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Income Taxes (Tax Rate Reconciliation) (Details) - USD ($) $ in Millions | 3 Months Ended
--- | ---
Mar. 31, 2019 | Mar. 31, 2018
Income Tax Disclosures [Line Items] |  |
Income from continuing operations before income taxes | $ 196 | $ 211
Provision for income tax at federal statutory rate of 21% | 41 | 44
Increase in income tax from: |  |
State tax, net of federal benefit | (7) | (5)
Property-related | (69) | (69)
Shared-based compensation | (2) | 0
Deferred tax re-measurement | (69) | 0
Other | (6) | (1)
Total income tax benefit from continuing operations | $ (112) | $ (31)
Effective tax rate | (57.10%) | (14.70%)
State |  |
Increase in income tax from: |  |
Shared-based compensation | $ 1 |
Southern California Edison |  |
Income Tax Disclosures [Line Items] |  |
Income from continuing operations before income taxes | 218 | $ 310
Provision for income tax at federal statutory rate of 21% | 46 | 65
Increase in income tax from: |  |
State tax, net of federal benefit | (5) | 1
Property-related | (69) | (69)
Shared-based compensation | (2) | 0
Deferred tax re-measurement | (69) | 0
Other | (6) | (3)
Total income tax benefit from continuing operations | $ (105) | $ (6)
Effective tax rate | (48.20%) | (1.90%)
Southern California Edison | State |  |
Increase in income tax from: |  |
Shared-based compensation | $ 1 |

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