Property, Plant and Equipment (Schedule of Property, Plant and Equipment) (Details) - USD ($) $ in Millions |
Dec. 31, 2019 |
Dec. 31, 2018 |
---|---|---|
Property, Plant and Equipment [Line Items] | ||
Accumulated depreciation | $ (9,958) | $ (9,566) |
Total utility property, plant and equipment | 44,198 | 41,269 |
SCE | ||
Property, Plant and Equipment [Line Items] | ||
Distribution | 26,929 | 25,026 |
Transmission | 14,720 | 13,800 |
Generation | 3,664 | 3,598 |
General plant and other | 4,583 | 4,398 |
Accumulated depreciation | (9,958) | (9,566) |
Total utility property, plant and equipment, Gross | 39,938 | 37,256 |
Construction work in progress | 4,131 | 3,883 |
Nuclear fuel, at amortized cost | 129 | 130 |
Total utility property, plant and equipment | $ 44,198 | $ 41,269 |