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Preferred and Preference Stock of Utility (Textual) (Details) - SCE - $ / shares | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Cumulative preferred stock $100 par value |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, par value (in dollars per share) | $ 100 |  |
Preferred stock, shares authorized | 12,000,000 |  |
Cumulative preferred stock $25 par value |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, par value (in dollars per share) | $ 25 |  |
Preferred stock, shares authorized | 24,000,000 |  |
No par value |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, shares authorized | 50,000,000 |  |
Preferred and Preference Stock |  |  |
Preferred and Preference Stock of Utility |  |  |
Preferred stock, shares issued | 0 | 0 | 0
Preferred stock, shares redeemed | 0 | 0 | 0

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