XML 152 R118.htm IDEA: XBRL DOCUMENT
v3.19.3.a.u2

Commitments and Contingencies (Schedule of Estimated Losses) (Details) - USD ($) $ in Millions | 3 Months Ended | 12 Months Ended | 24 Months Ended
--- | --- | --- | ---
Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2019
Loss Contingency Accrual [Roll Forward] |  |  |  |  |
Beginning balance |  |  | $ 4,669 |  |
Ending balance | $ 4,568 | $ 4,669 | 4,568 | $ 4,669 | $ 4,568
Charge for wildfire-related claims | 4,568 | 4,669 | 4,669 | 4,669 | 4,568
2017/2018 Wildfire/Mudslide Events |  |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 4,669 |  |
Accrued losses |  |  | 232 |  |
Payments |  |  | (360) |  |
Ending balance | 4,541 | 4,669 | 4,541 | 4,669 | 4,541
Charge for wildfire-related claims | 4,541 | 4,669 | 4,541 | 4,669 | 4,541
SCE |  |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 4,669 |  |
Ending balance | 4,568 | 4,669 | 4,568 | 4,669 | 4,568
Charge for wildfire-related claims | 4,568 | 4,669 | 4,669 | 4,669 | 4,568
SCE | 2017/2018 Wildfire/Mudslide Events |  |  |  |  |
Loss Contingency Accrual [Roll Forward] |  |  |  |  |
Beginning balance |  |  | 4,700 |  |
Accrued losses | 232 | 2,500 | 232 | 4,669 | 4,900
Payments | (360) |  | (360) |  |
Ending balance | 4,500 | 4,700 | 4,500 | 4,700 | 4,500
Charge for wildfire-related claims | $ 4,500 | $ 4,700 | 4,500 | 4,700 | $ 4,500
Expected insurance recoveries |  |  | 0 | (2,000) |
Expected revenue from FERC customers |  |  | (14) | (135) |
Total pre-tax charge |  |  | 218 | 2,534 |
Income tax benefit |  |  | (61) | (709) |
Total after-tax charge |  |  | $ 157 | $ 1,825 |

X
- Definition Loss Contingency Accrual, Provision, Tax + References No definition available. + Details
Name: | eix_LossContingencyAccrualProvisionTax
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loss Contingency Accrual, Provision, after Tax + References No definition available. + Details
Name: | eix_LossContingencyAccrualProvisionafterTax
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loss Contingency Accrual, Recovery from Rate Payers + References No definition available. + Details
Name: | eix_LossContingencyAccrualRecoveryfromRatePayers
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Loss Contingency, Estimated Recovery from Electric Rates + References No definition available. + Details
Name: | eix_LossContingencyEstimatedRecoveryfromElectricRates
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Amount of loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualAtCarryingValue
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of increase (decrease) in loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualCarryingValuePeriodIncreaseDecrease
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of cash outflow reducing loss contingency liability. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualPayments
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Amount charged against operating income increasing loss contingency liability, after adjustments to reduce previously estimated charges. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 450 -SubTopic 20 -Section 50 -Paragraph 1 -URI http://asc.fasb.org/extlink&oid=118942415&loc=d3e14326-108349 + Details
Name: | us-gaap_LossContingencyAccrualProvision
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition A roll forward is a reconciliation of a concept from the beginning of a period to the end of a period. + References No definition available. + Details
Name: | us-gaap_LossContingencyAccrualRollForward
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | us-gaap_LossContingenciesByNatureOfContingencyAxis=eix_WildfireMudslide20172018EventsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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