Common and preferred stocks EBP, Separate Managed Funds, Common And Preferred Stock [Member] EBP, Separate Managed Funds, Common And Preferred Stock Entity tax identification number Entity Tax Identification Number Maximum Maximum [Member] Legal Entity [Axis] Legal Entity [Axis] Former employee, separated for reasons other than retirement, minimum age EBP, Former Employee, Separated For Reasons Other Than Retirement, Minimum Age EBP, Former Employee, Separated For Reasons Other Than Retirement, Minimum Age Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Mutual fund Mutual Fund [Member] T. Rowe Price T. Rowe Price [Member] T. Rowe Price Selling price EBP, Investment Sold, Excluding Plan Interest in Master Trust, Selling Price EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Pretax, maximum annual compensation to total compensation, percentage EBP, Participant Contribution, Pretax, Maximum Annual Compensation to Total Compensation, Percentage EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Jackson Square Partners Jackson Square Partners [Member] Jackson Square Partners Self-directed brokerage accounts EBP, Self-Directed Brokerage Account [Member] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Maximum borrowing, amount EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Receivable from brokers and other EBP, Brokers And Other, Receivable EBP, Brokers And Other, Receivable Minimum borrowing, amount EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount EBP, Fully Benefit-Responsive Investment Contract [Abstract] Primary residence, borrowing term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term EBP, Note Receivable From Participant, Account, Primary Residence, Maximum Borrowing Term Investments, at fair value Plan's investment EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Total separate managed funds EBP, Separate Managed Funds [Member] EBP, Separate Managed Funds Money market fund Money Market Funds [Member] Level 1 Fair Value, Inputs, Level 1 [Member] Number of Transactions EBP, Change in Net Asset Available for Benefit, Number Of Transactions EBP, Change in Net Asset Available for Benefit, Number Of Transactions Reconciliation of Net Assets Available for Plan Benefits and Reconciliation of Total Deductions EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] EBP, Investment, Fair Value and NAV [Abstract] Total assets EBP, Asset Assets EBP, Asset [Abstract] Investment funds EBP, Investment Funds [Member] EBP, Investment Funds Statistical Measurement [Axis] Statistical Measurement [Axis] Additions EBP, Change in Net Asset Available for Benefit, Increase [Abstract] EBP, Statement of Change in Net Asset Available for Benefit [Table] EBP, Statement of Change in Net Asset Available for Benefit [Table] Distributions to Participants EBP, Payment to Participant [Policy Text Block] Total liabilities EBP, Liability Amendment Flag Amendment Flag Participant and rollover contributions EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution Fees earned EBP, Investment, Fees Earned EBP, Investment, Fees Earned Less: Deemed distributions of participant loans EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Deemed Distribution Basis of Accounting EBP, Basis of Accounting [Policy Text Block] EBP, Schedule of Asset Held for Investment [Table] EBP, Schedule of Asset Held for Investment [Table] Interest rate EBP, Investment, Interest Rate EBP, Description of Plan and Accounting Change [Abstract] Receivables EBP, Receivable [Abstract] Schedule of Plan's Investments Measured at Fair Value and Fund Investments Valued at Net Asset Value per Share EBP, Investment, Fair Value and NAV [Table Text Block] EBP, Contribution [Abstract] Non-represented employees hired between December 31, 2017 and June 30, 2024 EBP, Employer Contribution, Hiring Period One [Member] EBP, Employer Contribution, Hiring Period One AJO Partners AJO Partners [Member] AJO Partners Jennison Jennison [Member] Jennison Investments [Domain] Investments [Domain] Investment Elections EBP, Investment Elections [Text Block] EBP, Investment Elections Use of Estimates EBP, Use of Estimate [Policy Text Block] EBP, Employer Contribution, Hiring Period [Axis] EBP, Employer Contribution, Hiring Period [Axis] EBP, Employer Contribution, Hiring Period Form 5500 Schedule H, Line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Less: Amounts allocated to withdrawing participants EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Allocation to Withdrawing Participant, Not yet Paid Employer contributions, net of forfeitures EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Less: Amounts allocated to withdrawing participants at December 31, 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Decrease from Allocation to Withdrawing Participant, Paid Minimum Minimum [Member] EBP, Schedule of Reportable Transaction [Abstract] Dividends receivable EBP, Investment Income, Receivable Investment Type [Axis] Investment Type [Axis] Interest income on notes receivable from participants EBP, Change in Net Asset Available for Benefit, Increase from Interest Income on Note Receivable from Participant Dodge & Cox Dodge & Cox [Member] Dodge & Cox EBP, Employer Contribution, Hiring Period [Domain] EBP, Employer Contribution, Hiring Period [Domain] EBP, Employer Contribution, Hiring Period [Domain] Total net contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Non-represented employees hired between December 31, 2017 and June 30, 2024 EBP, Employer Contribution, Hiring Period Two [Member] EBP, Employer Contribution, Hiring Period Two Net appreciation in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] EBP, Fixed Rate Contribution EBP, Fixed Rate Contribution [Member] EBP, Fixed Rate Contribution Plan number EBP, Plan Number EBP, Investment, Fair Value and NAV [Line Items] EBP, Investment, Fair Value and NAV [Line Items] Plan Description EBP, Description of Plan [Text Block] Current value of asset EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Current Value EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Change in Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Table] EBP, Statement of Net Asset Available for Benefit [Table] Form 5500 Schedule H, Line 4j - Schedule of Reportable Transactions EBP, Schedule of Reportable Transaction [Text Block] EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Recordkeeping fee EBP, Recordkeeping Fee EBP, Recordkeeping Fee Investment Options EBP, Investment Options [Text Block] EBP, Investment Options EBP, Employer, Common Stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Total additions EBP, Change in Net Asset Available for Benefit, Increase EBP, Schedule of Reportable Transaction [Table] EBP, Schedule of Reportable Transaction [Table] Other EBP, Separate Managed Funds, Other Investment [Member] EBP, Separate Managed Funds, Other Investment Investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment, Identifier [Axis] Investment, Identifier [Axis] Management fees EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Grand Total EBP, Asset Held for Investment Loomis Sayles Loomis Sayles [Member] Loomis Sayles EBP 002 EBP 002 [Member] EBP 002 Risks and Uncertainties EBP, Risk and Uncertainty [Policy Text Block] Document Information [Line Items] Document Information [Line Items] Net Appreciation (Depreciation) in Fair Value of Investments EBP, Net Appreciation (Depreciation) In Fair Value Of Investments [Policy Text Block] EBP, Net Appreciation (Depreciation) In Fair Value Of Investments Boston Partners Boston Partners [Member] Boston Partners EBP, Qualified Non-Elective Contributions, Non-Represented Employees EBP, Qualified Non-Elective Contributions, Non-Represented Employees EBP, Qualified Non-Elective Contributions, Non-Represented Employees EBP, Schedule of Reportable Transaction [Line Items] EBP, Schedule of Reportable Transaction [Line Items] Net gain or (loss) EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Realized Gain (Loss) on Investment Participant compensation matched, percentage EBP, Employer Contribution, Participant Compensation Matched, Percentage EBP, Statement of Change in Net Asset Available for Benefit [Abstract] Level 2 Fair Value, Inputs, Level 2 [Member] Mutual funds EBP, Separate Managed Funds, Mutual Fund [Member] EBP, Separate Managed Funds, Mutual Fund Cash and other short-term investments EBP, Separate Managed Funds, Cash And Other Short-Term Investments [Member] EBP, Separate Managed Funds, Cash And Other Short-Term Investments Interest income and other EBP, Change in Net Asset Available for Benefit, Increase from Interest Income And Other EBP, Change in Net Asset Available for Benefit, Increase from Interest Income And Other Employer common stock to total assets, percentage EBP, Investment, Employer, Common Stock, to Total Asset, Percentage Fixed income securities2 EBP, Separate Managed Funds, Fixed Income Investments [Member] EBP, Separate Managed Funds, Fixed Income Investments EBP, Contribution [Table] EBP, Contribution [Table] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Employer Contribution, Type [Domain] EBP, Tax Status [Table] EBP, Tax Status [Table] Net increase EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Related-Party Transactions EBP, Related Party and Party-in-Interest Transactions [Text Block] EBP, Related Party and Party-in-Interest Transactions [Abstract] EBP, Accounting Policy, Accounting Standard Update, and Change in Accounting Principle [Abstract] Total receivables EBP, Receivable Distributions to participants Distributions to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Dividends EBP, Change in Net Asset Available for Benefit, Increase from Dividend Income on Investment Dividends declared (in dollars per share) EBP, Common Stock, Dividends, Per Share, Declared EBP, Common Stock, Dividends, Per Share, Declared Total EBP, Asset Held for Investment, Investment, Excluding Plan Interest in Master Trust, Current Value Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Vesting period EBP, Employer Contribution Vesting Service Period Minimum Vesting service period for company contribution and/ or investment earning to the participant in Company Matching Contributions, Fixed Rate Contributions, Discretionary Profit-Sharing Contributions, Qualified Non-Elective Contributions, and Disability Contributions. Employee stock ownership plan, distributions EBP, Employee Stock Ownership Plan, Distributions EBP, Employee Stock Ownership Plan, Distributions EBP, Statement of Net Asset Available for Benefit [Abstract] EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Maximum vesting age EBP, Employer Contribution Maximum Vesting Age EBP, Employer Contribution Maximum Vesting Age EBP, Tax Status [Abstract] Edison International Stock Fund EBP, Employer, Common Stock Fund [Member] EBP, Qualified Non-Elective Contributions, Represented Employees EBP, Qualified Non-Elective Contributions, Represented Employees EBP, Qualified Non-Elective Contributions, Represented Employees EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] General loan, maximum borrowing term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term Former employee, separated for reasons other than retirement, minimum service period EBP, Former Employee, Separated For Reasons Other Than Retirement, Minimum Service Period EBP, Former Employee, Separated For Reasons Other Than Retirement, Minimum Service Period Vesting percentage EBP, Employer Contribution Vesting Percentage EBP, Employer Contribution Vesting Percentage EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Benefits paid to participants per the Form 5500 EBP, Form 5500 Caption, Benefit Payment and Payments to Provide Benefits Less: Deemed distributions of participant loans at December 31, 2024 EBP, Reconciliation to Form 5500, Payment to Participant, Prior Period, Decrease from Deemed Distribution EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type [Axis] EBP, Employer Contribution, Type Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Notes receivable from participants EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution PIMCO PIMCO [Member] PIMCO Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] Document Type Document Type General loan, minimum borrowing term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term EBP, Note Receivable From Participant, General Loan, Minimum Borrowing Term Plan Termination EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Participant loan, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Collective investment funds Common Collective Trust [Member] Net assets available for plan benefits EBP, Net Asset Available for Benefit [Abstract] Employee Stock Ownership Plan EBP, Contribution [Text Block] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Payable to brokers and other EBP, Liability To Broker And Other EBP, Liability To Broker And Other Deductions EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Forfeited nonvested account, decrease from employer contribution EBP, Forfeited Nonvested Account, Decrease from Employer Contribution Notes receivable from participants EBP, Note Receivable from Participant Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Summary of Significant Accounting Policies EBP, Summary of Accounting Policy [Text Block] Entity Registrant Name Entity Registrant Name Cost of asset EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Cost Liabilities EBP, Liability [Abstract] Subsequent Events EBP, Subsequent Event [Policy Text Block] Tax Status EBP, Tax Status [Text Block] Purchase price EBP, Investment Acquired, Excluding Plan Interest in Master Trust, Purchase Price EBP, Contribution [Line Items] EBP, Contribution [Line Items] Par value (in dollars per share) EBP, Investment, Par or Maturity Value Document Information [Table] Document Information [Table] Notes Receivable from Participants EBP, Note Receivable from Participant [Policy Text Block] Total investment income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment Next Century Next Century [Member] Next Century Add: Amounts allocated to withdrawing participants at December 31, 2025 EBP, Reconciliation to Form 5500, Payment to Participant, Increase from Allocation to Withdrawing Participant, Not yet Paid EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] New forfeited non-vested accounts EBP, Forfeited Nonvested Account, Increase (Decrease) In Period EBP, Forfeited Nonvested Account, Increase (Decrease) In Period Net assets available for plan benefits Beginning of year End of year Net assets available for plan benefits EBP, Net Asset Available for Benefit Entity [Domain] Entity [Domain] Contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Westwood Westwood [Member] Westwood Forfeited nonvested account EBP, Forfeited Nonvested Account Separate managed funds, mortgage-backed securities EBP, Separate Managed Funds, Fixed Income Investments, Mortgage-Backed Securities [Member] EBP, Separate Managed Funds, Fixed Income Investments, Mortgage-Backed Securities Net assets available for plan benefits per the Form 5500 EBP, Form 5500 Caption, Net Assets Money market fund EBP, Cash And Other Short-Term Investments, Money Market Funds And Employer, Common Stock Fund [Member] EBP, Cash And Other Short-Term Investments, Money Market Funds And Employer, Common Stock Fund NAV Fair Value Measured at Net Asset Value Per Share [Member] Involuntary cash-out limit EBP, Involuntary Cash-out Limit EBP, Involuntary Cash-out Limit EBP, Investment, Fair Value and NAV [Table] EBP, Investment, Fair Value and NAV [Table] EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Add: Deemed distributions of participant loans at December 31, 2025 EBP, Reconciliation to Form 5500, Payment to Participant, Current Period, Increase from Deemed Distribution