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Summary of Significant Accounting Policies | 3 Months Ended
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Mar. 31, 2014
Accounting Policies [Abstract] |
Summary of Significant Accounting Policies | Summary of Significant Accounting Policies Organization and Basis of Presentation Edison International is the parent holding company of Southern California Edison Company ("SCE"). SCE is an investor-owned public utility primarily engaged in the business of supplying and delivering electricity to an approximately 50,000 square mile area of southern California. Edison International is also the parent company of subsidiaries that are engaged in competitive businesses related to the delivery or use of electricity. Such competitive business activities are currently not material to report as a separate business segment. These combined notes to the consolidated financial statements apply to both Edison International and SCE unless otherwise described. Edison International's consolidated financial statements include the accounts of Edison International, SCE and other wholly owned and controlled subsidiaries. References to Edison International refer to the consolidated group of Edison International and its subsidiaries. References to Edison International Parent and Other refer to Edison International Parent and its nonutility subsidiaries. SCE's consolidated financial statements include the accounts of SCE and its wholly owned and controlled subsidiaries. All intercompany transactions have been eliminated from the consolidated financial statements. Edison International's and SCE's significant accounting policies were described in Note 1 of "Notes to Consolidated Financial Statements" included in the 2013 Form 10-K. The same accounting policies are followed for interim reporting purposes, with the exception of accounting principles adopted as of January 1, 2014, discussed below in "—New Accounting Guidance." This quarterly report should be read in conjunction with the financial statements and notes included in the 2013 Form 10-K. In the opinion of management, all adjustments, consisting of recurring accruals, have been made that are necessary to fairly state the consolidated financial position, results of operations and cash flows in accordance with accounting principles generally accepted in the United States of America for the periods covered by this quarterly report on Form 10-Q. The results of operations for the three-month period ended March 31, 2014 are not necessarily indicative of the operating results for the full year. The December 31, 2013 condensed consolidated balance sheet data was derived from audited financial statements, but does not include all disclosures required by accounting principles generally accepted in the United States of America. Cash Equivalents Cash equivalents included investments in money market funds. Generally, the carrying value of cash equivalents equals the fair value, as these investments have original maturities of three months or less. The cash equivalents were as follows:
|  | Edison International |  | SCE
(in millions) |  | March 31, 2014 |  | December 31, 2013 |  | March 31, 2014 |  | December 31, 2013
Money market funds |  | $ | 67 |  |  | $ | 68 |  |  | $ | 6 |  |  | $ | 8 |
Cash is temporarily invested until required for check clearing from the primary disbursement accounts. 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) |  | March 31, 2014 |  | December 31, 2013 |  | March 31, 2014 |  | December 31, 2013
Cash reclassified to accounts payable |  | $ | 149 |  |  | $ | 168 |  |  | $ | 148 |  |  | $ | 163 |
Inventory Inventory is primarily composed of materials, supplies and spare parts, and stated at the lower of cost or market, cost being determined by the average cost method. Earnings Per Share Edison International computes earnings per common share ("EPS") using the two-class method, which is an earnings allocation formula that determines EPS for each class of common stock and participating security. Edison International's participating securities are stock-based compensation awards payable in common shares, including performance shares and restricted stock units, which earn dividend equivalents on an equal basis with common shares once the awards are vested. EPS attributable to Edison International common shareholders was computed as follows:
|  | Three months ended March 31,
(in millions) |  | 2014 |  | 2013
Basic earnings per share – continuing operations: |  |  |  |
Income from continuing operations available to common shareholders |  | $ | 198 |  |  | $ | 259 |
Weighted average common shares outstanding |  | 326 |  |  | 326 |
Basic earnings per share – continuing operations |  | $ | 0.61 |  |  | $ | 0.79 |
Diluted earnings per share – continuing operations: |  |  |  |
Income from continuing operations available to common shareholders |  | $ | 198 |  |  | $ | 259 |
Income impact of assumed conversions |  | — |  |  | — |
Income from continuing operations available to common shareholders and assumed conversions |  | $ | 198 |  |  | $ | 259 |
Weighted average common shares outstanding |  | 326 |  |  | 326 |
Incremental shares from assumed conversions |  | 3 |  |  | 3 |
Adjusted weighted average shares – diluted |  | 329 |  |  | 329 |
Diluted earnings per share – continuing operations |  | $ | 0.61 |  |  | $ | 0.78 |
In addition to the participating securities discussed above, Edison International also may award stock options which are payable in common shares and are included in the diluted earnings per share calculation. Stock option awards to purchase 2,050,449 and 4,455,669 shares of common stock for the three months ended March 31, 2014 and 2013, respectively, were outstanding, but were not included in the computation of diluted earnings per share because the exercise price of the awards was greater than the average market price of the common shares during the respective periods and, therefore, the effect would have been antidilutive. New Accounting Guidance Accounting Guidance Adopted in 2014 In July 2013, the FASB issued an accounting standards update that requires that an unrecognized tax benefit be presented on the balance sheet as a reduction of a deferred tax asset for a net operating loss ("NOL") or tax credit carryforward under certain circumstances. Edison International and SCE adopted this guidance effective January 1, 2014 and it did not have a material impact on the consolidated financial statements. Accounting Guidance Not Yet Adopted In April 2014, the FASB issued an accounting standards update which will reduce the number of disposals that qualify for reporting as a discontinued operation and will also increase the associated disclosure. Under the new guidance, only disposals representing a strategic shift in operations should be presented as discontinued operations. In addition, this update also requires disclosure of the pre-tax income attributable to a disposal of a significant part of an organization that does not qualify for discontinued operations reporting. Edison International and SCE will adopt this guidance prospectively effective January 1, 2015.

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