Other Other Operating Revenue [Member] Other Operating Revenue Receivable (payables), net, related to investments Receivables (Payables) Net, Related to Investments Interest and dividends receivables and receivables related to pending securities sales and payables related to pending securities purchases as of the balance sheet date. Commodity Commodity Contract [Member] Expected return on plan assets Defined Benefit Plan, Expected Return (Loss) on Plan Assets Cash collateral posted Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash, Offset Against Derivative Asset Customers Sales Channel, Directly to Consumer [Member] Award Timing Predetermined Award Timing Predetermined [Flag] Entity File Number Entity File Number Additional Paid-in Capital Additional Paid-in Capital [Member] Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Amount Tabular List, Table Tabular List [Table Text Block] New Accounting Guidance New Accounting Pronouncements, Policy [Policy Text Block] Schedule of Fair Value of Debt Recorded at Carrying Value Fair Value, by Balance Sheet Grouping [Table Text Block] Adjustment to Compensation: Adjustment to Compensation [Axis] Related-Party Transactions Related Party Transactions Disclosure [Text Block] Named Executive Officers, Footnote Named Executive Officers, Footnote [Text Block] Revenue Revenue from Contract with Customer [Text Block] Preferred stock dividends paid Payments of Ordinary Dividends, Preferred Stock and Preference Stock Commercial insurance carriers Commercial insurance carriers [Member] Refers to commercial insurance carriers. Other Minor Structures Other Minor Structures [Member] Other Minor Structures Stock, Class of Stock [Table] Stock, Class of Stock [Table] Power generating capacity of projects owned controlled Power Generating Capacity of Projects Owned Controlled Power Generating Capacity of Projects Owned Controlled Cash collateral posted Cash collateral posted Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Offset Total other assets Other Assets, Miscellaneous, Noncurrent Adjustment to Compensation, Amount Adjustment to Compensation Amount Pension Plans Pension Plan [Member] Consolidation Consolidation, Policy [Policy Text Block] Employee Stock Option Share-Based Payment Arrangement, Option [Member] Effective Income Tax Rate Reconciliation, Percent [Abstract] Effective Income Tax Rate Reconciliation, Percent [Abstract] Asset impairment and other Asset impairment Asset Impairment Charges Total equity Beginning balance Ending balance Equity, Attributable to Parent Other comprehensive income, net of tax: Other Comprehensive Income (Loss), Net of Tax [Abstract] Insider Trading Policies and Procedures [Line Items] Common stock, shares authorized (in shares) Common Stock, Shares Authorized Common stock issued (in shares) Stock Issued During Period, Shares, New Issues LIABILITIES AND EQUITY Liabilities and Equity [Abstract] Cover [Abstract] Cover [Abstract] Money market funds, fair value Cash and Cash Equivalents, Fair Value Disclosure Maximum Maximum [Member] SCE Southern California Edison Company [Member] Represents Southern California Edison, a public utility that is a subsidiary of Edison International. Component of Balancing Account [Axis] Component of Balancing Account [Axis] Component of Balancing Account [Axis] Preferred stock repurchased Stock Repurchased During Period, Value, Preferred Shares Stock Repurchased During Period, Value, Preferred Shares Third-party uninsured claims cost recovery waiver Loss Contingency, Waived Cost Recovery, Third Party Uninsured Claims Agreement to waive the right to seek cost recovery of third-party uninsured claims payments. Non-PEO NEO Average Total Compensation Amount Non-PEO NEO Average Total Compensation Amount Debt Debt Instrument [Line Items] Adjustment to Non-PEO NEO Compensation Footnote Adjustment to Non-PEO NEO Compensation Footnote [Text Block] Insurance For The Period June 1, 2019 Through June 30, 2020 Insurance For The Period June 1, 2019 Through June 30, 2020 [Member] Insurance For The Period June 1, 2019 Through June 30, 2020 Retirement Benefits [Abstract] Retirement Benefits [Abstract] Series B Preferred Stock Series B Preferred Stock [Member] Forgone Recovery due to Disqualification of Tax Benefits, Amount Forgone Recovery due to Disqualification of Tax Benefits, Amount Non-Rule 10b5-1 Arrangement Terminated Non-Rule 10b5-1 Arrangement Terminated [Flag] Income before income taxes Income from operations before income taxes Income (Loss) from Continuing Operations before Income Taxes, Noncontrolling Interest Entity Shell Company Entity Shell Company Unrealized Unrealized Gain (Loss) on Derivatives, Included in Regulatory Assets and Liabilities The net change in the difference between the fair value and the carrying value, or in the comparative fair values, of derivative instruments, held at each balance sheet date, that was included In Regulatory Assets and Liabilities. Environmental Remediation Site [Domain] Environmental Remediation Site [Domain] Debt Instrument Senior Notes 6.25 Percent Due 2030 Debt Instrument Senior Notes 6.25 Percent Due 2030 [Member] Debt Instrument Senior Notes 6.25 Percent Due 2030 Schedule of Long-term Debt Instruments [Table] Schedule of Long-Term Debt Instruments [Table] Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest And Preferred Stock Dividends Net Income (Loss), Including Portion Attributable to Noncontrolling Interest And Preferred Stock Dividends Proceeds from issuance of debt Proceeds from Issuance of Debt Regulatory Assets Regulatory Asset [Line Items] Loss Contingency Nature [Axis] Loss Contingency Nature [Axis] Schedule of Income Taxes Paid (Refunded) Schedule of Cash Flow, Supplemental Disclosures [Table Text Block] Gain (loss) on repurchase of preferred stock Gain (Loss) On Repurchase Of Preferred Stock Gain (Loss) On Repurchase Of Preferred Stock Less: Comprehensive income attributable to noncontrolling interests Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest Award Timing MNPI Considered Award Timing MNPI Considered [Flag] Line of Credit Facility [Table] Line of Credit Facility [Table] Loss contingency, civilian fatalities Loss Contingency, Civilian Fatalities Loss Contingency, Civilian Fatalities Regulated Operation, Regulatory Liability [Table] Regulated Operation, Regulatory Liability [Table] Homes Home/Residential [Member] Home Current portion of operating lease liabilities Operating Lease, Liability, Current Document Fiscal Period Focus Document Fiscal Period Focus Federal loss limit, bodily injury and property damage from nuclear incident Loss Limit, Public Offsite, Bodily Injury and Property Damage from Nuclear Incident, Federal Claim Limit Loss Limit, Public Offsite, Bodily Injury and Property Damage from Nuclear Incident, Federal Claim Limit Other Wildfire Events Other Wildfire Events Related Claims [Member] Other Wildfire Events Related Claims Award Timing Method Award Timing Method [Text Block] Litigation Case [Domain] Litigation Case [Domain] Award Type Award Type [Axis] Deferred revenue, non-current Contract with Customer, Liability, Noncurrent Trading Symbol Trading Symbol Minor structures Minor structures [Member] Minor Structures 4.80% first and refunding mortgage bonds due in 2033 First and Refunding Mortgage Bonds, 4.80 Percent, Due 2033 [Member] First and Refunding Mortgage Bonds, 4.80 Percent, Due 2033 Insurance For The Period July 1, 2021 Through June 30, 2022 Insurance For The Period July 1, 2021 Through June 30, 2022 [Member] Insurance For The Period July 1, 2021 Through June 30, 2022 Entity Address, City or Town Entity Address, City or Town Short-Term Debt, Type [Domain] Short-Term Debt, Type [Domain] 2026 Repurchase Program 2026 Repurchase Program [Member] 2026 Repurchase Program Loss contingency, customer funded self-insurance Loss Contingency, Customer Funded Self-Insurance Loss Contingency, Customer Funded Self-Insurance Maximum per incident, prior events, annually Ownership Limit on Offsite Liability Claims from Nuclear Incident, Past Events, Annually, Approximate Ownership Limit on Offsite Liability Claims from Nuclear Incident, Past Events, Annually, Approximate Loss contingency, estimated recovery from electric rates Loss Contingency, Receivable From Electric Rates Loss Contingency, Receivable From Electric Rates Non-PEO NEO Average Compensation Actually Paid Amount Non-PEO NEO Average Compensation Actually Paid Amount Allowance for Uncollectible Accounts Credit Loss, Financial Instrument [Policy Text Block] Compensation Actually Paid vs. Other Measure Compensation Actually Paid vs. Other Measure [Text Block] Entity Emerging Growth Company Entity Emerging Growth Company Other adjustments Effective Income Tax Rate Reconciliation, Other Reconciling Items, Amount [Abstract] Cash collateral not offset against liability Derivative Liability, Subject to Master Netting Arrangement, Collateral, Right to Reclaim Cash Not Offset Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year Change in Fair Value as of Vesting Date of Prior Year Equity Awards Vested in Covered Year [Member] Woolsey Agreement Woolsey Subrogation Settlement [Member] Represents the Woolsey Settlement / Agreement. Total revenue from contracts with customer Revenue from Contract with Customer, Including Assessed Tax Nonutility property, plant and equipment, net of accumulated depreciation of $117 and $132 at respective dates Nonutility property, plant and equipment, net of accumulated depreciation of $98 and $113 at respective dates Property, Plant and Equipment, Other, Net Rate funded wildfire self-insurance program future proceeds, assuming no claims Proceeds from Self Insurance Program, Excluding Wildfire Related Claims The future amount to be collected from self insurance program in the absence of wildfire related claims. Common stock, shares outstanding (in shares) Common stock, shares, outstanding, beginning balance Common stock, shares, outstanding, ending balance (in shares) Common Stock, Shares, Outstanding Nuclear decommissioning trusts Gain (Loss) on Disposition of Other Assets Current period provision for uncollectible accounts Accounts Receivable, Credit Loss Expense (Reversal) Money market funds and other Other Assets, Fair Value Disclosure Schedule of Revenue Disaggregation of Revenue [Table Text Block] Alternative revenue program and other Alternative Revenue Programs and Other Operating Revenue Alternative Revenue Programs and Other Operating Revenue Net assets Fair Value, Net Asset (Liability) Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year Dividends or Other Earnings Paid on Equity Awards not Otherwise Reflected in Total Compensation for Covered Year [Member] Derivative Instruments and Hedging Activities Disclosure [Abstract] Derivative Instruments and Hedging Activities Disclosure [Abstract] Recovery through customer rates (as a percent) Percentage of Environmental Remediation Costs to be Recovered Represents the percentage of environmental remediation costs to be recovered. Entity Address, Postal Zip Code Entity Address, Postal Zip Code Restatement Determination Date Restatement Determination Date Income tax expense Effective tax rate Income Tax Expense (Benefit) Variable interest rate Secured Overnight Financing Rate ("SOFR") plus (as a percent) Debt Instrument, Basis Spread on Variable Rate Wildfire Fund contributions Wildfire Fund Contributions, Current Wildfire Fund Contributions, Current Customer-funded wildfire self-insurance Customer-funded wildfire self-insurance Loss Contingency, Expected (Recoveries From) Customer-Funded Self-Insurance Loss Contingency, Expected (Recoveries From) Customer-Funded Self-Insurance Assets Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset Value Purchases of nuclear decommissioning trust investments Payments to Acquire Investments to be Held in Decommissioning Trust Fund Preferred stock, shares issued (in shares) Preferred Stock, Shares Issued Pension Adjustments Service Cost Pension Adjustments Service Cost [Member] Fair Value Hierarchy and NAV [Axis] Fair Value Hierarchy and NAV [Axis] Regulatory Assets and Liabilities Disclosure [Abstract] Regulatory Assets and Liabilities Disclosure [Abstract] Other Wildfire Events Other Wildfire Events [Member] Other Wildfire Events Other Income and Expenses [Abstract] Other Income and Expenses [Abstract] Compensation Actually Paid vs. Company Selected Measure Compensation Actually Paid vs. Company Selected Measure [Text Block] Recovery from customers, incremental costs Accounts Receivable, Regulatory Assets, Credit Loss Expense (Reversal) Accounts Receivable, Regulatory Assets, Credit Loss Expense (Reversal) Pension and other postretirement benefits Pension and Other Postretirement Plans Costs [Member] All Trading Arrangements All Trading Arrangements [Member] Equity Awards Adjustments, Footnote Equity Awards Adjustments, Footnote [Text Block] Total Shareholder Return Vs Peer Group Total Shareholder Return Vs Peer Group [Text Block] Accrued interest Accrued Liabilities, Current Less: Preference stock dividend requirements Preferred Stock Dividends, Income Statement Impact Other Effective Income Tax Rate Reconciliation, Other Adjustments, Amount Requested increase revenue requirement Public Utilities, Requested Rate Increase (Decrease), Amount Commitments and Contingencies Disclosure [Abstract] Commitments and Contingencies Disclosure [Abstract] Proceeds from self-insurance program Proceeds from Insurance Premiums Collected Net cash provided by operating activities Net cash provided by operating activities Cash Provided by (Used in) Operating Activity, Including Discontinued Operation Short-term debt repaid Repayments of Short-Term Debt Total investments Long-Term Investments Subsequent Event Subsequent Event [Member] All others All Others [Member] Sales Channel, All Others Equity Valuation Assumption Difference, Footnote Equity Valuation Assumption Difference, Footnote [Text Block] PEO Total Compensation Amount PEO Total Compensation Amount Long-Term Debt, Type [Axis] Long-Term Debt, Type [Axis] Derivative contracts Gross amounts recognized Derivative Liability, Subject to Master Netting Arrangement, before Offset Equity Components [Axis] Equity Components [Axis] Standby letters of credit Standby Letters of Credit [Member] Loss contingency, wildfire insurance coverage Loss Contingency, Wildfire Insurance Coverage Current or expected wildfire insurance coverage. Non-Rule 10b5-1 Arrangement Adopted Non-Rule 10b5-1 Arrangement Adopted [Flag] Insurance For The Period July 1, 2020 Through June 30, 2021 Insurance For The Period July 1, 2020 Through June 30, 2021 [Member] Insurance For The Period July 1, 2020 Through June 30, 2021 Variable Interest Entities Variable Interest Entity Disclosure [Text Block] FERC recoveries FERC Recoveries [Member] FERC Recoveries Regulatory liabilities Total long-term Regulatory Liability, Noncurrent Entity Address, State or Province Entity Address, State or Province Common stock dividends declared Dividends declared on common stock Dividends, Common Stock Total current liabilities Liabilities, Current Individual: Individual [Axis] Wildfire Claims Wildfire Claims [Member] Wildfire Claims Common stock dividends paid Payments of Ordinary Dividends, Common Stock Entities [Table] Entities [Table] Less: Preference stock dividend requirements of SCE Preferred Stock Dividends, Income Statement Impact, Attributable To Noncontrolling Interest Preferred Stock Dividends, Income Statement Impact, Attributable To Noncontrolling Interest Minimum federal requirement of nuclear property insurance Loss Limit, Property Damage Insurance, Federal Minimum Requirement Loss Limit, Property Damage Insurance, Federal Minimum Requirement Increase in cash surrender value of life insurance policies and life insurance benefits Increase (Decrease) in Cash Surrender Value of Life Insurance Policies This element represents the net change during the reporting period in cash surrender value of life insurance policies. Project [Domain] Project [Domain] Forgone Recovery, Explanation of Impracticability Forgone Recovery, Explanation of Impracticability [Text Block] Long-term debt repaid Repayments of Long-Term Debt Entity Interactive Data Current Entity Interactive Data Current Regulatory balancing and memorandum accounts Regulatory Clause Revenues, under-Recovered [Member] Loss Contingency, Nature [Domain] Loss Contingency, Nature [Domain] Term Loan Agreement Due March 2027 Term Loan Agreement Due March 2027 [Member] Term Loan Agreement Due March 2027 Revenue Recognition Revenue from Contract with Customer [Policy Text Block] Loss contingency, estimated fire suppression costs Loss Contingency, Estimated Fire Suppression Costs Loss Contingency, Estimated Fire Suppression Costs Maximum per incident annual Ownership Limit on Offsite Liability Claims from Nuclear Incident, Annually, Approximate Ownership Limit on Offsite Liability Claims from Nuclear Incident, Annually, Approximate Disaggregation of Revenue [Table] Disaggregation of Revenue [Table] Realized Gain (Loss) on Sale of Derivatives Residential Residential [Member] Residential Regulatory adjustment Defined Benefit Plan, Regulatory Adjustment Deferred Defined Benefit Plan, Regulatory Adjustment Deferred Other long-term assets Other Assets, Noncurrent Customer [Domain] Customer [Domain] Entity Central Index Key Entity Central Index Key Claims-paying capacity Loss Contingency, Wildfire Insurance Fund, Estimated Claim Paying Capacity Loss Contingency, Wildfire Insurance Fund, Estimated Claim Paying Capacity PEO Name PEO Name Other Income, Net Other Income And Expense [Line Items] [Line Items] for Other Income And Expense [Table] Schedule of First and Refunding Mortgage Bonds Schedule of Maturities of Long-Term Debt [Table Text Block] Operating revenue Total operating revenue Revenues Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year Prior Year End Fair Value of Equity Awards Granted in Any Prior Year that Fail to Meet Applicable Vesting Conditions During Covered Year [Member] Fair Value of Long-Term Debt Recorded at Carrying Value Fair Value, Balance Sheet Grouping, Financial Statement Captions [Line Items] Supplemental Cash Flow Elements [Abstract] Supplemental Cash Flow Elements [Abstract] Regulatory Liabilities Regulatory Liability [Line Items] Outstanding Aggregate Erroneous Compensation Amount Outstanding Aggregate Erroneous Compensation Amount Liabilities Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Liability Value Defined Benefit Plan [Table] Defined Benefit Plan [Table] Schedule of Segment Reporting Information, by Segment [Table] Schedule of Segment Reporting Information, by Segment [Table] Deferred revenue, current Contract with Customer, Liability, Current Derivative contracts, netting and collateral Derivative Asset, Subject to Master Netting Arrangement, Gross Liability and Collateral, Obligation to Return Cash, Offset Schedule of Gross and Net Fair Values of Commodity Derivative Instruments Schedule of Derivative Instruments in Statement of Financial Position, Fair Value [Table Text Block] Exercise Price Award Exercise Price Entity Filer Category Entity Filer Category Class of Stock [Domain] Class of Stock [Domain] Economic Hedges Derivative, Nonmonetary Notional Amount, Energy Measure Common stock, no par value (in dollars per share) Common Stock, No Par Value Federal statutory tax rate Effective Income Tax Rate Reconciliation, at Federal Statutory Income Tax Rate, Percent Subsequent Event Type [Axis] Subsequent Event Type [Axis] Increase in accrued losses Wildfire-related claims Loss Contingency Accrual, Provision Long-term debt (includes $3,004 and $3,022 related to a VIE at respective dates) Long-term debt Long-term debt (includes $3,004 and $3,022 related to a VIE at respective dates) Long-Term Debt, Excluding Current Maturities Wildfire Fund contributions Wildfire Fund Contributions, Noncurrent Wildfire Fund Contributions, Noncurrent Nonrelated Party Nonrelated Party [Member] Statement of Financial Position Location, Balance [Axis] Statement of Financial Position Location, Balance [Axis] Investment Location [Domain] Investment Location [Domain] Investment Location [Domain] Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year Vesting Date Fair Value of Equity Awards Granted and Vested in Covered Year [Member] Entity Address, Address Line One Entity Address, Address Line One Entity Address, Address Line Two Entity Address, Address Line Two Accumulated Other Comprehensive Income Accumulated Other Comprehensive Loss AOCI Attributable to Parent [Member] Receivables, net of allowances for uncollectible accounts Accounts Receivable, Allowance for Credit Loss, Current 2017/2018 Wildfire/Mudslide Events And The Other Wildfire Events 2017/2018 Wildfire/Mudslide Events And The Other Wildfire Events [Member] Wildfire/Mudslide 2017/2018 Events [Member] Minimum estimated liability Minimum Costs to be Identified Site The upper end of the range of a site's cost estimate must be at least this amount to be classified as a material identified site. Below this amount an identified site will be an immaterial site. Derivative Instruments Derivative Instruments and Hedging Activities Disclosure [Text Block] Edison International Parent Edison International Parent and Other [Member] Edison International Parent And Other [Member] Insurance and other third party recoveries Insurance Recoveries Fair Value as of Grant Date Award Grant Date Fair Value Schedule of Other Income Net of Expenses Schedule of Other Nonoperating Income (Expense) [Table Text Block] 2017 Creek Fire Creek Fire [Member] Represents the Creek Fire, which originated near Sylmar in Los Angeles County in December 2017. Structures destroyed Loss Contingency, Structures Destroyed Loss Contingency, Structures Destroyed Total operating expenses Costs and Expenses Related party transactions Related Party Transaction [Line Items] Document Quarterly Report Document Quarterly Report Deferred income taxes Deferred Income Taxes and Tax Credits Fair value Long-Term Debt, Fair Value Schedule of Significant Unobservable Inputs Used to Determine Fair Value for Level 3 Fair Value Measurement Inputs and Valuation Techniques [Table Text Block] Changed Peer Group, Footnote Changed Peer Group, Footnote [Text Block] Counterparty Name [Domain] Counterparty Name [Domain] Adjustment To PEO Compensation, Footnote Adjustment To PEO Compensation, Footnote [Text Block] Cost may exceed liability Site Contingency, Loss Exposure Not Accrued, Best Estimate Title Trading Arrangement, Individual Title Peer Group Total Shareholder Return Amount Peer Group Total Shareholder Return Amount Non-PEO NEO Non-PEO NEO [Member] Letters of credit outstanding, amount Outstanding Letters of Credit Letters of Credit Outstanding, Amount Interest income Interest Income, Other Woolsey Settlement cost recovery Woolsey Settlement Cost Recovery [Member] Woolsey Settlement Cost Recovery Schedule of Regulatory Liabilities Schedule of Regulatory Liabilities [Table Text Block] All Award Types Award Type [Domain] Equity Awards Adjustments Equity Awards Adjustments [Member] Other Other Noncash Income (Expense) Pension Benefits Adjustments, Footnote Pension Benefits Adjustments, Footnote [Text Block] Revenue from contracts with customers Disaggregation of Revenue [Line Items] Pension and Other Postretirement Benefits Defined Benefit Plan Disclosure [Line Items] Compensation Amount Outstanding Recovery Compensation Amount Debt Instrument, Name [Domain] Debt Instrument, Name [Domain] Legal and other costs Litigation Settlement, Fee Expense Wildfire Liability Insurance Wildfire Liability Insurance [Member] Wildfire Liability Insurance [Member] Recovery of Erroneously Awarded Compensation Disclosure [Line Items] Retirement Plan Type [Domain] Retirement Plan Type [Domain] Schedule of Changes in Allowance for Uncollectible Accounts Accounts Receivable, Allowance for Credit Loss [Table Text Block] MNPI Disclosure Timed for Compensation Value MNPI Disclosure Timed for Compensation Value [Flag] Long-term receivables from Wildfire Fund recoveries Long-term Receivables From Wildfire Fund Recoveries [Member] Long-term Receivables From Wildfire Fund Recoveries West of Devers West of Devers [Member] Information related to the West of Devers Transmission Project. Accumulated other comprehensive income Accumulated Other Comprehensive Income (Loss), Net of Tax Shareholder-funded safety measures costs Loss Contingency, Shareholder Funded Safety Measures Shareholder-funded safety measures costs. SCE Recovery Funding LLC SCE Recovery Funding LLC [Member] SCE Recovery Funding LLC a special purpose subsidiary. Financial Instruments [Domain] Financial Instruments [Domain] Aggregate Aggregate [Member] Information is the aggregate amount to date. Dividends to noncontrolling interests Subsidiary or Equity Method Investee, Noncontrolling Interest in Income of Subsidiary Aggregate Pension Adjustments Service Cost Aggregate Pension Adjustments Service Cost [Member] Environmental Remediation Site [Axis] Environmental Remediation Site [Axis] Inventory Inventory, Net Other adjustments Effective Income Tax Rate Reconciliation, Other Reconciling Items, Percent [Abstract] Expected recovery from incentive mechanism Portion of Recorded Liability Recoverable From Incentive Mechanism The portion of the recorded liability for environmental remediation costs recoverable through incentive mechanism. Minimum Minimum [Member] Single Residence Single Residence [Member] Single Residence Receivables Accounts, Notes, Loans and Financing Receivable [Line Items] Company Selected Measure Name Company Selected Measure Name Recorded estimated minimum liability Accrual for Environmental Loss Contingencies Debt and Credit Agreements Debt Disclosure [Text Block] Aggregate Available Trading Arrangement, Securities Aggregate Available Amount Accounts payable Accounts Payable, Current Stock Appreciation Rights (SARs) Stock Appreciation Rights (SARs) [Member] Dividends declared but not paid Dividends Payable Net income available to Edison International common shareholders Net Income (Loss) Available to Common Stockholders, Diluted Stockholders' Equity Note [Abstract] Stockholders' Equity Note [Abstract] Total realized/unrealized gains losses Fair Value, Measurement with Unobservable Inputs Reconciliation, Recurring Basis, Asset, Gain (Loss) Included in Regulatory Assets and Liabilities This element represents total gains or losses for the period (realized and unrealized), included in regulatory assets and liabilities measured at fair value on a recurring basis using unobservable inputs (level 3). Wildfire-related claims Long term wildfire-related claims liabilities Loss Contingency, Accrual, Noncurrent Commitments and Contingencies Commitments and Contingencies Disclosure [Text Block] Regulated Operation, Regulatory Asset [Table] Regulated Operation, Regulatory Asset [Table] Weighted average shares of common stock outstanding, including effect of dilutive securities (in shares) Adjusted weighted average shares - diluted (in shares) Weighted Average Number of Shares Outstanding, Diluted Weighted average interest rate (as a percent) Short-Term Debt, Weighted Average Interest Rate, at Point in Time Segment Information Segment Reporting, Policy [Policy Text Block] Non-GAAP Measure Description Non-GAAP Measure Description [Text Block] Derivative [Table] Derivative [Table] Loss contingency, uninsured claims Loss Contingency, Uninsured Claims The amount of uninsured claims in loss contingency transaction. Entity Small Business Entity Small Business Income Tax Disclosure [Abstract] Income Tax Disclosure [Abstract] Shareholder-funded safety measures costs Loss Contingency, Loss in Period Capitalization, Equity [Table] Capitalization, Equity [Table] Preferred stock, shares outstanding (in shares) Preferred stock, shares outstanding, beginning balance (in shares) Preferred stock, shares outstanding, ending balance (in shares) Preferred Stock, Shares Outstanding Document Transition Report Document Transition Report Investments Summary of Investment Holdings [Line Items] Commercial paper repayments, net of borrowing Proceeds from (Repayments of) Commercial Paper Preferred stock (50,000,000 shares authorized; zero and 414,342 shares of Series A and 83,503 and 87,937 shares of Series B issued and outstanding at respective dates) Preference stock Preferred Stock, Value, Outstanding Underlying Securities Award Underlying Securities Amount Equity Component [Domain] Equity Component [Domain] Wildfire and drought restoration Wildfire and Drought Restoration Account [Member] Represents information pertaining to wildfire and drought restoration account. Document Period End Date Document Period End Date Supply of electricity area covered (in square miles) Supply Of Electricity Area Covered 1 Supply Of Electricity Area Covered 1 Proceeds from sale of nuclear decommissioning trust investments Proceeds from Decommissioning Trust Fund Assets Income Taxes Income Tax Disclosure [Text Block] Beginning balance Ending balance Accounts Receivable, Allowance for Credit Loss Awards Close in Time to MNPI Disclosures, Table Awards Close in Time to MNPI Disclosures [Table Text Block] Income Tax Income Tax Disclosures [Line Items] Income Tax Disclosures [Line Items] Environmental remediation expense Environmental Remediation Expense, before Recovery Derivative contracts, total Net amounts presented in the condensed consolidated balance sheets Derivative Asset, Including Not Subject to Master Netting Arrangement, after Offset and Deduction 2017/2018 Wildfire/Mudslide Events 2017/2018 Wildfire/Mudslide Events [Member] Wildfire/Mudslide 2017/2018 Events [Member] Total equity Beginning balance Ending balance Equity, Including Portion Attributable to Noncontrolling Interest Document Type Document Type Level 3 Fair Value, Inputs, Level 3 [Member] Name Outstanding Recovery, Individual Name Loss Contingencies [Table] Loss Contingencies [Table] Additional paid-in capital Additional Paid in Capital Short-term investments, primarily cash equivalents Short-term investments, primarily cash equivalents [Member] This element represents the fair value of short-term investments and cash equivalents as of the statement of financial position. Litigation Status [Domain] Litigation Status [Domain] Fatalities Loss Contingency, Fatalities Loss Contingency, Fatalities Utility property, plant and equipment, net of accumulated depreciation and amortization Public Utilities, Property, Plant and Equipment, Accumulated Depreciation Uninsured claims and other costs Loss Contingency, Uninsured Claims and Other Costs The amount of uninsured claims and other costs in loss contingency transaction. Total current assets Assets, Current Statistical Measurement [Axis] Statistical Measurement [Axis] Share repurchase program, authorized amount Share Repurchase Program, Authorized, Amount Charge for wildfire-related claims Balance at December 31, 2025 Balance at March 31, 2026 Total balance at end of period Loss Contingency Accrual Regulatory Asset [Domain] Regulatory Asset [Domain] Fair Value Measurements Fair Value Measurement Inputs and Valuation Techniques [Line Items] Aggregate Erroneous Compensation Amount Aggregate Erroneous Compensation Amount Acres burned Loss Contingency, Acres Burned Loss Contingency, Acres Burned Peer Group Issuers, Footnote Peer Group Issuers, Footnote [Text Block] Income available to common shareholders Income available to common shareholders Net Income (Loss) Available to Common Stockholders, Basic Regulatory assets Total current Regulatory Asset, Current Entity Information [Line Items] Entity Information [Line Items] Share Repurchase Program [Domain] Share Repurchase Program [Domain] Coastal Fire Coastal Fire [Member] Represents the Coastal Fire that originated in Orange County in May 2022. Long-term receivables from insurance and third parties Long-Term Insurance Receivables [Member] Long-Term Insurance Receivables Schedule of Gains/(Losses) of Economic Hedging Activity Derivative Instruments, Gain (Loss) [Table Text Block] Outstanding Borrowings Long-Term Line of Credit Level 1 Fair Value, Inputs, Level 1 [Member] Related Party Transaction [Table] Related Party Transaction [Table] Schedule of Net Regulatory Balancing and Memorandum Accounts Schedule of Regulatory Balancing Accounts [Table Text Block] Schedule of Regulatory Balancing Accounts [Table Text Block] Diluted earnings per common share available to Edison International common shareholders (in dollars per share) Diluted earnings per share (in dollars per share) Earnings Per Share, Diluted Receivables, net of allowances for uncollectible accounts of $348 and $356 at respective dates Receivables, net of allowances for uncollectible accounts of $347 and $353 at respective dates Accounts Receivable, after Allowance for Credit Loss, Current Non-cash financing and investing activities: Cash Flow, Noncash Investing and Financing Activities Disclosure [Abstract] Loss contingency, personnel injuries/illnesses Loss Contingency, Personnel Injuries/Illnesses Loss Contingency, Personnel Injuries/Illnesses Number of plaintiffs in settlement Loss Contingency, Number of Plaintiffs, Entered In To Settlements Loss Contingency, Number of Plaintiffs, Entered In To Settlements Estimated insurance recoveries and recoveries through electric rates Total Estimated Insurance Recoveries And Recoveries Through Electric Rates Estimated Insurance Recoveries And Recoveries Through Electric Rates Thomas Koenigstein Fires And Montecito Mudslides Thomas Koenigstein Fires And Montecito Mudslides [Member] Thomas Koenigstein Fires And Montecito Mudslides Regulatory Liability [Domain] Regulatory Liability [Domain] Contract with Customer, Sales Channel [Axis] Contract with Customer, Sales Channel [Axis] CPUC cost recovery Loss Contingency, Capital Expenditures Restoration Amount Requested cost recovery with regulatory agency related to capital. Saddle Ridge Fire Saddle Ridge Fire [Member] Saddle Ridge Fire originated in Los Angeles county in October 2019. Income tax payments Income Taxes Paid, Net Corporate bonds Corporate Bond Securities [Member] Long-term debt issued, net of discount and issuance costs Premiums, (Discounts) and Issuance Costs of Long Term Debt Premiums, (Discounts) and Issuance Costs of Long Term Debt CRRs Congestion revenue rights Congestion Revenue Rights (GWh) [Member] Congestion revenue rights [Member] December 2017 Wildfires December 2017 Wildfires [Member] December 2017 Wildfires [Member] Eaton Fire Eaton Fire [Member] Eaton Fire Expiration Date Trading Arrangement Expiration Date Fixed Income Fixed Income Securities [Member] Total property, plant and equipment Property, Plant and Equipment, Net Compensation Actually Paid vs. Net Income Compensation Actually Paid vs. Net Income [Text Block] Series A Preferred Stock Series A Preferred Stock [Member] Entity Current Reporting Status Entity Current Reporting Status GRC related balancing accounts GRC related balancing accounts [Member] Represent information pertaining to GRC Wildlife mitigation balancing accounts. Derivatives Derivative [Line Items] Awards Close in Time to MNPI Disclosures Awards Close in Time to MNPI Disclosures [Table] Consolidated Entities [Domain] Consolidated Entities [Domain] Federal statutory tax rate Effective Income Tax Rate Reconciliation at Federal Statutory Income Tax Rate, Amount Financial Instrument [Axis] Financial Instrument [Axis] Statement of Financial Position [Abstract] Statement of Financial Position [Abstract] Executive Category: Executive Category [Axis] Asset retirement obligations Asset Retirement Obligations, Noncurrent Repayments of debt Repayments of Debt State income tax, net of federal income tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Percent Wildfire-related claims Current portion of wildfire-related claims liabilities Loss Contingency, Accrual, Current Valuation, Market Approach Valuation, Market Approach [Member] Fair Value Disclosures Level 3 [Roll Forward] Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Input Reconciliation [Roll Forward] Long-term debt issued, net of premium (discount) and issuance costs of $2 and $(49) for the respective periods Long-term debt issued, net of premium (discount) and issuance costs of $7 and $(38) for the respective periods Proceeds from Issuance of Long-Term Debt Current Fiscal Year End Date Current Fiscal Year End Date Expected recoveries from customer-funded wildfire self-insurance Expected Recoveries From Customer-Funded Wildfire Self-Insurance [Member] Expected Recoveries From Customer-Funded Wildfire Self-Insurance Total pre-tax (gain)/charge Loss Contingency Accrual, Provision, Before Tax Loss Contingency Accrual, Provision, Before Tax Equity Awards Adjustments, Excluding Value Reported in Compensation Table Equity Awards Adjustments, Excluding Value Reported in the Compensation Table [Member] Deferred tax liabilities on net unrealized gains Decommissioning Trust, Deferred Income Taxes Decommissioning Trust, Deferred Income Taxes Fairview Fire Fairview Fire [Member] Represents the Fairview Fire that originated in Riverside county in September 2022. Fair Values Decommissioning Fund Investments, Receivables (Payables), Fair Value Decommissioning Fund Investments, Receivables (Payables), Fair Value Schedule of Fair Value by Level within the Fair Value Hierarchy Schedule of Fair Value, Assets and Liabilities Measured on Recurring Basis [Table Text Block] Investment tax credits Investment Tax Credit Maximum annual shareholder contribution Maximum Annual Contribution, to Self Insurance Program The maximum amount of annual shareholder contribution to wildfire insurance program. Antidilutive awards excluded from earnings per share (in shares) Antidilutive Securities Excluded from Computation of Earnings Per Share, Amount Corporate alternative minimum tax Effective Income Tax Rate Reconciliation, Corporate Alternative Minimum Tax, Amount Effective Income Tax Rate Reconciliation, Corporate Alternative Minimum Tax, Amount Fair Value of Long-Term Debt Recorded at Carrying Value Fair Value, by Balance Sheet Grouping [Table] Environmental remediation regulatory assets Regulatory Assets, Noncurrent, Environmental Remediation Regulatory Assets, Noncurrent, Environmental Remediation Net cash provided by financing activities Cash Provided by (Used in) Financing Activity, Including Discontinued Operation Corporate alternative minimum tax Effective Income Tax Rate Reconciliation, Corporate Alternative Minimum Tax, Percent Effective Income Tax Rate Reconciliation, Corporate Alternative Minimum Tax, Percent Measure: Measure [Axis] Total after-tax (gain)/charge Total after-tax charge Loss Contingency Accrual, Provision, after Tax Loss Contingency Accrual, Provision, after Tax 2025 Repurchase Program 2025 Repurchase Program [Member] 2025 Repurchase Program Expected remediation costs, high end of range Expected Annual Environmental Remediation Costs Over Four Years, High End of Range The high end of the range of expected remediation costs in each of the next several years. Income Tax Disclosures [Table] Income Tax Disclosures [Table] Disclosures pertaining to components of income tax expense, deferred income tax assets and liabilities, reconciliation of the reported amount of income tax expense to the amount of income tax expense that would result from applying domestic federal statutory rates to pretax income and tax uncertainties. Valuation Approach and Technique [Axis] Valuation Approach and Technique [Axis] FERC-related balancing accounts FERC Related Balancing Accounts [Member] FERC Related Balancing Accounts Other Other [Member] SCE Other balancing account that are immaterial to report individually. Pay vs Performance Disclosure, Table Pay vs Performance [Table Text Block] Other Other Regulatory Assets (Liabilities) [Member] Forgone Recovery due to Violation of Home Country Law, Amount Forgone Recovery due to Violation of Home Country Law, Amount Common stock Common Stock Including Additional Paid in Capital [Member] Entity Tax Identification Number Entity Tax Identification Number Tax credits Effective Income Tax Rate Reconciliation, Tax Credit, Percent Schedule of SCE Recovery Funding LLC on Balance Sheets Schedule of Variable Interest Entities [Table Text Block] Common stock, shares issued (in shares) Common Stock, Shares, Issued Total deferred credits and other liabilities Liabilities, Other than Long-Term Debt, Noncurrent Insurance For The Period July 1, 2022 Through June 30, 2023 Insurance For The Period July 1, 2022 Through June 30, 2023 [Member] Insurance For The Period July 1, 2022 Through June 30, 2023 Total regulatory liabilities Regulatory Liability Long-term insurance receivables Long-term insurance receivable due from affiliate Insurance Settlements Receivable, Noncurrent Contingent maximum available borrowing Line of Credit Facility Contingent Increase, Aggregate Maximum Borrowing Capacity 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. Interest expense Interest Expense, Nonoperating Trading Arrangement: Trading Arrangement [Axis] Change In Equity [Table] Change In Equity [Table] Change In Equity Total Shareholder Return Amount Total Shareholder Return Amount Commitments and Contingencies Loss Contingencies [Line Items] Security Exchange Name Security Exchange Name Jointly Owned Utility Plant [Domain] Jointly Owned Utility Plant [Domain] Condensed Consolidated Statements of Changes in Equity Statements of Changes in Equity [Text Block] The entire disclosure of Statements of Changes in Equity. Costs of removal Costs of removal [Member] Discloses the amount of regulatory liabilities related to cost of removal of assets. Accrued capital expenditures Capital Expenditures Incurred but Not yet Paid Commitment Commitment Line of Credit Facility, Maximum Borrowing Capacity Preferred stock dividends declared Dividends declared on preference stock Dividends, Preferred Stock Common stock repurchased (in shares) Stock Repurchased During Period, Shares Prepaid expenses Prepaid Expense, Current Other current liabilities Other current liabilities Other Liabilities, Current Asset Class [Domain] Asset Class [Domain] FERC-related balancing accounts FERC balancing accounts [Member] SCE balancing account to recover its' transmission costs including return on its net investment in transmission assets. Pensions and benefits Liability, Defined Benefit Plan, Noncurrent Type of Structure [Axis] Type of Structure [Axis] Type of Structure Statement [Line Items] Statement [Line Items] Rule 10b5-1 Arrangement Adopted Rule 10b5-1 Arrangement Adopted [Flag] Cash and cash equivalents Cash and Cash Equivalent Fair Value Measurement Inputs and Valuation Techniques [Table] Fair Value Measurement Inputs and Valuation Techniques [Table] Preferred stock, redemption amount Preferred Stock, Redemption Amount Gross realized losses Decommissioning Trust Realized Loss on Investments This item represents the amount of realized loss on investments in trust during the period from the sale of securities. Common stock Common Stock [Member] Net increase in cash and cash equivalents and restricted cash and cash equivalents Net increase in cash and cash equivalents and restricted cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Period Increase (Decrease), Including Exchange Rate Effect and Discontinued Operation Effect of dilutive securities (in shares) Weighted Average Number of Shares Outstanding, Diluted, Adjustment Summary of Significant Accounting Policies Significant Accounting Policies [Text Block] Statistical Measurement [Domain] Statistical Measurement [Domain] Wildfires Ignited Between January 1, 2025 And December 31, 2025 Wildfires Ignited Between January 1, 2025 And December 31, 2025 [Member] Wildfires Ignited Between January 1, 2025 And December 31, 2025 Other Current Assets Other Current Assets [Member] Schedule of Notional Volumes of Derivative Instruments Schedule of Notional Amounts of Outstanding Derivative Positions [Table Text Block] Settled Litigation Settled Litigation [Member] Multi-year credit facilities Multi-Year Credit Facilities [Member] Credit Facility Multi-Year [Member] Related Party Transaction [Axis] Related Party Transaction [Axis] Regulated Entity, Other Assets, Noncurrent [Abstract] Regulated Entity, Other Assets, Noncurrent [Abstract] Asset Class [Axis] Asset Class [Axis] Valuation Approach and Technique [Domain] Valuation Approach and Technique [Domain] Other Income, Net Other Income and Other Expense Disclosure [Text Block] Basic earnings per share: Basic earnings per share: Earnings Per Share, Basic [Abstract] Accrued unbilled revenues Unbilled Contracts Receivable Commercial Commercial [Member] Commercial Wildfire-related claims, net of insurance recoveries Increase (Decrease) In Loss Contingency Accrual Increase (Decrease) In Loss Contingency Accrual Accounts payable Increase (Decrease) in Accounts Payable Mixed Commercial/Residential And Nonresidential Commercial Structures Mixed Commercial/Residential And Nonresidential Commercial Structures [Member] Mixed Commercial/Residential And Nonresidential Commercial Structures Schedule of Contingency Accruals and Changes Schedule of Loss Contingencies by Contingency [Table Text Block] Loss contingency, number of civilian injuries Loss Contingency, Number of Civilian Injuries Number of civilian injury. Shares withheld for tax withholdings on vested equity awards Share-Based Payment Arrangement, Decrease for Tax Withholding Obligation Trading Arrangements, by Individual Trading Arrangements, by Individual [Table] Basic earnings per common share available to Edison International common shareholders (in dollars per share) Basic earnings per share (in dollars per share) Earnings Per Share, Basic Schedule of Status of the Credit Facilities Schedule of Line of Credit Facilities [Table Text Block] Commercial Paper Commercial Paper [Member] Liabilities at fair value Liabilities, Fair Value Disclosure [Abstract] Preferred stock dividends declared (in dollars per share) Dividends declared on preference stock (in dollars per share) Preferred Stock, Dividends Per Share, Declared Other comprehensive income, net of tax Other comprehensive income Other Comprehensive Income (Loss), Net of Tax Accrued unbilled revenue Unbilled Receivables, Current Short-term debt Short-Term Debt Total non-service benefit Net periodic benefit income – non-service components Defined Benefit Plan, Other Cost (Credit) Schedule of Amortized Cost and Fair Value of the Trust Investments Schedule of Available-for-Sale Securities Reconciliation [Table Text Block] Affiliated Entity Affiliated Entity [Member] Clean up over a period Maximum Expected Period for Clean Up of Identified Sites Maximum Expected Period for Clean Up of Identified Sites Customer-Funded Self-Insurance Customer-Funded Self-Insurance [Member] Customer-funded Self-insurance coverage. Award Timing MNPI Disclosure Award Timing MNPI Disclosure [Text Block] Accounts and Financing Receivables [Table] Accounts and Financing Receivables [Table] Loss contingency accrual roll forward Loss Contingency Accrual [Roll Forward] Unamortized investments, net of accumulated amortization Unamortized investments, net of accumulated amortization [Member] The unamortized amount of generation plant investments as of the balance sheet date. Derivative Instruments, Gain (Loss) [Line Items] Derivative Instruments, Gain (Loss) [Line Items] Revenue not yet approved Amount of Regulatory Revenue Not yet Approved Amount of regulatory revenue not yet approved by the regulatory authority. Maximum per incident Ownership Limit on Offsite Liability Claims from Nuclear Incident, Approximate Ownership Limit on Offsite Liability Claims from Nuclear Incident, Approximate Montecito Mudslides Montecito Mudslides [Member] Montecito Mudslides [Member] Total liabilities and equity Liabilities and Equity Public purpose and energy efficiency Public purpose and energy efficiency [Member] SCE balancing account related to specific project or programs costs that includes energy efficiency and demand-side management programs that are allowed for recovery. Derivative Instruments, Gain (Loss) [Table] Derivative Instruments, Gain (Loss) [Table] Loss contingency, wildfire insurance coverage, net Loss Contingency, Wildfire Insurance Coverage, Net Current or expected wildfire insurance coverage, net. Derivative Assets Short-Term Offsetting Derivative Assets [Abstract] Material sites Material sites [Member] Material Sites [Member] Series K Preffered Stock Series K Preffered Stock [Member] Series K Preffered Stock Accounting Policies [Abstract] Accounting Policies [Abstract] Grid Hardening Balancing Account Grid Hardening Balancing Account [Member] Grid Hardening Balancing Account Loss contingency, self insurance retention per wildfire occurrence Loss Contingency, Self Insurance Retention Per Wildfire Occurrence Current or expected self insurance per wildfire occurrence. Regulatory Assets and Liabilities Regulatory Assets and Liabilities [Line Items] -- None. No documentation exists for this element. -- Pay vs Performance Disclosure [Line Items] Derivative assets and liabilities, net Increase (Decrease) in Derivative Assets and Liabilities Investment Holdings [Table] Investment Holdings [Table] Expected recoveries from FERC customers Loss Contingency, Expected (Recovery From) Refund To FERC Customers Loss Contingency, Expected (Recovery From) Refund To FERC Customers Stock redeemed or called during period (in shares) Stock Redeemed or Called During Period, Shares Other deferred credits and other long-term liabilities Other Liabilities, Noncurrent Amounts paid to VIEs Variable Interest Entity, Measure of Activity, Purchases Loss contingency, costs to be recovered, prior to specified time, percent Loss Contingency, Costs to be Recovered, Prior to Specified Time, Percent Loss Contingency, Costs to be Recovered, Prior to Specified Time, Percent Loss contingency accrued recoveries Loss Contingency Accrued Recoveries Loss Contingency Accrued Recoveries Variable Interest Entity [Table] Variable Interest Entity [Table] Multiple Residences Multiple Residences [Member] Multiple Residences Statement of Cash Flows [Abstract] Statement of Cash Flows [Abstract] Current portion of long-term debt Current portion of long-term debt Long-Term Debt, Current Maturities Company Selected Measure Amount Company Selected Measure Amount Maximum per incident, prior events Ownership Limit on Offsite Liability Claims from Nuclear Incident, Past Events, Approximate Ownership Limit on Offsite Liability Claims from Nuclear Incident, Past Events, Approximate Comprehensive income attributable to Edison International Comprehensive Income (Loss), Net of Tax, Attributable to Parent Nuclear decommissioning trusts Decommissioning Fund Investments, Fair Value, Excluding Net Payables Decommissioning Fund Investments, Fair Value, Excluding Net Payables Name Measure Name Purchased power and fuel Utilities Operating Expense, Purchased Power and Fuel Utilities Operating Expense, Purchased Power and Fuel Equity Class of Stock [Line Items] Deferred income taxes and credits Deferred Income Tax Liabilities, Net Unsecured Debt Unsecured Debt [Member] Property-related Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Amount Derivative contracts, netting and collateral Derivative Liability, Subject to Master Netting Arrangement, Gross Asset and Collateral, Right to Reclaim Cash, Offset Carrying value Long-Term Debt Legal Entity [Axis] Legal Entity [Axis] Total assets Assets Deferred income taxes Deferred Income Tax Charge [Member] Wildfire risk mitigation and insurance Wildfire Expense Memorandum Account [Member] Wildfire Expense Memorandum Account [Member] Fine to state Loss Contingency, Fine to State Fine to be paid to the state. Regulatory Liability [Axis] Regulatory Liability [Axis] Authorized recovery threshold Authorized Recovery Threshold, Percentage Authorized Recovery Threshold, Percentage Recoveries in excess of ARO liabilities Asset Retirement Obligation Costs [Member] Cash flows from operating activities: Cash Provided by (Used in) Operating Activity, Including Discontinued Operation [Abstract] Loss contingency, maximum liability Loss Contingency, Wildfire Insurance Fund, Maximum Liability Loss Contingency, Wildfire Insurance Fund, Maximum Liability Assets at fair value Assets, Fair Value Disclosure [Abstract] Variable Interest Entities Variable Interest Entity [Line Items] Common stock dividends declared (in dollars per share) Dividends declared on common stock (in dollars per share) Common Stock, Dividends, Per Share, Declared Entity Common Stock, Shares Outstanding Entity Common Stock, Shares Outstanding 5.15% first and refunding mortgage bonds due in 2029 First and Refunding Mortgage Bonds, 5.15 Percent, Due 2029 [Member] First and Refunding Mortgage Bonds, 5.15 Percent, Due 2029 Level 2 Fair Value, Inputs, Level 2 [Member] State income tax, net of federal income tax effect Effective Income Tax Rate Reconciliation, State and Local Income Taxes, Amount Schedule of Regulatory Assets Schedule of Regulatory Assets [Table Text Block] Insider Trading Policies and Procedures Not Adopted Insider Trading Policies and Procedures Not Adopted [Text Block] Regulatory Assets and Liabilities Schedule of Regulatory Assets and Liabilities [Text Block] Property and other taxes Property and Other Taxes Property and other taxes incurred that are directly related to operations of the business during the reporting period. Unobservable inputs (in dollars per MWh) Derivative Asset (Liability) Net, Measurement Input PEO PEO [Member] Schedule of Changes in SCE's Fair Value of Level 3 Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation [Table Text Block] Fair Value Assets And Liabilities Measured On Recurring Basis Unobservable Input Reconciliation Changes in operating assets and liabilities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity, Increase (Decrease) in Operating Capital [Abstract] Noncontrolling interests – preference stock of SCE Noncontrolling Interest, Amount Represented by Preferred Stock Retained Earnings Retained Earnings [Member] Expected (recoveries from)/refund to CPUC customers Loss Contingency, Expected (Recoveries From) Refund To CPUC Customers Loss Contingency, Expected (Recoveries From) Refund To CPUC Customers Cash and cash equivalents and restricted cash and cash equivalents at beginning of period Cash and cash equivalents and restricted cash and cash equivalents at end of period Total cash and cash equivalents and restricted cash and cash equivalents Cash, Cash Equivalent, Restricted Cash, and Restricted Cash Equivalent, Continuing Operation Income Statement [Abstract] Income Statement [Abstract] Short-term investments, fair value Investments, Fair Value Disclosure Subtotal Parent [Member] Net income Net income Net income Net Income (Loss), Including Portion Attributable to Noncontrolling Interest Thomas and Koenigstein Fires and Montecito Mudslides-TKM Thomas and Koenigstein Fires and Montecito Mudslides-TKM Thomas and Koenigstein Fires and Montecito Mudslides [Member] Restatement does not require Recovery Restatement Does Not Require Recovery [Text Block] Total liabilities Liabilities, Fair Value Disclosure Organization, Consolidation and Presentation of Financial Statements [Abstract] Organization, Consolidation and Presentation of Financial Statements [Abstract] Equity AFUDC Public Utilities, Allowance for Funds Used During Construction, Capitalized Cost of Equity City Area Code City Area Code Award Timing, How MNPI Considered Award Timing, How MNPI Considered [Text Block] Total debt securities and other Debt Securities and Other [Member] Represents the information pertaining to debt securities and other. Cash flows from investing activities: Cash Provided by (Used in) Investing Activity, Including Discontinued Operation [Abstract] Pay vs Performance Disclosure Pay vs Performance Disclosure [Table] Wildfire insurance expense Wildfire Insurance Expense Wildfire Insurance Expense Related Party Transactions [Abstract] Related Party Transactions [Abstract] Collateralized mortgage obligations and other asset backed securities Collateralized Mortgage Obligations and Other Asset Backed Securities This element represents the collateralized mortgage obligations and other asset backed securities. Amortization of net loss (gain) Defined Benefit Plan, Amortization of Gain (Loss) Estimate of possible loss Loss Contingency, Estimate of Possible Loss Reversal of expected recoveries from insurance and third parties Insurance Recovery, Reversal Insurance Recovery, Reversal Amortized Costs Decommissioning Trust Assets Amortized Cost The amount of decommissioning trust assets at amortized cost as of the balance sheet date. Tax accounting memorandum account Tax accounting memorandum account and pole loading balancing account [Member] Tax Accounting Memorandum Account and Pole Loading [Member] Cash payments: Supplemental Cash Flow Information [Abstract] Assets, net of liabilities Net Regulatory Assets Incremental restoration costs related to wildfires Incremental Restoration Costs Related To Wildfires Incremental restoration costs incurred related to wildfires. Fair value of net assets at beginning of period Fair value of net assets at end of period Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis with Unobservable Inputs Other Performance Measure, Amount Other Performance Measure, Amount Government and agency securities US Treasury and Government [Member] Schedule of Cash, Cash Equivalents and Restricted Cash Restrictions on Cash and Cash Equivalents [Table Text Block] San Onofre San Onofre [Member] Jointly owned plant in connection with the generation of electricity including nuclear projects pertaining to San Onofre (nuclear). Related and Nonrelated Parties [Domain] Related and Nonrelated Parties [Domain] Amount Income Tax Expense (Benefit), Effective Income Tax Rate Reconciliation, Amount [Abstract] Other Current Liabilities Other Current Liabilities [Member] Litigation Status [Axis] Litigation Status [Axis] Derivative Instrument [Axis] Derivative Instrument [Axis] Other current assets and liabilities Increase (Decrease) in Other Current Assets and Liabilities, Net Preferred stock repurchased Preference stock redeemed Preferred stock repurchased Payments for Repurchase of Preferred Stock and Preference Stock Other Income And Expense [Table] Other Income And Expense [Table] Other Income And Expense [Table] Other current assets Other Assets, Current Entity [Domain] Entity [Domain] Net cash used in investing activities Cash Provided by (Used in) Investing Activity, Including Discontinued Operation Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table Aggregate Change in Present Value of Accumulated Benefit for All Pension Plans Reported in Summary Compensation Table [Member] Threshold before shareholder contributions Payment of Self Insurance Cost Threshold for wildfire insurance costs before shareholder contributions. Interest, net of amounts capitalized Interest Paid, Excluding Capitalized Interest, Operating Activity Document Fiscal Year Focus Document Fiscal Year Focus Immaterial sites Immaterial sites [Member] Immaterial Sites [Member] Organization and Basis of Presentation Basis of Accounting, Policy [Policy Text Block] Operating lease right-of-use assets Operating Lease, Right-of-Use Asset Amount of waived losses Loss Contingency, Waived Cost Recovery, Uninsured Losses Loss Contingency, Waived Cost Recovery, Uninsured Losses Effective tax rate Effective Income Tax Rate Reconciliation, Percent Property-related Effective Income Tax Rate Reconciliation, Nondeductible Expense, Depreciation, Percent Capital expenditures restoration amount Capital Expenditures Restoration Amount Amount of public utility's requested rate increase with regulatory agency related to capital recovery. Equity [Abstract] Equity [Abstract] Net loss on equity securities Debt and Equity Securities, Gain (Loss) Fair Value Measurements Fair Value, Assets and Liabilities Measured on Recurring and Nonrecurring Basis [Line Items] Increase (decrease) in Stockholders' Equity Increase (Decrease) in Stockholders' Equity [Roll Forward] Schedule of Pension Plans and Postretirement Benefits Other Than Pensions Schedule of Net Benefit Costs [Table Text Block] Compensation Actually Paid vs. Total Shareholder Return Compensation Actually Paid vs. Total Shareholder Return [Text Block] Estimated recoveries, received and expected to receive Estimated Recoveries, Received And Expected To Receive Estimated Recoveries, Received And Expected To Receive Legal Costs Legal Costs [Member] Legal Costs Weighted Average Weighted Average [Member] Fair Value, Recurring and Nonrecurring [Table] Fair Value, Recurring and Nonrecurring [Table] Preference stock redeemed Preference stock redeemed Stock redeemed or called during period, value Stock Redeemed or Called During Period, Value Short-term restricted cash and cash equivalents Restricted Cash and Cash Equivalent, Current Common stock repurchased Stock Repurchased During Period, Value Depreciation and amortization Depreciation, Depletion and Amortization Other Significant Noncash Transactions [Table] Other Significant Noncash Transactions [Table] Investment Location [Axis] Investment Location [Axis] Investment Location Schedule of Changes in Equity Schedule of Stockholders Equity [Table Text Block] Schedule of Regulatory Assets and Liabilities [Table] Schedule of Regulatory Assets and Liabilities [Table] A table of regulatory assets and liabilities included in the balance sheet. Arrangement Duration Trading Arrangement Duration Local Phone Number Local Phone Number Additional 402(v) Disclosure Additional 402(v) Disclosure [Text Block] Other Payment for (Proceeds from) Other Investing Activity Stock redeemed or called during period (in shares) Stock Repurchased and Retired During Period, Shares Structures damaged Loss Contingency, Structures Damaged Loss Contingency, Structures Damaged Component of Balancing Account [Domain] Component of Balancing Account [Domain] [Domain] for Component of Balancing Account [Axis] Wildfires Ignited Between January 1, 2026 And December 31, 2026 Wildfires Ignited Between January 1, 2026 And December 31, 2026 [Member] Wildfires Ignited Between January 1, 2026 And December 31, 2026 ASSETS Assets [Abstract] Underlying Security Market Price Change Underlying Security Market Price Change, Percent Debt Instrument [Axis] Debt Instrument [Axis] Compensation and Benefit Plans Retirement Benefits [Text Block] Fair Value Measurements Fair Value Disclosures [Text Block] Number of current lawsuits Loss Contingency, Number Of Lawsuits Loss Contingency, Number Of Lawsuits Equity allowance for funds used during construction Public Utilities, Allowance for Funds Used During Construction, Additions Rate Rate (as a percent) Debt Instrument, Interest Rate, Stated Percentage Operating lease liabilities Operating Lease, Liability, Noncurrent Other investments Other Long-Term Investments Derivative contracts Gross amounts recognized Derivative Asset, Subject to Master Netting Arrangement, before Offset Subsidiary of Common Parent Subsidiary of Common Parent [Member] Entity Registrant Name Entity Registrant Name Edison International Edison International [Member] Edison International Stock Price or TSR Estimation Method Stock Price or TSR Estimation Method [Text Block] Civic, political and related activities and donations Civic Political Related Activities and Donations This element represents civic, political and related activities and donations. Municipal bonds Municipal Bonds [Member] Total expense Defined Benefit Plan, Net Periodic Benefit Cost (Credit) Recovery costs after date (as a percent) Costs to be Recovered, After Specified Time, Percent Represents the percentage of costs to be recovered after specified time. Total assets Assets, Fair Value Disclosure Power Purchase Agreement Power Purchase Agreement [Member] Power Purchase Agreements Depreciation and amortization Depreciation, Decommissioning and Amortization Depreciation, Decommissioning and Amortization Unrealized holding gains, net of losses Securities, Gains Net, Cumulative Amount Amount of cumulative net holding gain on investment in security. Interest cost Defined Benefit Plan, Interest Cost Related and Nonrelated Parties [Axis] Related and Nonrelated Parties [Axis] Restatement Determination Date: Restatement Determination Date [Axis] Requested increase revenue requirement (as a percent) Public Utilities, Requested Rate Increase (Decrease), Percentage Stock-based compensation Shares Issued, Value, Share-Based Payment Arrangement, after Forfeiture Other Proceeds from (Payment for) Other Financing Activity Palo Verde (nuclear) Palo Verde (nuclear) [Member] Jointly owned plant in connection with the generation of electricity including nuclear projects pertaining to Palo Verde (nuclear). Regulatory Asset [Axis] Regulatory Asset [Axis] Name Trading Arrangement, Individual Name Jointly Owned Utility Plant [Axis] Jointly Owned Utility Plant [Axis] Debt carrying amount Amount (in millions) Debt Instrument, Face Amount CPUC-regulatory assets CPUC-Regulatory Assets [Member] CPUC-Regulatory Assets Statement of Comprehensive Income [Abstract] Statement of Comprehensive Income [Abstract] Share Repurchase Program [Axis] Share Repurchase Program [Axis] Preferred stock Preferred Stock [Member] Name Awards Close in Time to MNPI Disclosures, Individual Name Consolidated Statements of Changes in Equity Schedule of Capitalization, Equity [Line Items] Aggregate Erroneous Compensation Not Yet Determined Aggregate Erroneous Compensation Not Yet Determined [Text Block] Regulatory assets (include $3,072 and $3,092 related to a Variable Interest Entity ("VIE") at respective dates) Regulatory assets Regulatory assets: non-current Regulatory Asset, Noncurrent Recovery through customer rates Recorded Liability Incurred at Majority of Remaining Sites Through Customer Rates Represents the recorded liability incurred at majority of the remaining sites through customer rates. November 2018 Wildfires November 2018 Wildfires [Member] November 2018 Wildfires [Member] Noncash stock-based compensation APIC, Share-Based Payment Arrangement, Increase for Cost Recognition Cash collateral posted for liability Derivative Liability, Fair Value of Collateral Repurchase Agreements Repurchase Agreements [Member] Litigation Case [Axis] Litigation Case [Axis] Estimated insurance recoveries and recoveries through FERC electric rates Estimated Insurance Recoveries And Recoveries Through FERC Electric Rates Estimated Insurance Recoveries And Recoveries Through FERC Electric Rates Amount Available Line of Credit Facility, Remaining Borrowing Capacity Investments Investments in Debt and Marketable Equity Securities (and Certain Trading Assets) Disclosure [Text Block] Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Environmental Loss Contingency, Statement of Financial Position [Extensible Enumeration] Residential Structure Residential Structure [Member] Residential Structure Fair Value Hierarchy and NAV [Domain] Fair Value Hierarchy and NAV [Domain] Statement of Financial Position Location, Balance [Domain] Statement of Financial Position Location, Balance [Domain] Inventory Increase (Decrease) in Inventories Derivative additional collateral amount Derivative Asset, Subject to Master Netting Arrangement, Collateral, Obligation to Return Cash Not Offset Earnings Per Share Earnings Per Share, Policy [Policy Text Block] Nonutility property, plant and equipment, net of accumulated depreciation Accumulated Depreciation, Depletion and Amortization, Property, Plant, and Equipment Income tax expense/(benefit) Loss Contingency Accrual, Tax Provision (Benefit) Loss Contingency Accrual, Tax Provision (Benefit) Other noncurrent assets and liabilities Increase (Decrease) in Other Noncurrent Assets and Liabilities, Net Gross amounts offset in the condensed consolidated balance sheets Derivative Liability, Subject to Master Netting Arrangement, Asset Offset Fin Toll arrangements Fin Toll arrangements Fin Toll Arrangements (GWh) [Member] Fin Toll Arrangements (GWh) All Executive Categories All Executive Categories [Member] Loss contingency, cpuc cost recovery waived Loss Contingency, CPUC Cost Recovery Waived Loss Contingency, CPUC Cost Recovery Waived Common stock, no par value (800,000,000 shares authorized; 384,793,941 and 384,787,056 shares issued and outstanding at respective dates) Common stock, no par value (560,000,000 shares authorized; 434,888,104 shares issued and outstanding at respective dates) Common Stock, Value, Issued Earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Basic Commitments and contingencies (Note 12) Commitments and Contingencies Comprehensive income Comprehensive Income (Loss), Net of Tax, Including Portion Attributable to Noncontrolling Interest Wildfire Fund Prepaid Insurance [Policy Text Block] Prepaid Insurance Noncontrolling Interests Noncontrolling Interest [Member] Restricted Cash and Cash Equivalents Restricted Cash and Cash Equivalent Item [Line Items] Number of indemnification claims Loss Contingency, Number Of Indemnification Claims Loss Contingency, Number Of Indemnification Claims Coverage period Wildfire Fund, Period Of Coverage Wildfire Fund, Period Of Coverage Short-term investments and receivables/(payables) Short-Term Investments [Member] Project [Axis] Project [Axis] PEO Actually Paid Compensation Amount PEO Actually Paid Compensation Amount Diluted earnings per share: Diluted earnings per share: Earnings Per Share, Diluted [Abstract] Revenue from Contract with Customer [Abstract] Revenue from Contract with Customer [Abstract] Asset impairment and other Gain (Loss) on Sale of Assets and Asset Impairment Charges Recovery assets Recovery assets [Member] Recoverable Asset [Member] Scenario [Axis] Scenario [Axis] Pension and postretirement benefits other than pensions Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, after Tax Derivative contracts, total Net amounts presented in the condensed consolidated balance sheets Derivative Liability, Including Not Subject to Master Netting Arrangement, after Offset and Deduction Proceeds from insurance premiums collected, remaining amount authorized for collection Proceeds from Insurance Premiums Collected, Remaining Amount Authorized For Collection Proceeds from Insurance Premiums Collected, Remaining Amount Authorized For Collection Derivative Contract [Domain] Derivative Contract [Domain] All Individuals All Individuals [Member] Long-Term Debt, Type [Domain] Long-Term Debt, Type [Domain] Expected recovery from incentive mechanism (as a percent) Percentage of Environmental Remediation Costs Recoverable From Incentive Mechanism The percentage of environmental remediation costs entity will recover through incentive mechanism. Fair Value Disclosures [Abstract] Fair Value Disclosures [Abstract] Receivables Increase (Decrease) in Receivables Capital expenditures Payments to Acquire Property, Plant, and Equipment Name Forgone Recovery, Individual Name Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested Year-over-Year Change in Fair Value of Equity Awards Granted in Prior Years That are Outstanding and Unvested [Member] Wildfire Fund amortization expense Wildfire Fund, Amortization Expense Wildfire Fund, Amortization Expense Loss contingency, expected recoveries from wildfire fund Expected recoveries from Wildfire Fund Loss contingency, expected recoveries from wildfire fund Loss Contingency, Expected Recoveries From Wildfire Fund Loss Contingency, Expected Recoveries From Wildfire Fund Regulatory assets and liabilities, net Increase (Decrease) in Regulatory Assets and Liabilities Erroneous Compensation Analysis Erroneous Compensation Analysis [Text Block] Line of Credit Facility Line of Credit Facility [Line Items] Limit on retroactive premium adjustments assessment, per year Limit on Assessment of Retrospective Premium Adjustments, Per Year, Approximate The approximate maximum yearly retrospective premium adjustments that could be assessed against the entity. Rule 10b5-1 Arrangement Terminated Rule 10b5-1 Arrangement Terminated [Flag] Forecast Forecast [Member] Erroneously Awarded Compensation Recovery Erroneously Awarded Compensation Recovery [Table] Title of 12(b) Security Title of 12(b) Security Number of plaintiffs Loss Contingency, Number of Plaintiffs Natural gas options, swaps and forwards Natural Gas Options, Swaps And Forwards (Bcf) [Member] Represents the commodity derivative contracts such as options, swaps and forward arrangements for natural gas with a unit of measure of a billion cubic feet (Bcf). Other income, net Total other income, net Nonoperating Income (Expense) Contract with Customer, Sales Channel [Domain] Contract with Customer, Sales Channel [Domain] Wildfire-related claims, net of (recoveries) Loss From Catastrophes (Net Of Insurance Recoveries) Loss From Catastrophes (Net Of Insurance Recoveries) Short-Term Debt, Type [Axis] Short-Term Debt, Type [Axis] Wildfire Fund expense Wildfire Fund, Expense Wildfire Fund, Expense Unamortized losses on reacquired debt Loss on Reacquired Debt [Member] Award Timing Disclosures [Line Items] Add back: Earnings allocated to participating securities Undistributed Earnings (Loss) Allocated to Participating Securities, Diluted SCE Power Purchases Contracts SCE Power Purchases Contracts [Member] SCE Power Purchases Contracts Energy procurement related costs Energy procurement related costs [Member] SCE balancing account for fuel and power procurement-related costs. Service cost Defined Benefit Plan, Service Cost Schedule of Gains and Losses for the Trust Investments Gain (Loss) on Securities [Table Text Block] Payments for legal settlements Payments for Legal Settlements Net assets , netting and collateral Derivative, Collateral, Obligation To Return (Right To Reclaim) Cash Derivative, Collateral, Obligation To Return (Right To Reclaim) Cash Equity Equity [Text Block] Net income available to Edison International common shareholders Net income available to Edison International common shareholders Net income Net Income (Loss) Attributable to Parent Utility property, plant and equipment, net of accumulated depreciation and amortization of $15,196 and $15,060 at respective dates Utility property, plant and equipment, net of accumulated depreciation and amortization of $15,196 and $15,060 at respective dates Public Utilities, Property, Plant and Equipment, Net Expected remediation costs, low end of range Expected Annual Environmental Remediation Costs Over Four Years, Low End of Range The low end of the range of expected remediation costs in each of the next several years. Electricity options, swaps and forwards Electricity Options, Swaps And Forwards (GWh) [Member] Represents the commodity derivative contracts such as options, swaps and forward arrangements for electricity. Schedule of Reconciliation of Income Tax Expense Schedule of Effective Income Tax Rate Reconciliation [Table Text Block] Credit Loss Roll Forward Accounts Receivable, Allowance for Credit Loss [Roll Forward] Other Effective Income Tax Rate Reconciliation, Other Adjustments, Percent Restrictions on Cash and Cash Equivalents [Table] Restrictions on Cash and Cash Equivalents [Table] Preferred stock dividend requirements of Edison International Preferred Stock Dividends, Income Statement Impact, Attributable To Parent Preferred Stock Dividends, Income Statement Impact, Attributable To Parent Organization Segment Reporting Information [Line Items] Preferred stock, shares authorized (in shares) Preferred Stock, Shares Authorized Common stock repurchased Payments for Repurchase of Common Stock Adoption Date Trading Arrangement Adoption Date Receivables from contracts with customers Contract with Customer, Asset, after Allowance for Credit Loss Customer [Axis] Customer [Axis] Operating income Operating Income (Loss) Retained earnings Retained Earnings (Accumulated Deficit) Identified remediation sites (number) Number of Sites Identified for Environmental Remediation The number of identified sites which have a recorded environmental remediation liability as the costs can be estimated and are probable. Nuclear decommissioning trusts Decommissioning Fund Investments, Fair Value Proceeds from self-insurance program, additional amount authorized for collection Proceeds from Insurance Premiums Collected, Additional Amount Authorized For Collection Proceeds from Insurance Premiums Collected, Additional Amount Authorized For Collection Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested Year-end Fair Value of Equity Awards Granted in Covered Year that are Outstanding and Unvested [Member] Class of Stock [Axis] Class of Stock [Axis] Loss contingency, revenue adjustents Loss Contingency, Revenue Adjustments Loss Contingency, Revenue Adjustments Subsequent Event Type [Domain] Subsequent Event Type [Domain] Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table Aggregate Grant Date Fair Value of Equity Award Amounts Reported in Summary Compensation Table [Member] Regulatory balancing and memorandum accounts Revenue Subject to Refund [Member] Retirement Plan Type [Axis] Retirement Plan Type [Axis] Interest income and other Other Nonoperating Income (Expense) Statement [Table] Statement [Table] Adjustments to reconcile to net cash provided by operating activities: Adjustment to Reconcile Net Income to Cash Provided by (Used in) Operating Activity [Abstract] Receivables, net of allowances for uncollectible accounts of $39 and $49 at respective dates Receivables, net of allowances for uncollectible accounts of $39 and $49 at respective dates Accounts Receivable, after Allowance for Credit Loss, Noncurrent Cash flows from financing activities: Cash Provided by (Used in) Financing Activity, Including Discontinued Operation [Abstract] Additional fatalities Additional Fatalities Additional Fatalities Deferred revenue Contract with Customer, Liability All Adjustments to Compensation All Adjustments to Compensation [Member] Amendment Flag Amendment Flag Postretirement Benefits Other Than Pensions ("PBOP") Other Postretirement Benefits Plan [Member] Termination Date Trading Arrangement Termination Date Insider Trading Policies and Procedures Adopted Insider Trading Policies and Procedures Adopted [Flag] Shareholder contribution on self insurance (as a percent) Percentage of Shareholder Contribution on Self Insurance Cost Percentage of shareholder contribution on self insurance cost. Other Significant Noncash Transactions [Line Items] Other Significant Noncash Transactions [Line Items] Weighted average shares of common stock outstanding (in shares) Weighted average common shares outstanding (in shares) Weighted Average Number of Shares Outstanding, Basic Supplemental Cash Flows Information Cash Flow, Supplemental Disclosures [Text Block] Schedule of EPS Available to Edison International Common Shareholders Schedule of Earnings Per Share, Basic and Diluted [Table Text Block] Percentage of equity investments located in the United States (as a percent) Equity Investments, Percentage This element represents the percentage of equity investments located in United States. Long-term restricted cash and cash equivalents Restricted Cash and Cash Equivalent, Noncurrent Related Party Transaction [Domain] Related Party Transaction [Domain] Type of Structure [Domain] Type of Structure [Domain] Type of Structure Debt Disclosure [Abstract] Debt Disclosure [Abstract] Scenario [Domain] Scenario [Domain] Write-offs, net of recoveries Accounts Receivable, Allowance for Credit Loss, Writeoff Derivative Liabilities Short-Term Offsetting Derivative Liabilities [Abstract] Net of discount Debt Instrument, Unamortized Discount Forgone Recovery due to Expense of Enforcement, Amount Forgone Recovery due to Expense of Enforcement, Amount Consolidated Entities [Axis] Consolidated Entities [Axis] Receivables, net of allowances for uncollectible accounts Allowance for uncollectible accounts Accounts Receivable, Allowance for Credit Loss, Noncurrent Gross realized gains Decommissioning Trust Realized Gain on Investments This item represents the amount of realized gain on investments in trust during the period from the sale of securities. Loss contingency, wildfire insurance expense Loss Contingency, Wildfire Insurance Expense Loss Contingency, Wildfire Insurance Expense Total regulatory assets Regulatory Asset Net unrealized losses for equity securities Decommissioning Trust Unrealized Gains (Losses) on Investments, Net This item represents the amount of net unrealized gains (losses) on investments in trust during the period. Gross amounts offset in the condensed consolidated balance sheets Derivative Asset, Subject to Master Netting Arrangement, Liability Offset Insider Trading Arrangements [Line Items] Regulatory liabilities Regulatory liabilities: current Total current Regulatory Liability, Current Stocks Equity securities Equity Securities [Member] Total liabilities Liabilities Dividends and distribution to noncontrolling interests Payments of Ordinary Dividends, Noncontrolling Interest Settlements Fair Value, Net Derivative Asset (Liability) Measured on Recurring Basis, Unobservable Inputs Reconciliation, Settlements Pension Adjustments Prior Service Cost Pension Adjustments Prior Service Cost [Member] Total Amounts paid Loss Contingency Accrual, Payments Material Terms of Trading Arrangement Material Terms of Trading Arrangement [Text Block] Non-service cost (benefit) Defined Benefit Plan, Non-service Cost [Abstract] Defined Benefit Plan, Non-service Cost [Abstract] Operation and maintenance Utilities Operating Expense, Maintenance and Operations Common stock issued Stock Issued During Period, Value, New Issues Loss contingency, number of injured Loss Contingency, Number of Injured Loss Contingency, Number of Injured Counterparty Name [Axis] Counterparty Name [Axis] SED Settlement SED Settlement [Member] Related to the CPUC's Safety and Enforcement Division ("SED") settlement agreement. Environmental remediation Environmental Restoration Costs [Member] Entity Incorporation, State or Country Code Entity Incorporation, State or Country Code Non-NEOs Non-NEOs [Member] Thomas and Koenigstein Fires and Montecito Mudslides-TKM Thomas and Koenigstein Fires and Montecito Mudslides-TKM [Member] Thomas and Koenigstein Fires and Montecito Mudslides [Member] Preferred stock repurchased (in shares) Stock Repurchased During Period, Shares, Preferred Shares Stock Repurchased During Period, Shares, Preferred Shares