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Summary of Significant Accounting Policies (Tables) | 9 Months Ended
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Sep. 30, 2016
Accounting Policies [Abstract] |
Cash Equivalents | The cash equivalents were as follows:
|  | Edison International |  | SCE
(in millions) |  | September 30, 2016 |  | December 31, 2015 |  | September 30, 2016 |  | December 31, 2015
Money market funds |  | $ | 39 |  |  | $ | 37 |  |  | $ | 18 |  |  | $ | 8 |
Cash is temporarily invested until required for check clearing. Checks issued, but not yet paid by the financial institution, are reclassified from cash to accounts payable at the end of each reporting period as follows:
|  | Edison International |  | SCE
(in millions) |  | September 30, 2016 |  | December 31, 2015 |  | September 30, 2016 |  | December 31, 2015
Book balances reclassified to accounts payable |  | $ | 130 |  |  | $ | 162 |  |  | $ | 128 |  |  | $ | 158 |
EPS Attributable to Edison International Common Shareholders | EPS attributable to Edison International common shareholders was computed as follows:
|  | Three months ended September 30, |  | Nine months ended September 30,
(in millions, except per-share amounts) |  | 2016 |  | 2015 |  | 2016 |  | 2015
Basic earnings per share – continuing operations: |  |  |  |  |  |  |  |
Income from continuing operations attributable to common shareholders |  | $ | 419 |  |  | $ | 378 |  |  | $ | 966 |  |  | $ | 1,056 |
Participating securities dividends |  | — |  |  | — |  |  | — |  |  | (1 | )
Income from continuing operations available to common shareholders |  | $ | 419 |  |  | $ | 378 |  |  | $ | 966 |  |  | $ | 1,055 |
Weighted average common shares outstanding |  | 326 |  |  | 326 |  |  | 326 |  |  | 326 |
Basic earnings per share – continuing operations |  | $ | 1.29 |  |  | $ | 1.16 |  |  | $ | 2.96 |  |  | $ | 3.24 |
Diluted earnings per share – continuing operations: |  |  |  |  |  |  |  |
Income from continuing operations available to common shareholders |  | $ | 419 |  |  | $ | 378 |  |  | $ | 966 |  |  | $ | 1,055 |
Income impact of assumed conversions |  | — |  |  | — |  |  | — |  |  | 1 |
Income from continuing operations available to common shareholders and assumed conversions |  | $ | 419 |  |  | $ | 378 |  |  | $ | 966 |  |  | $ | 1,056 |
Weighted average common shares outstanding |  | 326 |  |  | 326 |  |  | 326 |  |  | 326 |
Incremental shares from assumed conversions |  | 3 |  |  | 2 |  |  | 3 |  |  | 3 |
Adjusted weighted average shares – diluted |  | 329 |  |  | 328 |  |  | 329 |  |  | 329 |
Diluted earnings per share – continuing operations |  | $ | 1.27 |  |  | $ | 1.15 |  |  | $ | 2.94 |  |  | $ | 3.21 |

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- Definition Tabular disclosure of an entity's basic and diluted earnings per share calculations, including a reconciliation of numerators and denominators of the basic and diluted per-share computations for income from continuing operations. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 260 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6371337&loc=d3e3550-109257 + Details
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