XML 84 R66.htm IDEA: XBRL DOCUMENT
v3.10.0.1

Variable Interest Entities (Variable Interest in VIEs that are not Consolidated) (Details) | 1 Months Ended | 12 Months Ended
--- | --- | ---
Jul. 31, 2017 USD ($) | Dec. 31, 2018 USD ($) $ / shares MW | Dec. 31, 2017 USD ($) $ / shares MW | Dec. 31, 2016 USD ($) | Dec. 31, 2015 | Dec. 31, 2014 | Dec. 31, 2013 | Dec. 31, 2012 USD ($)
Unconsolidated Trust |  |  |  |  |  |  |  |
Stock redeemed |  |  | $ 475,000,000 | $ 125,000,000 |  |  |  |
SCE |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Stock redeemed |  |  | $ 475,000,000 | $ 125,000,000 |  |  |  |
SCE | Series G Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.10% |  |  |  |  |  |
SCE | Series H Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.75% |  |  |  |  |  |
SCE | Series J Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.375% |  |  |  |  |  |
SCE | Series K Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.45% |  |  |  |  |  |
SCE | Series L Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.00% |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Power Purchase Contracts |  |  |  |  |  |  |  |
Details of projects or entities |  |  |  |  |  |  |  |
Power generating capacity for majority interest (in megawatts) | MW |  | 3,602 | 4,898 |  |  |  |  |
Payments to unconsolidated VIEs for power purchase contracts |  | $ 762,000,000 | $ 767,000,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust I | Trust Securities |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  |  |  |  |  |  |  | 5.625%
Liquidation preference | $ 475,000,000 |  |  |  |  |  |  | $ 475,000,000
Common stock |  | 10,000 |  |  |  |  |  |
Stock redeemed | $ 10,000 |  |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust I | Series F Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Liquidation preference |  |  |  |  |  |  |  | 475,000,000
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust II |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Common stock |  | 10,000 | 10,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust II | Trust Securities |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  |  |  |  |  |  | 5.10% |
Liquidation preference |  | $ 400,000,000 | $ 400,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 25 | $ 25 |  |  |  |  |
Common stock |  | $ 10,000 |  |  |  |  |  | $ 10,000
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust II | Series F Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 2,500 |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust II | Series G Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.10% |  |  |  |  |  |
Liquidation preference |  | $ 400,000,000 | $ 400,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 2,500 |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust III |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Common stock |  | $ 10,000 | 10,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust III | Trust Securities |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  |  |  |  |  | 5.75% |  |
Liquidation preference |  | $ 275,000,000 | $ 275,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 25 | $ 25 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust III | Series H Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.75% |  |  |  |  |  |
Liquidation preference |  | $ 275,000,000 | $ 275,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 2,500 |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust IV |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Common stock |  | $ 10,000 | 10,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | 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 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust IV | 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 |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust V |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Common stock |  | $ 10,000 | 10,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust V | Trust Securities |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  |  |  | 5.45% |  |  |  |
Liquidation preference |  | $ 300,000,000 | $ 300,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 25 | $ 25 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust V | Series K Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.45% |  |  |  |  |  |
Liquidation preference |  | $ 300,000,000 | $ 300,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 2,500 |  |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust VI |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Common stock |  | $ 10,000 | $ 10,000 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust VI | Trust Securities |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  |  | 5.00% |  |  |  |  |
Liquidation preference |  | $ 475,000,000 | $ 475,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 25 | $ 25 |  |  |  |  |
SCE | Variable Interest Entity, Not Primary Beneficiary | Trust VI | Series L Preferred Stock |  |  |  |  |  |  |  |
Unconsolidated Trust |  |  |  |  |  |  |  |
Security dividend rate, (as a percent) |  | 5.00% |  |  |  |  |  |
Liquidation preference |  | $ 475,000,000 | $ 475,000,000 |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares |  | $ 2,500 |  |  |  |  |  |

X
- Definition -- None. No documentation exists for this element. -- + References No definition available. + Details
Name: | eix_DisclosureVariableInterestEntityAbstract
Namespace Prefix: | eix_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payments for electricity purchased during the reporting period under power purchase contracts with unconsolidated VIEs. + References No definition available. + Details
Name: | eix_PaymentsToUnconsolidatedViesPowerPurchaseContracts
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Power generating capacity of the project owned and/or controlled by the entity. + References No definition available. + Details
Name: | eix_PowerGeneratingCapacityOfProjectsOwnedControlled
Namespace Prefix: | eix_
Data Type: | num:powerItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate par or stated value of issued nonredeemable common stock (or common stock redeemable solely at the option of the issuer). This item includes treasury stock repurchased by the entity. Note: elements for number of nonredeemable common shares, par value and other disclosure concepts are in another section within stockholders' equity. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 + Details
Name: | us-gaap_CommonStockValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References No definition available. + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The per share liquidation preference (or restrictions) of nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) that has a preference in involuntary liquidation considerably in excess of the par or stated value of the shares. The liquidation preference is the difference between the preference in liquidation and the par or stated values of the share. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21475-112644 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08.(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -URI http://asc.fasb.org/extlink&oid=6877327&loc=d3e13212-122682 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 235 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)(1)) -URI http://asc.fasb.org/extlink&oid=26873400&loc=d3e23780-122690 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21484-112644 + Details
Name: | us-gaap_PreferredStockLiquidationPreference
Namespace Prefix: | us-gaap_
Data Type: | num:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Value of the difference between preference in liquidation and the par or stated values of the preferred shares. + References No definition available. + Details
Name: | us-gaap_PreferredStockLiquidationPreferenceValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Equity impact of the value of stock bought back by the entity at the exercise price or redemption price. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 2 -URI http://asc.fasb.org/extlink&oid=109259400&loc=d3e21463-112644 + Details
Name: | us-gaap_StockRedeemedOrCalledDuringPeriodValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | us-gaap_TrustsAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | dei_LegalEntityAxis=eix_SouthernCaliforniaEdisonCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesGPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesHPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=eix_SeriesJPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=eix_SeriesKPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=eix_SeriesLPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableInterestEntitiesByClassificationOfEntityAxis=us-gaap_VariableInterestEntityNotPrimaryBeneficiaryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_ScePowerPurchaseContractsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SouthernCaliforniaEdisonTrustIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=eix_TrustSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_StatementClassOfStockAxis=us-gaap_SeriesFPreferredStockMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SouthernCaliforniaEdisonTrustIiMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SouthernCaliforniaEdisonTrustIIIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SCETrustIVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SCETrustVMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_VariableInterestEntitiesByNameOfEntityAxis=eix_SCETrustVIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |