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Accumulated Other Comprehensive Loss (Tables) | 9 Months Ended
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Sep. 30, 2020
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss | Edison International's accumulated other comprehensive loss, net of tax, consist of:
| Three months ended September 30, |  |  |  | Nine months ended September 30, |  |  |
(in millions) | 2020 |  | 2019 |  | 2020 |  | 2019 |
Beginning balance | $ | (65) |  |  | $ | (57) |  |  | $ | (69) |  |  | $ | (50) |  |
Pension and PBOP – net loss: |  |  |  |  |  |  |  |
Reclassified from accumulated other comprehensive loss1 | 2 |  |  | 2 |  |  | 6 |  |  | 5 |  |
Other2 | — |  |  | — |  |  | — |  |  | (10) |  |
Change | 2 |  |  | 2 |  |  | 6 |  |  | (5) |  |
Ending Balance | $ | (63) |  |  | $ | (55) |  |  | $ | (63) |  |  | $ | (55) |  |
1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information. 2 Edison International recognized cumulative effect adjustments to the opening balance of retained earnings and accumulated other comprehensive loss on January 1, 2019 related to the adoption of the accounting standards update on the reclassification of stranded tax effects resulting from Tax Reform. SCE's accumulated other comprehensive loss, net of tax, consist of:
| Three months ended September 30, |  |  |  | Nine months ended September 30, |  |  |
(in millions) | 2020 |  | 2019 |  | 2020 |  | 2019 |
Beginning balance | $ | (36) |  |  | $ | (26) |  |  | $ | (39) |  |  | $ | (23) |  |
Pension and PBOP – net loss: |  |  |  |  |  |  |  |
Reclassified from accumulated other comprehensive loss1 | 1 |  |  | 1 |  |  | 4 |  |  | 3 |  |
Other2 | — |  |  | — |  |  | — |  |  | (5) |  |
Change | 1 |  |  | 1 |  |  | 4 |  |  | (2) |  |
Ending Balance | $ | (35) |  |  | $ | (25) |  |  | $ | (35) |  |  | $ | (25) |  |
1 These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 9 for additional information. 2 SCE recognized cumulative effect adjustments to the opening balance of retained earnings and accumulated other comprehensive loss on January 1, 2019 related to the adoption of the accounting standards update on the reclassification of stranded tax effects resulting from Tax Reform.

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