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Variable Interest Entities | 12 Months Ended
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Dec. 31, 2015
Variable Interest Entities Disclosure [Abstract] |
Variable Interest Entities | Variable Interest Entities A variable interest entity ("VIE") is defined as a legal entity that meets one of two conditions: (1) the equity owners do not have sufficient equity at risk, or (2) the holders of the equity investment at risk, as a group, lack any of the following three characteristics: decision-making rights, the obligation to absorb losses, or the right to receive the expected residual returns of the entity. The primary beneficiary is identified as the variable interest holder that has both the power to direct the activities of the VIE that most significantly impact the entity's economic performance and the obligation to absorb losses or the right to receive benefits from the entity that could potentially be significant to the VIE. The primary beneficiary is required to consolidate the VIE. A subsidiary of Edison International is the primary beneficiary of an entity that owns rooftop solar projects (for further information, see Note 1—Redeemable Noncontrolling Interests). Commercial and operating activities are generally the factors that most significantly impact the economic performance of such VIEs. Commercial and operating activities include construction, operation and maintenance, fuel procurement, dispatch and compliance with regulatory and contractual requirements. Variable Interest in VIEs that are not Consolidated Power Purchase Contracts SCE has power purchase agreements ("PPAs") that are classified as variable interests in VIEs, including tolling agreements through which SCE provides the natural gas to fuel the plants and contracts with qualifying facilities ("QFs") that contain variable pricing provisions based on the price of natural gas. SCE has concluded that it is not the primary beneficiary of these VIEs since it does not control the commercial and operating activities of these entities. Since payments for capacity are the primary source of income, the most significant economic activity for these VIEs is the operation and maintenance of the power plants. As of the balance sheet date, the carrying amount of assets and liabilities in SCE's consolidated balance sheet that relate to its involvement with VIEs result from amounts due under the PPAs or the fair value of those derivative contracts. Under these contracts, SCE recovers the costs incurred through demonstration of compliance with its CPUC-approved long-term power procurement plans. SCE has no residual interest in the entities and has not provided or guaranteed any debt or equity support, liquidity arrangements, performance guarantees or other commitments associated with these contracts other than the purchase commitments described in Note 11. As a result, there is no significant potential exposure to loss to SCE from its variable interest in these VIEs. The aggregate contracted capacity dedicated to SCE from these VIE projects was 4,062 MW and 5,641 MW at December 31, 2015 and 2014, respectively, and the amounts that SCE paid to these projects were $640 million and $739 million for the years ended December 31, 2015 and 2014, respectively. These amounts are recoverable in customer rates, subject to reasonableness review. Unconsolidated Trusts of SCE SCE Trust I, Trust II, Trust III and Trust IV were formed in 2012, 2013, 2014 and 2015 respectively, for the exclusive purpose of issuing the 5.625%, 5.10%, 5.75% and 5.375% trust preference securities, respectively ("trust securities"). The trusts are VIEs. SCE has concluded that it is not the primary beneficiary of these VIEs as it does not have the obligation to absorb the expected losses or the right to receive the expected residual returns of the trusts. SCE Trust I, Trust II, Trust III and Trust IV issued trust securities in the face amount of $475 million, $400 million, $275 million and $325 million, respectively, (cumulative, liquidation amount of $25 per share) to the public and $10,000 of common stock each to SCE. The trusts invested the proceeds of these trust securities in Series F, Series G, Series H and Series J Preference Stock issued by SCE in the principal amount of $475 million, $400 million, $275 million and $325 million (cumulative, $2,500 per share liquidation value), respectively, which have substantially the same payment terms as the trust securities. The Series F, Series G, Series H and Series J Preference Stock and the corresponding trust securities do not have a maturity date. Upon any redemption of any shares of the Series F, Series G, Series H or Series J Preference Stock, a corresponding dollar amount of trust securities will be redeemed by the applicable trust (see Note 12 for further information). The applicable trust will make distributions at the same rate and on the same dates on the applicable series of trust securities when and if the SCE board of directors declares and makes dividend payments on the related Preference Stock. The applicable trusts will use any dividends it receives on the related Preference Stock to make its corresponding distributions on the applicable series of trust securities. If SCE does not make a dividend payment to any of these trusts, SCE would be prohibited from paying dividends on its common stock. SCE has fully and unconditionally guaranteed the payment of the trust securities and trust distributions, if and when SCE pays dividends on the related Preference Stock. The Trust I, Trust II and Trust III balance sheets as of December 31, 2015, and 2014 consisted of investments of $475 million, $400 million and $275 million in the Series F, Series G and Series H Preference Stock respectively, $475 million, $400 million and $275 million of trust securities, respectively and $10,000 each of common stock. The Trust IV balance sheet as of December 31, 2015 consisted of investments of $325 million in the Series J Preference Stock, $325 million of trust securities, and $10,000 of common stock. The following table provides a summary of the trusts' income statements:
| Years ended December 31,
(in millions) | Trust I |  | Trust II |  | Trust III |  | Trust IV
2015 |  |  |  |  |  |  |
Dividend income | $ | 27 |  |  | $ | 20 |  |  | $ | 16 |  |  | $ | 6 |
Dividend distributions | 27 |  |  | 20 |  |  | 16 |  |  | 6 |
2014 |  |  |  |  |  |  |
Dividend income | $ | 27 |  |  | $ | 20 |  |  | $ | 13 |  |  | * |
Dividend distributions | 27 |  |  | 20 |  |  | 13 |  |  | * |
2013 |  |  |  |  |  |  |
Dividend income | $ | 27 |  |  | $ | 19 |  |  | * |  |  | * |
Dividend distributions | 27 |  |  | 19 |  |  | * |  |  | * |
* Not applicable

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