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Income Taxes (Tables) | 6 Months Ended
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Jun. 30, 2023
Income Taxes |
Summary of reconciliation of income tax expense | The table below provides a reconciliation of income tax expense computed at the federal statutory income tax rate to the income tax provision:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Three months ended June 30, | ​ | Six months ended June 30, | ​
(in millions) |  | 2023 |  | 2022 |  | 2023 |  | 2022 | ​
Edison International: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income from operations before income taxes | ​ | $ | 460 | ​ | $ | 299 | ​ | $ | 838 | ​ | $ | 380 | ​
Provision for income tax at federal statutory rate of 21% | ​ |  | 97 | ​ |  | 63 | ​ |  | 176 | ​ |  | 80 | ​
Increase (decrease) in income tax from: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
State tax, net of federal benefit | ​ |  | 1 | ​ |  | (4) | ​ |  | — | ​ |  | (21) | ​
Property-related | ​ |  | (47) | ​ |  | (48) | ​ |  | (105) | ​ |  | (93) | ​
Other | ​ |  | — | ​ |  | (4) | ​ |  | (7) | ​ |  | (14) | ​
Total income tax expense (benefit) | ​ | $ | 51 | ​ | $ | 7 | ​ | $ | 64 | ​ | $ | (48) | ​
Effective tax rate | ​ |  | 11.1 | % |  | 2.3 | % |  | 7.6 | % |  | (12.6) | %
SCE: | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
Income from operations before income taxes | ​ | $ | 517 | ​ | $ | 349 | ​ | $ | 945 | ​ | $ | 482 | ​
Provision for income tax at federal statutory rate of 21% | ​ |  | 109 | ​ |  | 73 | ​ |  | 198 | ​ |  | 101 | ​
Increase (decrease) in income tax from: | ​ |  |  | ​ |  |  | ​ |  |  | ​ |  |  | ​
State tax, net of federal benefit | ​ |  | 8 | ​ |  | — | ​ |  | 11 | ​ |  | (13) | ​
Property-related | ​ |  | (47) | ​ |  | (48) | ​ |  | (105) | ​ |  | (93) | ​
Other | ​ |  | (2) | ​ |  | (3) | ​ |  | (7) | ​ |  | (13) | ​
Total income tax expense (benefit) | ​ | $ | 68 | ​ | $ | 22 | ​ | $ | 97 | ​ | $ | (18) | ​
Effective tax rate | ​ |  | 13.2 | % |  | 6.3 | % |  | 10.3 | % |  | (3.7) | %

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- Definition Tabular disclosure of the reconciliation using percentage or dollar amounts of the reported amount of income tax expense attributable to continuing operations for the year to the amount of income tax expense that would result from applying domestic federal statutory tax rates to pretax income from continuing operations. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 740 -SubTopic 10 -Name Accounting Standards Codification -Paragraph 12 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482685/740-10-50-12 + Details
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