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Summary of Significant Accounting Policies (Tables) | 6 Months Ended
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Jun. 30, 2013
Accounting Policies [Abstract] |
Cash Equivalents | 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) | June 30, 2013 |  | December 31, 2012 |  | June 30, 2013 |  | December 31, 2012
Cash reclassified to accounts payable | $ | 160 |  |  | $ | 247 |  |  | $ | 158 |  |  | $ | 242 |
The cash equivalents were as follows:
| Edison International |  | SCE
(in millions) | June 30, 2013 |  | December 31, 2012 |  | June 30, 2013 |  | December 31, 2012
Money market funds | $ | 72 |  |  | $ | 107 |  |  | $ | 10 |  |  | $ | 5 |
Inventory Components | Inventory consisted of the following:
(in millions) | June 30, 2013 |  | December 31, 2012
Materials, supplies and spare parts | $ | 244 |  |  | $ | 319 |
Fuel | 23 |  |  | 21 |
Total inventory | $ | 267 |  |  | $ | 340 |
EPS Attributable to Edison International Common Shareholders | EPS attributable to Edison International common shareholders was computed as follows:
| Three months ended June 30, |  | Six months ended June 30,
(in millions) | 2013 |  | 2012 |  | 2013 |  | 2012
Basic earnings per share – continuing operations: |  |  |  |  |  |  |
Income (loss) from continuing operations available to common shareholders | $ | (106 | ) |  | $ | 183 |  |  | $ | 152 |  |  | $ | 360 |
Weighted average common shares outstanding | 326 |  |  | 326 |  |  | 326 |  |  | 326 |
Basic earnings per share – continuing operations | $ | (0.33 | ) |  | $ | 0.56 |  |  | $ | 0.47 |  |  | $ | 1.10 |
Diluted earnings per share – continuing operations: |  |  |  |  |  |  |
Income (loss) from continuing operations available to common shareholders | $ | (106 | ) |  | $ | 183 |  |  | $ | 152 |  |  | $ | 360 |
Income impact of assumed conversions | — |  |  | — |  |  | — |  |  | — |
Income (loss) from continuing operations available to common shareholders and assumed conversions | $ | (106 | ) |  | $ | 183 |  |  | $ | 152 |  |  | $ | 360 |
Weighted average common shares outstanding | 326 |  |  | 326 |  |  | 326 |  |  | 326 |
Incremental shares from assumed conversions | — |  | 1 | 8 |  |  | 3 |  |  | 7 |
Adjusted weighted average shares – diluted | 326 |  |  | 334 |  |  | 329 |  |  | 333 |
Diluted earnings per share – continuing operations | $ | (0.33 | ) |  | $ | 0.55 |  |  | $ | 0.47 |  |  | $ | 1.08 |
Asset Retirement Obligation |
(in millions) | June 30, 2013 |  | December 31, 2012
Beginning balance | $ | 2,782 |  |  | $ | 2,610 |
Accretion expense | 85 |  |  | 161 |
Revisions | 455 |  |  | 12 |
Liabilities settled | — |  |  | (1 | )
Ending balance | $ | 3,322 |  |  | $ | 2,782 |

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- Definition The entire disclosure for inventory. This may include, but is not limited to, the basis of stating inventory, the method of determining inventory cost, the major classes of inventory, and the nature of the cost elements included in inventory. If inventory is stated above cost, accrued net losses on firm purchase commitments for inventory and losses resulting from valuing inventory at the lower-of-cost-or-market may also be included. For LIFO inventory, may disclose the amount and basis for determining the excess of replacement or current cost over stated LIFO value and the effects of a LIFO quantities liquidation that impacts net income. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6361739&loc=d3e7789-107766 Reference 2: http://www.xbrl.org/2003/role/presentationRef -Publisher AICPA -Name Accounting Research Bulletin (ARB) -Number 43 -Section A -Paragraph 9 -Chapter 3 -LegacyDoc This reference is SUPERSEDED by the Accounting Standards Codification effective for interim and annual periods ending after September 15, 2009. This reference is included to help users transition from the previous accounting hierarchy and will be removed from future versions of this taxonomy. Reference 3: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.6) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://www.xbrl.org/2003/role/presentationRef -Publisher SEC -Name Regulation S-X (SX) -Number 210 -Section 02 -Paragraph 6 -Subparagraph a, b, c -Article 5 + Details
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- Definition Tabular disclosure of the changes in carrying amount of a liability for asset retirement obligations, for changes such as new obligations, changes in estimates of existing obligations, spending on existing obligations, property dispositions, and foreign currency translation. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 410 -SubTopic 30 -Section 50 -Paragraph 5 -URI http://asc.fasb.org/extlink&oid=6393242&loc=d3e13201-110859 + Details
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