XML 155 R134.htm IDEA: XBRL DOCUMENT
v3.24.0.1

Schedule I - Condensed Financial Information of Parent (Notes) (Details) $ / shares in Units, $ in Millions | 1 Months Ended | 12 Months Ended |
--- | --- | --- | ---
Dec. 31, 2023 USD ($) $ / shares shares | Nov. 30, 2023 USD ($) shares | Oct. 31, 2023 $ / shares | Dec. 31, 2023 USD ($) $ / shares shares | Dec. 31, 2022 USD ($) shares | Dec. 31, 2021 USD ($) | Dec. 31, 2019 | Dec. 31, 2018 USD ($) | May 31, 2023 USD ($)
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Commitment | $ 4,850.0 |  |  | $ 4,850.0 |  |  |  |  |
Outstanding borrowings | 1,804.0 |  |  | 1,804.0 |  |  |  |  |
Amount available | 3,017.0 |  |  | $ 3,017.0 |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Gain on shares acquired | $ 16.0 |  |  |  |  |  |  |  |
Redemption amount (in dollars per share) | $ / shares | $ 1,000 |  |  | $ 1,000 |  |  |  |  |
Redemption amount following change in criteria (in dollars per share) | $ / shares | $ 1,020 |  |  | $ 1,020 |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Interest expense from loans due to affiliates |  |  |  | $ 1,612.0 | $ 1,169.0 | $ 925.0 |  |  |
Other current liabilities | $ 1,751.0 |  |  | 1,751.0 | 1,601.0 |  |  |  |
Other deferred credits and other long-term liabilities | $ 3,258.0 |  |  | $ 3,258.0 | $ 2,988.0 |  |  |  |
SCE |  |  |  |  |  |  |  |  |
Basis of Presentation |  |  |  |  |  |  |  |  |
Weighted-average equity component authorization (as a percent) |  |  |  | 52.00% |  |  | 48.00% | 45.20% |
Weighted-average common equity component authorization period |  |  |  |  |  |  |  | 37 months |
Wildfire related charge incurred after tax |  |  |  |  |  |  |  | $ 1,800.0 |
Spot rate equity ratio |  |  |  |  |  |  |  | 47.70% |
Waiver threshold percent |  |  |  |  |  |  |  | 47.70% |
Weighted-average common equity component of total capitalization percent |  |  |  |  |  |  |  | 48.70% |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Covenant debt to total capitalization ratio | 0.65 |  |  | 0.65 |  |  |  |  |
Actual debt to capitalization ratio | 0.56 |  |  | 0.56 |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Shares repurchased | shares |  |  |  | 0 | 0 |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Interest expense from loans due to affiliates |  |  |  | $ 1,356.0 | $ 1,005.0 | 791.0 |  |  |
Other current liabilities | $ 1,713.0 |  |  | 1,713.0 | 1,578.0 |  |  |  |
Other deferred credits and other long-term liabilities | 3,206.0 |  |  | 3,206.0 | $ 2,919.0 |  |  |  |
Multi-year credit facilities | SCE |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Commitment | 3,350.0 |  |  | 3,350.0 |  |  |  |  |
Outstanding borrowings | 1,558.0 |  |  | 1,558.0 |  |  |  |  |
Amount available | 1,763.0 |  |  | 1,763.0 |  |  |  |  |
Contingent maximum available borrowing | $ 4,000.0 |  |  | $ 4,000.0 |  |  |  |  |
Multi-year credit facilities | SOFR | SCE |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Variable rate on debt (as a percent) |  |  |  | 1.08% |  |  |  |  |
Preferred stock |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares | $ 1,000 |  |  | $ 1,000 |  |  |  |  |
Preferred stock | SCE |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Preferred stock, shares outstanding | shares | 0 |  |  | 0 | 0 |  |  |  |
Series A |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, (as a percent) |  |  |  | 5.375% |  |  |  |  |
Shares repurchased | shares | 29,186 | 61,497 |  |  |  |  |  |  |
Preferred stock current redemption amount | $ 28.0 | $ 57.0 |  | $ 28.0 |  |  |  |  |
Preferred stock, shares outstanding | shares | 1,159,317 |  |  | 1,159,317 | 1,250,000 |  |  |  |
Series B |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, (as a percent) |  |  |  | 5.00% |  |  |  |  |
Shares repurchased | shares | 133,323 | 84,223 |  |  |  |  |  |  |
Preferred stock current redemption amount | $ 127.0 | $ 76.0 |  | $ 127.0 |  |  |  |  |
Preferred stock, shares outstanding | shares | 532,454 |  |  | 532,454 | 750,000 |  |  |  |
At-the-market Program (ATM) |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Aggregate sale price | $ 500.0 |  |  | $ 500.0 |  |  |  |  |
Stock compensation awards |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 1,151,964 | 1,253,049 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 58.0 | $ 57.0 |  |  |  |
In lieu of dividend payment |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 259,109 | 273,642 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 18.0 | $ 18.0 |  |  |  |
401(K) |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 144,200 | 157,000 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 10.0 | $ 10.0 |  |  |  |
Voluntary Cash Purchase |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 105,218 | 109,750 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 7.0 | $ 7.0 |  |  |  |
Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 55,923 | 36,912 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 4.0 | $ 2.0 |  |  |  |
Edison International |  |  |  |  |  |  |  |  |
Basis of Presentation |  |  |  |  |  |  |  |  |
Cash dividends received from consolidated subsidiaries |  |  |  | $ 1,400.0 | 1,300.0 | 975.0 |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Covenant debt to total capitalization ratio | 0.70 |  |  | 0.70 |  |  |  |  |
Actual debt to capitalization ratio | 0.63 |  |  | 0.63 |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Gain on shares acquired | $ 16.0 |  |  |  |  |  |  |  |
Redemption amount (in dollars per share) | $ / shares | $ 1,000 |  |  | $ 1,000 |  |  |  |  |
Redemption amount following change in criteria (in dollars per share) | $ / shares | $ 1,020 |  |  | $ 1,020 |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Other current liabilities | $ 598.0 |  |  | $ 598.0 | 575.0 |  |  |  |
Other deferred credits and other long-term liabilities | 362.0 |  |  | 362.0 | 394.0 |  |  |  |
Edison International | Related Party |  |  |  |  |  |  |  |  |
Related Party Transactions |  |  |  |  |  |  |  |  |
Expenses from services provided by SCE |  |  |  | 2.0 | 2.0 | 2.0 |  |  |
Interest expense from loans due to affiliates |  |  |  | 2.0 | 3.0 | $ 5.0 |  |  |
Prepaid insurance | 400.0 |  |  | 400.0 | 389.0 |  |  |  |
Other current liabilities | 185.0 |  |  | 185.0 | 166.0 |  |  |  |
Long-term insurance receivables from affiliates |  |  |  |  | 8.0 |  |  |  |
Other deferred credits and other long-term liabilities | 112.0 |  |  | 112.0 | $ 130.0 |  |  |  |
Edison International | 3.55% Senior note due 2024 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 500.0 |  |  | $ 500.0 |  |  |  |  |
Interest rate on debt (as a percent) | 3.55% |  |  | 3.55% |  |  |  |  |
Edison International | 4.95% Senior notes due 2025 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 400.0 |  |  | $ 400.0 |  |  |  |  |
Interest rate on debt (as a percent) | 4.95% |  |  | 4.95% |  |  |  |  |
Edison International | 4.70% Senior notes due 2025 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 400.0 |  |  | $ 400.0 |  |  |  |  |
Interest rate on debt (as a percent) | 4.70% |  |  | 4.70% |  |  |  |  |
Edison International | 5.75% Senior notes due 2027 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 600.0 |  |  | $ 600.0 |  |  |  |  |
Interest rate on debt (as a percent) | 5.75% |  |  | 5.75% |  |  |  |  |
Edison International | 4.125% Senior notes due 2028 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 550.0 |  |  | $ 550.0 |  |  |  |  |
Interest rate on debt (as a percent) | 4.125% |  |  | 4.125% |  |  |  |  |
Edison International | 5.25% Senior Notes due 2028 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 600.0 |  |  | $ 600.0 |  |  |  |  |
Interest rate on debt (as a percent) | 5.25% |  |  | 5.25% |  |  |  |  |
Edison International | 6.95% senior notes due in 2029 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 550.0 |  |  | $ 550.0 |  |  |  |  |
Interest rate on debt (as a percent) | 6.95% |  |  | 6.95% |  |  |  |  |
Edison International | 8.125% Junior subordinated notes due 2053 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 500.0 |  |  | $ 500.0 |  |  |  |  |
Interest rate on debt (as a percent) | 8.125% |  |  | 8.125% |  |  |  |  |
Edison International | 7.875% junior subordinated notes due 2054 |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Long-term debt | $ 450.0 |  |  | $ 450.0 |  |  |  |  |
Interest rate on debt (as a percent) | 7.875% |  |  | 7.875% |  |  |  |  |
Edison International | Multi-year credit facilities |  |  |  |  |  |  |  |  |
Debt and Credit Agreements |  |  |  |  |  |  |  |  |
Commitment | $ 1,500.0 |  |  | $ 1,500.0 |  |  |  |  |
Outstanding borrowings | 246.0 |  |  | 246.0 |  |  |  |  |
Amount available | $ 1,254.0 |  |  | $ 1,254.0 |  |  |  |  |
Contingent maximum available borrowing |  |  |  |  |  |  |  |  | $ 2,000.0
Edison International | Preferred stock |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Liquidation value (in dollars per share) | $ / shares | $ 1,000 |  |  | $ 1,000 |  |  |  |  |
Edison International | Series A |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, (as a percent) |  |  | 5.375% |  |  |  |  |  |
Redemption price (in dollars per share) | $ / shares | $ 971 |  | $ 925 | $ 971 |  |  |  |  |
Shares repurchased | shares | 29,186 | 61,497 |  |  |  |  |  |  |
Preferred stock current redemption amount | $ 28.0 | $ 57.0 |  | $ 28.0 |  |  |  |  |
Preferred stock, shares outstanding | shares | 1,159,317 |  |  | 1,159,317 |  |  |  |  |
Edison International | Series B |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Preferred stock, dividend rate, (as a percent) |  |  | 5.00% |  |  |  |  |  |
Redemption price (in dollars per share) | $ / shares | $ 955 |  | $ 904 | $ 955 |  |  |  |  |
Shares repurchased | shares | 133,323 | 84,223 |  |  |  |  |  |  |
Preferred stock current redemption amount | $ 127.0 | $ 76.0 |  | $ 127.0 |  |  |  |  |
Preferred stock, shares outstanding | shares | 532,454 |  |  | 532,454 |  |  |  |  |
Edison International | At-the-market Program (ATM) |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Aggregate sale price | $ 500.0 |  |  | $ 500.0 |  |  |  |  |
Edison International | Stock compensation awards |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 1,151,964 | 1,253,049 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 58.0 | $ 57.0 |  |  |  |
Edison International | In lieu of dividend payment |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 259,109 | 273,642 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 18.0 | $ 18.0 |  |  |  |
Edison International | 401(K) |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 144,200 | 157,000 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 10.0 | $ 10.0 |  |  |  |
Edison International | Voluntary Cash Purchase |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 105,218 | 109,750 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 7.0 | $ 7.0 |  |  |  |
Edison International | Employee Stock Purchase Plan |  |  |  |  |  |  |  |  |
Equity |  |  |  |  |  |  |  |  |
Stock issued (in shares) | shares |  |  |  | 55,923 | 36,912 |  |  |  |
Proceeds received, net of offering costs |  |  |  | $ 4.0 | $ 2.0 |  |  |  |

X
- Definition This element represents disclosure of the total aggregate cash dividends received from the subsidiary company. + References No definition available. + Details
Name: | eix_CashDividendsReceivedFromSubsidiaryCompany
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Debt Instrument, Covenant, Ratio of Debt to Total Capitalization + References No definition available. + Details
Name: | eix_DebtInstrumentCovenantRatioofDebttoTotalCapitalization
Namespace Prefix: | eix_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

X
- Definition The aggregate borrowing capacity under the credit facility, consisting of the maximum borrowing capacity plus the contingent increase, if any one or more of the existing banks or new banks agree to provide such increased commitment amount. + References No definition available. + Details
Name: | eix_LineOfCreditFacilityContingentIncreaseAggregateMaximumBorrowingCapacity
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The redemption per share amount of redeemable preferred stock following any change in the criteria rating agencies use to assign equity credit to securities. + References No definition available. + Details
Name: | eix_PreferredStockRedemptionAmountChangeInCriteriaPerShare
Namespace Prefix: | eix_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition he redemption per share amount of redeemable preferred stock. + References No definition available. + Details
Name: | eix_PreferredStockRedemptionAmountPerShare
Namespace Prefix: | eix_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Share Issuance Agreement, Authorized Amount + References No definition available. + Details
Name: | eix_ShareIssuanceAgreementAuthorizedAmount
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Spot Rate Common Equity Component, Percentage of Total Capitalization + References No definition available. + Details
Name: | eix_SpotRateCommonEquityComponentPercentageofTotalCapitalization
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Waiver Threshold, Common Equity Component, Percentage of Total Capitalization + References No definition available. + Details
Name: | eix_WaiverThresholdCommonEquityComponentPercentageofTotalCapitalization
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Weighted Average Common Equity Component Authorization, Remaining over Number of Months + References No definition available. + Details
Name: | eix_WeightedAverageCommonEquityComponentAuthorizationRemainingoverNumberofMonths
Namespace Prefix: | eix_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the authorized percentage of weighted-average common equity component of total capitalization required to distribute the dividend. + References No definition available. + Details
Name: | eix_WeightedAverageCommonEquityComponentMinimumPercentageAuthorizationSetByCPUC
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition This element represents the percentage of weighted-average common equity component of total capitalization required to distribute the dividend. + References No definition available. + Details
Name: | eix_WeightedAverageCommonEquityComponentPercentageOfTotalCapitalization
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Wildfire Related Charge Incurred After Tax + References No definition available. + Details
Name: | eix_WildfireRelatedChargeIncurredAfterTax
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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

X
- Definition Percentage points added to the reference rate to compute the variable rate on the debt instrument. + References No definition available. + Details
Name: | us-gaap_DebtInstrumentBasisSpreadOnVariableRate1
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount, before unamortized (discount) premium and debt issuance costs, of long-term debt. Includes, but is not limited to, notes payable, bonds payable, commercial loans, mortgage loans, convertible debt, subordinated debt and other types of debt. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-4 + Details
Name: | us-gaap_DebtInstrumentCarryingAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Contractual interest rate for funds borrowed, under the debt agreement. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 470 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1B -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481139/470-20-50-1B Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.22(a)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_DebtInstrumentInterestRateStatedPercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

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

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

X
- Definition Amount of the cost of borrowed funds accounted for as interest expense. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 946 -SubTopic 830 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480167/946-830-55-10 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section 45 -Paragraph 3 -Subparagraph (i) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483581/946-220-45-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-07(3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 280 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 22 -Subparagraph (d) -Publisher FASB -URI https://asc.fasb.org//1943274/2147482810/280-10-50-22 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 835 -SubTopic 30 -Section 45 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147482925/835-30-45-3 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-04.9) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483589/942-220-S99-1 Reference 7: http://www.xbrl.org/2003/role/disclosureRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (210.5-03(11)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 Reference 8: http://www.xbrl.org/2003/role/disclosureRef -Topic 835 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483013/835-20-50-1 + Details
Name: | us-gaap_InterestExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The carrying value as of the balance sheet date of the current and noncurrent portions of long-term obligations drawn from a line of credit, which is a bank's commitment to make loans up to a specific amount. Examples of items that might be included in the application of this element may consist of letters of credit, standby letters of credit, and revolving credit arrangements, under which borrowings can be made up to a maximum amount as of any point in time conditional on satisfaction of specified terms before, as of and after the date of drawdowns on the line. Includes short-term obligations that would normally be classified as current liabilities but for which (a) postbalance sheet date issuance of a long term obligation to refinance the short term obligation on a long term basis, or (b) the enterprise has entered into a financing agreement that clearly permits the enterprise to refinance the short-term obligation on a long term basis and the following conditions are met (1) the agreement does not expire within 1 year and is not cancelable by the lender except for violation of an objectively determinable provision, (2) no violation exists at the BS date, and (3) the lender has entered into the financing agreement is expected to be financially capable of honoring the agreement. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(22)) -SubTopic 10 -Topic 210 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 944 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.7-03(a)(16)(a)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479440/944-210-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 942 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.9-03(16)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479853/942-210-S99-1 + Details
Name: | us-gaap_LineOfCredit
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Maximum borrowing capacity under the credit facility without consideration of any current restrictions on the amount that could be borrowed or the amounts currently outstanding under the facility. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityMaximumBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of borrowing capacity currently available under the credit facility (current borrowing capacity less the amount of borrowings outstanding). + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.19(b),22(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_LineOfCreditFacilityRemainingBorrowingCapacity
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 852 -SubTopic 10 -Name Accounting Standards Codification -Section 55 -Paragraph 10 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481372/852-10-55-10 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.20) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_OtherLiabilitiesCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.24) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_OtherLiabilitiesNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Amount, after allowance for credit loss, of receivable classified as other and noncurrent. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(17)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_OtherReceivableAfterAllowanceForCreditLossNoncurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Amount, after allowance, of receivables classified as other, due within one year or the operating cycle, if longer. + References No definition available. + Details
Name: | us-gaap_OtherReceivablesNetCurrent
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The percentage rate used to calculate dividend payments on preferred stock. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-13 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.12-12A(Column A)(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.12-12(Column A)(Footnote 4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.12-12B(Column A)(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-3 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 320 -Name Accounting Standards Codification -Section S99 -Paragraph 6 -Subparagraph (SX 210.12-14(Column A)(Footnote 3)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480032/946-320-S99-6 + Details
Name: | us-gaap_PreferredStockDividendRatePercentage
Namespace Prefix: | us-gaap_
Data Type: | dtr-types: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://www.xbrl.org/2009/role/commonPracticeRef -Topic 235 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.4-08(d)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480678/235-10-S99-1 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 Reference 4: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 4 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-4 Reference 5: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 13 -Subparagraph (h) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-13 + Details
Name: | us-gaap_PreferredStockLiquidationPreference
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition The redemption (or callable) amount of currently redeemable preferred stock. Includes amounts representing dividends not currently declared or paid but which will be payable under the redemption features or for which ultimate payment is solely within the control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-11 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 210 -SubTopic 10 -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02.27(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_PreferredStockRedemptionAmount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The excess of (1) the carrying amount of the preferred stock in the registrant's balance sheet over (2) the fair value of the consideration transferred to the holders of the preferred stock, during the accounting period, which will be added to net earnings to arrive at net earnings available to common shareholders in the calculation of earnings per share. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 260 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480408/260-10-S99-2 + Details
Name: | us-gaap_PreferredStockRedemptionDiscount
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The price per share at which the preferred stock of an entity that has priority over common stock in the distribution of dividends and in the event of liquidation of the entity is redeemed or may be called at. The redemption features of this preferred stock are solely within the control of the issuer. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 3 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-3 Reference 2: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 5 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-5 Reference 3: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Topic 505 -SubTopic 10 -Section 50 -Paragraph 11 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-11 + Details
Name: | us-gaap_PreferredStockRedemptionPricePerShare
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:perShareItemType
Balance Type: | na
Period Type: | instant

X
- Definition Aggregate share number for all nonredeemable preferred stock (or preferred stock redeemable solely at the option of the issuer) held by stockholders. Does not include preferred shares that have been repurchased. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.6-05(4)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-2 Reference 2: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(16)(a)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479617/946-210-S99-1 Reference 4: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(7)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_PreferredStockSharesOutstanding
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Indebtedness divided by net capital. + References No definition available. + Details
Name: | us-gaap_RatioOfIndebtednessToNetCapital1
Namespace Prefix: | us-gaap_
Data Type: | xbrli:pureItemType
Balance Type: | na
Period Type: | instant

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

X
- Definition Cash received on stock transaction after deduction of issuance costs. + References No definition available. + Details
Name: | us-gaap_SaleOfStockConsiderationReceivedOnTransaction
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The aggregate total costs related to selling a firm's product and services, as well as all other general and administrative expenses. Direct selling expenses (for example, credit, warranty, and advertising) are expenses that can be directly linked to the sale of specific products. Indirect selling expenses are expenses that cannot be directly linked to the sale of specific products, for example telephone expenses, Internet, and postal charges. General and administrative expenses include salaries of non-sales personnel, rent, utilities, communication, etc. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 220 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 2 -Subparagraph (SX 210.5-03.4) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483621/220-10-S99-2 + Details
Name: | us-gaap_SellingGeneralAndAdministrativeExpense
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Number of new stock issued during the period. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (a) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481004/946-505-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(1)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479886/946-10-S99-3 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_StockIssuedDuringPeriodSharesNewIssues
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | duration

X
- Definition Number of shares that have been repurchased during the period and have not been retired and are not held in treasury. Some state laws may govern the circumstances under which an entity may acquire its own stock and prescribe the accounting treatment therefore. This element is used when state law does not recognize treasury stock. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Name Accounting Standards Codification -Section 50 -Paragraph 2 -SubTopic 10 -Topic 505 -Publisher FASB -URI https://asc.fasb.org//1943274/2147481112/505-10-50-2 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 505 -Name Accounting Standards Codification -Section 50 -Paragraph 2 -Subparagraph (c) -Publisher FASB -URI https://asc.fasb.org//1943274/2147481004/946-505-50-2 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 220 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-09(4)(b)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147483575/946-220-S99-3 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 3 -Subparagraph (SX 210.6-03(i)(2)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147479886/946-10-S99-3 Reference 5: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(28)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 Reference 6: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 505 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.3-04) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480008/505-10-S99-1 Reference 7: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 210 -SubTopic 10 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.5-02(29)) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480566/210-10-S99-1 + Details
Name: | us-gaap_StockRepurchasedDuringPeriodShares
Namespace Prefix: | us-gaap_
Data Type: | xbrli:sharesItemType
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_DebtInstrumentAxis=eix_CreditFacilityMultiYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_VariableRateAxis=us-gaap_SecuredOvernightFinancingRateSofrOvernightIndexSwapRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_AtthemarketProgramMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_InternalProgramsStockCompensationAwardsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_InternalProgramsIssuedinLieuofDividendPaymentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_InternalPrograms401KMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_InternalProgramsVoluntaryCashPurchaseMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_SubsidiarySaleOfStockAxis=eix_InternalProgramsEmployeeStockPurchasePlanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_ConsolidatedEntitiesAxis=srt_ParentCompanyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_RelatedPartyTransactionsByRelatedPartyAxis=us-gaap_RelatedPartyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_ThreePointFiveFiveZeroPercentSeniorNotesIssuedNovember2019DueTwoThousandTwentyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_FourPointNineFiveSeniorNotesDueTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_FourPointSevenZeroSeniorNotesDueTwoThousandTwentyFiveMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_FivePointSevenFivePercentSeniorNotesIssuedJune2019DueTwoThousandTwentySevenMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_FourPointOneTwoFiveSeniorNotesDueTwoThousandTwentyEightMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_SeniorNotes5.25PercentDue2028Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_SixPointNinetyFivePercentageSeniorNotesDueInTwoThousandTwentyNineMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_JuniorSubordinatedNotesDue2053Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DebtInstrumentAxis=eix_SevenPointEightSeventyFivePercentageJuniorSubordinatedNotesDueInTwoThousandFiftyFourMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |