653	$	44,198

Schedule of Jointly Owned Utility Projects

The following is SCE's investment in each asset as of December 31, 2020:

(in millions)	Plant in Service		Construction Work in Progress		Accumulated Depreciation		Nuclear Fuel (at amortized cost)		Net Book Value		Ownership Interest
Transmission systems:
Eldorado	$	324	$	74	$	39	$	—	$	359	79	%
Pacific Intertie	346		—		74		—		272		50	%
Generating station:
Palo Verde (nuclear)	2,113		53		1,609		131		688		16	%
Total	$	2,783	$	127	$	1,722	$	131	$	1,319