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Regulatory Assets and Liabilities (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2015 | Dec. 31, 2014
Regulatory Assets |  |
Regulatory Assets, Current | $ 473 | $ 1,254
Regulatory Asset, Long-term | 8,121 | 7,612
Regulatory Liabilities |  |
Regulatory Liabilities, Current | 888 | 401
Regulatory Liabilities, Long-term | 5,265 | 5,889
California Public Utilities Commission | Scenario, Forecast |  |
Regulatory Liabilities |  |
Decrease in revenue requirement | 40 |
Revenue requirement | (344) |
Southern California Edison |  |
Regulatory Assets |  |
Regulatory Assets, Current | 473 | 1,254
Regulatory Asset, Long-term | 8,121 | 7,612
Total Regulatory Assets | 8,594 | 8,866
Regulatory Liabilities |  |
Regulatory Liabilities, Current | 888 | 401
Regulatory Liabilities, Long-term | 5,265 | 5,889
Total Regulatory Liabilities | 6,153 | 6,290
Southern California Edison | Regulatory balancing accounts |  |
Regulatory Assets |  |
Regulatory Assets, Current | 287 | 1,088
Regulatory Asset, Long-term | 58 | 44
Southern California Edison | Energy derivatives |  |
Regulatory Assets |  |
Regulatory Assets, Current | 167 | 159
Regulatory Asset, Long-term | 990 | 850
Southern California Edison | Other |  |
Regulatory Assets |  |
Regulatory Assets, Current | 19 | 7
Regulatory Asset, Long-term | 385 | 351
Regulatory Liabilities |  |
Regulatory Liabilities, Current | 341 | 21
Regulatory Liabilities, Long-term | 78 | 24
Southern California Edison | Deferred income taxes, net |  |
Regulatory Assets |  |
Regulatory Asset, Long-term | 3,949 | 3,405
Southern California Edison | Pensions and other postretirement benefits |  |
Regulatory Assets |  |
Regulatory Asset, Long-term | 1,206 | 1,218
Southern California Edison | Unamortized investments, net |  |
Regulatory Assets |  |
Regulatory Asset, Long-term | 198 | 255
Southern California Edison | San Onofre |  |
Regulatory Assets |  |
Regulatory Asset, Long-term | 1,130 | 1,288
Southern California Edison | Unamortized loss on reacquired debt |  |
Regulatory Assets |  |
Regulatory Asset, Long-term | 205 | 201
Southern California Edison | Regulatory balancing accounts |  |
Regulatory Liabilities |  |
Regulatory Liabilities, Current | 547 | 380
Regulatory Liabilities, Long-term | 1,081 | 1,083
Southern California Edison | Regulatory balancing accounts | California Public Utilities Commission |  |
Regulatory Liabilities |  |
Regulatory Liabilities, Current | 318 |
Southern California Edison | Costs of removal |  |
Regulatory Liabilities |  |
Regulatory Liabilities, Long-term | 2,713 | 2,826
Southern California Edison | Recoveries in excess of ARO liabilities |  |
Regulatory Liabilities |  |
Regulatory Liabilities, Long-term | $ 1,393 | $ 1,956

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- Definition The amount for the individual regulatory asset as itemized in a table of regulatory assets as of the end of the period. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are expected to be recovered through revenue sources within one year or the normal operating cycle, if longer. Such costs are capitalized if they meet both of the following criteria: a. It is probable that future revenue in an amount at least equal to the capitalized cost will result from inclusion of that cost in allowable costs for rate-making purposes. b. Based on available evidence, the future revenue will be provided to permit recovery of the previously incurred cost rather than to provide for expected levels of similar future costs. If the revenue will be provided through an automatic rate-adjustment clause, this criterion requires that the regulator's intent clearly be to permit recovery of the previously incurred cost. + References Reference 1: http://www.xbrl.org/2003/role/presentationRef -Publisher FASB -Name Accounting Standards Codification -Topic 980 -SubTopic 340 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=6499975&loc=d3e44250-110382 + Details
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