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Income Taxes (Tax Rate Reconciliation) (Details) - USD ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Income Tax Disclosure [Line Items] |  |  |
(Loss) income from continuing operations before income taxes | $ (1,089) | $ 949 | $ 1,590
Provision for income tax at federal statutory rate of 21% and 35%, respectively1 | (229) | 332 | 556
Increase in income tax from: |  |  |
State tax, net of federal benefit | (168) | 2 | 29
Property-related | (275) | (439) | (362)
Change related to uncertain tax positions | (66) | (18) | (4)
Revised San Onofre Settlement Agreement | 0 | 25 | 0
Share-based compensation | (2) | (55) | (28)
Deferred tax re-measurement | 0 | 466 | 0
Other | 1 | (32) | (14)
Total continuing operations | $ (739) | $ 281 | $ 177
Effective tax rate | (67.90%) | 29.60% | 11.10%
State |  |  |
Increase in income tax from: |  |  |
Share-based compensation |  | $ (11) | $ (4)
SCE |  |  |
Income Tax Disclosure [Line Items] |  |  |
(Loss) income from continuing operations before income taxes | $ (885) | 1,106 | 1,755
Provision for income tax at federal statutory rate of 21% and 35%, respectively1 | (186) | 387 | 614
Increase in income tax from: |  |  |
State tax, net of federal benefit | (155) | 8 | 43
Property-related | (275) | (439) | (362)
Change related to uncertain tax positions | (71) | (13) | (8)
Revised San Onofre Settlement Agreement | 0 | 25 | 0
Share-based compensation | (1) | (11) | (13)
Deferred tax re-measurement | 0 | 33 | 0
Other | (8) | (20) | (18)
Total continuing operations | $ (696) | $ (30) | $ 256
Effective tax rate | (78.60%) | (2.70%) | 14.60%
SCE | State |  |  |
Increase in income tax from: |  |  |
Share-based compensation |  | $ (2) | $ (1)

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