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Accumulated Other Comprehensive Loss (Tables) | 3 Months Ended
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Mar. 31, 2017
Equity [Abstract] |
Components of Accumulated Other Comprehensive Loss | The changes in accumulated other comprehensive loss, net of tax, consist of:
| Edison International |  | SCE
| Three months ended March 31,
(in millions) | 2017 |  | 2016 |  | 2017 |  | 2016
Beginning balance | $ | (53 | ) |  | $ | (56 | ) |  | $ | (20 | ) |  | $ | (22 | )
Pension and PBOP – net loss: |  |  |  |  |  |  |
Reclassified from accumulated other comprehensive loss 1 | 2 |  |  | 2 |  |  | 1 |  |  | 1 |
Other | 2 |  |  | — |  |  | 1 |  |  | — |
Change | 4 |  |  | 2 |  |  | 2 |  |  | 1 |
Ending Balance | $ | (49 | ) |  | $ | (54 | ) |  | $ | (18 | ) |  | $ | (21 | )
1 | These items are included in the computation of net periodic pension and PBOP Plan expense. See Note 8 for additional information.

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- Definition Tabular disclosure of the components of accumulated other comprehensive income (loss). + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 220 -SubTopic 10 -Section 45 -Paragraph 14A -URI http://asc.fasb.org/extlink&oid=66004124&loc=SL7669686-108580 + Details
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