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Variable Interest Entities (Details) - Southern California Edison | 3 Months Ended | 9 Months Ended |
--- | --- | --- | ---
Sep. 30, 2015 USD ($) $ / shares MW | Sep. 30, 2014 USD ($) MW | Sep. 30, 2015 USD ($) $ / shares MW | Sep. 30, 2014 USD ($) MW | Dec. 31, 2014 USD ($)
Series J Preferred Stock |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Security dividend rate, (as a percent) | 5.375% |  |  |  |
Liquidation preference | $ 325,000,000 |  | $ 325,000,000 |  |
Liquidation value (in dollars per share) | $ / shares | $ 2,500 |  | $ 2,500 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Power Purchase Contracts |  |  |  |  |
Details of projects or entities |  |  |  |  |
Power generating capacity (in megawatts) | MW | 4,062 | 5,341 | 4,062 | 5,341 |
Payments to unconsolidated VIEs for power purchase contracts | $ 270,000,000 | $ 319,000,000 | $ 451,000,000 | $ 526,000,000 |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust I |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Dividend income | 7,000,000 | 7,000,000 | 20,000,000 | 20,000,000 |
Dividend distributions | 7,000,000 | 7,000,000 | $ 20,000,000 | 20,000,000 |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust I | Trust Securities |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Security dividend rate, (as a percent) |  |  | 5.625% |  |
Liquidation preference | $ 475,000,000 |  | $ 475,000,000 |  | $ 475,000,000
Liquidation value (in dollars per share) | $ / shares | $ 25 |  | $ 25 |  |
Common stock | $ 10,000 |  | $ 10,000 |  | 10,000
Variable Interest Entity, Not Primary Beneficiary | SCE Trust I | Series F Preferred Stock |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Liquidation preference | $ 475,000,000 |  | $ 475,000,000 |  | 475,000,000
Liquidation value (in dollars per share) | $ / shares | $ 2,500 |  | $ 2,500 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust II |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Dividend income | $ 5,000,000 | 5,000,000 | $ 15,000,000 | 15,000,000 |
Dividend distributions | 5,000,000 | 5,000,000 | $ 15,000,000 | 15,000,000 |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust II | Trust Securities |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Security dividend rate, (as a percent) |  |  | 5.10% |  |
Liquidation preference | $ 400,000,000 |  | $ 400,000,000 |  | 400,000,000
Liquidation value (in dollars per share) | $ / shares | $ 25 |  | $ 25 |  |
Common stock | $ 10,000 |  | $ 10,000 |  | 10,000
Variable Interest Entity, Not Primary Beneficiary | SCE Trust II | Series G Preferred Stock |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Liquidation preference | $ 400,000,000 |  | $ 400,000,000 |  | 400,000,000
Liquidation value (in dollars per share) | $ / shares | $ 2,500 |  | $ 2,500 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust III |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Dividend income | $ 4,000,000 | 4,000,000 | $ 12,000,000 | 9,000,000 |
Dividend distributions | 4,000,000 | $ 4,000,000 | $ 12,000,000 | $ 9,000,000 |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust III | Trust Securities |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Security dividend rate, (as a percent) |  |  | 5.75% |  |
Liquidation preference | $ 275,000,000 |  | $ 275,000,000 |  | 275,000,000
Liquidation value (in dollars per share) | $ / shares | $ 25 |  | $ 25 |  |
Common stock | $ 10,000 |  | $ 10,000 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust III | Series H Preferred Stock |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Liquidation preference | $ 275,000,000 |  | $ 275,000,000 |  | $ 275,000,000
Liquidation value (in dollars per share) | $ / shares | $ 2,500 |  | $ 2,500 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust IV |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Dividend income | $ 2,000,000 |  | $ 2,000,000 |  |
Dividend distributions | 2,000,000 |  | $ 2,000,000 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust IV | Trust Securities |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Security dividend rate, (as a percent) |  |  | 5.375% |  |
Liquidation preference | $ 325,000,000 |  | $ 325,000,000 |  |
Liquidation value (in dollars per share) | $ / shares | $ 25 |  | $ 25 |  |
Common stock | $ 10,000 |  | $ 10,000 |  |
Variable Interest Entity, Not Primary Beneficiary | SCE Trust IV | Series J Preferred Stock |  |  |  |  |
Unconsolidated Trust |  |  |  |  |
Liquidation preference | $ 325,000,000 |  | $ 325,000,000 |  |

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