XML 118 R93.htm IDEA: XBRL DOCUMENT
v3.25.0.1

Compensation and Benefit Plans - Pension Assets Fair Value (Details) - Pension Plan - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Pension and Other Postretirement Benefits |  |  |
Total | $ 3,682 | $ 3,574 |
Receivables and payables, net | (74) | 35 |
Net plan assets available for benefits | $ 3,608 | $ 3,609 | $ 3,462
Publicly traded equity investments located in the US (percent) | 64.00% | 62.00% |
Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 644 | $ 654 |
Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 1,498 | 1,460 |
NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 1,540 | 1,460 |
U.S. government and agency securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 597 | 608 |
U.S. government and agency securities | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 244 | 256 |
U.S. government and agency securities | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 353 | 352 |
U.S. government and agency securities | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Corporate stocks |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 152 | $ 181 |
Corporate stocks | Russell Indexes |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 33.00% | 36.00% |
Corporate stocks | MSCI |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 67.00% | 64.00% |
Corporate stocks | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 148 | $ 176 |
Corporate stocks | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 4 | 5 |
Corporate stocks | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Corporate bonds |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 1,084 | 1,057 |
Corporate bonds | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 0 | $ 0 |
Actual plan asset allocations, percentage | 56.00% | 57.00% |
Corporate bonds | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 1,084 | $ 1,057 |
Corporate bonds | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Common/collective funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 652 | $ 584 |
Common/collective funds | Standard and Poor's 500 |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 38.00% | 41.00% |
Common/collective funds | MSCI all country world index exUS |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 38.00% | 40.00% |
Common/collective funds | Non-index U.S. equity fund |  |  |
Pension and Other Postretirement Benefits |  |  |
Performance percentage benchmark, percentage | 19.00% | 16.00% |
Common/collective funds | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 0 | $ 0 |
Common/collective funds | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Common/collective funds | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 652 | 584 |
Partnerships/joint ventures |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 680 | 657 |
Actual plan asset allocations, percentage | 16.00% |  |
Partnerships/joint ventures | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 0 | 0 |
Partnerships/joint ventures | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Partnerships/joint ventures | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 680 | 657 |
Other investment entities |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 58 | 58 |
Other investment entities | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Other investment entities | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Other investment entities | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 58 | 58 |
Registered investment companies |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 380 | 365 |
Registered investment companies | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 238 | 212 |
Registered investment companies | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Registered investment companies | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 142 | 153 |
Interest-bearing cash |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 14 | 10 |
Interest-bearing cash | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 14 | 10 |
Interest-bearing cash | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Interest-bearing cash | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Other |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 65 | 54 |
Other | Level 1 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 0 | 0 |
Other | Level 2 |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 57 | 46 |
Other | NAV |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | 8 | 8 |
Collateralized mortgage obligations and other asset backed securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Total | $ 77 | $ 78 |
Private equity and venture capital funds including branded consumer products, clean and information technology and healthcare |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 69.00% | 74.00% |
Asset backed securities including distressed mortgages |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage |  | 17.00% |
Broad range of financial assets in all global markets |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 5.00% | 5.00% |
Fixed Income |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 9.00% | 0.00% |
Domestic mortgage backed securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 70.00% | 68.00% |
High yield debt securities |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 30.00% | 32.00% |
Fixed Income Funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 10.00% | 13.00% |
Equity Funds |  |  |
Pension and Other Postretirement Benefits |  |  |
Actual plan asset allocations, percentage | 34.00% | 28.00% |
SCE |  |  |
Pension and Other Postretirement Benefits |  |  |
Net plan assets available for benefits | $ 3,416 | $ 3,415 | $ 3,275

X
- Definition The actual asset allocation of fair value of publicly traded equity investments. + References No definition available. + Details
Name: | eix_DefinedBenefitPlanAssetAllocationsOfAssetsPubliclyTradedEquityInvestments
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The total of the fair value of plan asset categories, excluding other category of plan assets, which primarily include receivables and payables, net. + References No definition available. + Details
Name: | eix_DefinedBenefitPlanFairValueOfPlanAssetsGross
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The fair value of other assets, which represent net of receivables and payables. + References No definition available. + Details
Name: | eix_DefinedBenefitPlanFairValueOfPlanAssetsReceivablesAndPayablesNet
Namespace Prefix: | eix_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Performance percentage benchmarked to indexes. + References No definition available. + Details
Name: | eix_PerformancePercentageBenchmark
Namespace Prefix: | eix_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References No definition available. + Details
Name: | us-gaap_DefinedBenefitPlanDisclosureLineItems
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Amount of asset segregated and restricted to provide benefit under defined benefit plan. Asset includes, but is not limited to, stock, bond, other investment, earning from investment, and contribution by employer and employee. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 55 -Paragraph 17 -Publisher FASB -URI https://asc.fasb.org/1943274/2147480482/715-20-55-17 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(02) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 4: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 5: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (b) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 6: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(ii) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 Reference 7: http://www.xbrl.org/2003/role/exampleRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(iv)(01) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanFairValueOfPlanAssets
Namespace Prefix: | us-gaap_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition Percentage of actual investment allocation to total plan assets. Includes, but is not limited to, percentage on weighted-average basis if more than one plan. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (d)(i) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_DefinedBenefitPlanWeightedAverageAssetAllocations
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | us-gaap_RetirementPlanTypeAxis=us-gaap_PensionPlansDefinedBenefitMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueInputsLevel2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_FairValueByFairValueHierarchyLevelAxis=us-gaap_FairValueMeasuredAtNetAssetValuePerShareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_USTreasuryAndGovernmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_DefinedBenefitPlanEquitySecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_DefinedBenefitPlanByIndexCategoriesAxis=eix_RussellIndexesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_DefinedBenefitPlanByIndexCategoriesAxis=eix_MSCIMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_CorporateBondSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_CommonCollectiveFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_DefinedBenefitPlanByIndexCategoriesAxis=eix_StandardAndPoors500Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_DefinedBenefitPlanByIndexCategoriesAxis=eix_MSCIAllCountryWorldIndexExUSMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | eix_DefinedBenefitPlanByIndexCategoriesAxis=eix_NonIndexU.S.EquityFundMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_PartnershipsJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_OtherInvestmentCompaniesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_HedgeFundsGlobalOpportunityMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_InterestBearingDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_OtherInvestmentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_CollateralizedMortgageObligationsAndOtherAssetBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_PrivateEquityAndVentureCapitalFundsIncludingBrandedConsumerProductsCleanAndInformationTechnologyAndHealthcareMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_AssetBackedSecuritiesIncludingDistressedMortgagesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_BroadRangeOfFinancialAssetsInAllGlobalMarketsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_DomesticMortgageBackedSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=eix_HighYieldDebtSecuritiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_FixedIncomeFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | us-gaap_DefinedBenefitPlanByPlanAssetCategoriesAxis=us-gaap_EquityFundsMember
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: |