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Income Taxes (Tax Rate Reconciliation) (Details) - USD ($) $ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Income Tax Disclosure [Line Items] |  |  |
Income (loss) from continuing operations before income taxes | $ 566 | $ 1,127 | $ (1,089)
Provision for income tax at federal statutory rate of 21% for 2019 and 2018, and 35% for 2017 | 119 | 237 | (229)
Increase in income tax from: |  |  |
State tax, net of federal benefit | (61) | (22) | (168)
Property-related | (320) | (303) | (275)
Change related to uncertain tax positions | (15) | 0 | (66)
Deferred tax re-measurement | 0 | (88) | 0
2018 GRC Final Decision | 0 | (80) | 0
Corporate-owned life insurance cash surrender value | (8) | (8) | (8)
Other | (20) | (14) | 7
Total continuing operations | $ (305) | $ (278) | $ (739)
Effective tax rate | (53.90%) | (24.70%) | (67.90%)
SCE |  |  |
Income Tax Disclosure [Line Items] |  |  |
Income (loss) from continuing operations before income taxes | $ 665 | $ 1,301 | $ (885)
Provision for income tax at federal statutory rate of 21% for 2019 and 2018, and 35% for 2017 | 140 | 273 | (186)
Increase in income tax from: |  |  |
State tax, net of federal benefit | (52) | (13) | (155)
Property-related | (320) | (303) | (275)
Change related to uncertain tax positions | (19) | 0 | (71)
Deferred tax re-measurement | 0 | (88) | 0
2018 GRC Final Decision | 0 | (80) | 0
Corporate-owned life insurance cash surrender value | (8) | (8) | (8)
Other | (18) | (10) | (1)
Total continuing operations | $ (277) | $ (229) | $ (696)
Effective tax rate | (41.70%) | (17.60%) | (78.60%)

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- Definition Amount of reported income tax expense (benefit) in excess of (less than) expected income tax expense (benefit) computed by applying domestic federal statutory income tax rate to pretax income (loss) from continuing operations, attributable to Tax Cuts and Jobs Act. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=84230637&loc=d3e32687-109319 + Details
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