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Income Taxes (Tables) | 3 Months Ended
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Mar. 31, 2017
Income Tax Disclosure [Abstract] |
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:
| Edison International |  | SCE
| Three months ended March 31,
(in millions) | 2017 |  | 2016 |  | 2017 |  | 2016
Income from continuing operations before income taxes | $ | 352 |  |  | $ | 333 |  |  | $ | 392 |  |  | $ | 367 |
Provision for income tax at federal statutory rate of 35% | 124 |  |  | 117 |  |  | 137 |  |  | 128 |
Increase in income tax from: |  |  |  |  |  |  |
State tax, net of federal benefit | 10 |  |  | 6 |  |  | 13 |  |  | 9 |
Property-related | (113 | ) |  | (79 | ) |  | (113 | ) |  | (79 | )
Change related to uncertain tax positions | (12 | ) |  | (1 | ) |  | (11 | ) |  | (1 | )
Shared-based compensation 1 | (43 | ) |  | (10 | ) |  | (8 | ) |  | (8 | )
Other | (6 | ) |  | (5 | ) |  | (6 | ) |  | (7 | )
Total income tax (benefit) expense from continuing operations | $ | (40 | ) |  | $ | 28 |  |  | $ | 12 |  |  | $ | 42 |
Effective tax rate | (11.4 | )% |  | 8.4 | % |  | 3.1 | % |  | 11.4 | %
1 | Includes state taxes for Edison International and SCE of $6 million and $1 million, respectively, for the three months ended March 31, 2017 and $3 million and $2 million, respectively, for the three months ended March 31, 2016. Refer to Note 1 for further information.
Reconciliation of Unrecognized Tax Benefits | The following table provides a reconciliation of unrecognized tax benefits for 2017 as a result of the audit settlement:
(in millions) | Edison International |  | SCE
Balance at January 1, 2017 | $ | 471 |  |  | $ | 371 |
Tax positions taken during the current year: |  |  |
Increases | 10 |  |  | 10 |
Tax positions taken during a prior year: |  |  |
Increases | 2 |  |  | 2 |
Decreases | (10 | ) |  | (10 | )
Decreases for settlements during the period | (82 | ) |  | (78 | )
Balance at March 31, 2017 | $ | 391 |  |  | $ | 295 |

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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://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 740 -SubTopic 10 -Section 50 -Paragraph 12 -URI http://asc.fasb.org/extlink&oid=65882285&loc=d3e32687-109319 + Details
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