Tax identification number Entity Tax Identification Number Maximum Maximum [Member] Maximum number of loans outstanding for notes receivable from participants EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding Legal Entity [Axis] Legal Entity [Axis] Statistical Measurement [Domain] Statistical Measurement [Domain] EBP, Description of Plan [Table] EBP, Description of Plan [Table] Registered Investment Companies Mutual Fund [Member] EBP, Related Party and Party-in-Interest Transactions [Table] EBP, Related Party and Party-in-Interest Transactions [Table] Period used for deduction from maximum borrowing amount for highest loan balance for notes receivable from participants EBP, Note Receivable From Participant, Account, Maximum Borrowing, Determination Of Highest Balance, Period EBP, Note Receivable From Participant, Account, Maximum Borrowing, Determination Of Highest Balance, Period EBP, Fully Benefit-Responsive Investment Contract [Table] EBP, Fully Benefit-Responsive Investment Contract [Table] Capital Preservation Fund Capital Preservation Fund [Member] Capital Preservation Fund Self-Managed Brokerage Accounts EBP, Self-Directed Brokerage Account [Member] Total deductions EBP, Change in Net Asset Available for Benefit, Decrease Maximum borrowing amount for notes receivable from participants EBP, Note Receivable from Participant, Account, Maximum Borrowing, Amount Investments and Fair Value Measurements EBP, Investment, Fair Value and NAV [Text Block] Minimum borrowing amount for notes receivable from participants EBP, Note Receivable from Participant, Account, Minimum Borrowing, Amount Administrative expenses payable EBP, Accrued Expense EBP, Fully Benefit-Responsive Investment Contract [Abstract] Investments, at fair value (see Note 5) EBP, Investment, Excluding Plan Interest in Master Trust, Fair Value Basis spread on variable rate EBP, Basis Spread on Variable Rate EBP, Basis Spread on Variable Rate Level 1 Fair Value, Inputs, Level 1 [Member] Repayment to pay the full amount in arrears EBP, Note Receivable From Participant, Repayment Period To Pay The Full Amount In Arrears EBP, Note Receivable From Participant, Repayment Period To Pay The Full Amount In Arrears Schedule of Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Table Text Block] Fully Benefit-Responsive Investment Contracts EBP, Fully Benefit-Responsive Investment Contract [Text Block] Total assets EBP, Asset Assets: EBP, Asset [Abstract] Statistical Measurement [Axis] Statistical Measurement [Axis] Additions to net assets attributed to: 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] EBP, Master Trust [Line Items] EBP, Master Trust [Line Items] Total liabilities EBP, Liability Total investment income and interest income on notes receivable from participants per the financial statements EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investments and Interest Income EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investments and Interest Income Amendment Flag Amendment Flag Participant EBP, Change in Net Asset Available for Benefit, Increase from Participant Contribution 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] Due from brokers EBP, Investment Sale, Receivable Investment interest rate EBP, Investment, Interest Rate EBP, Description of Plan and Accounting Change [Abstract] Receivables: EBP, Receivable [Abstract] EBP, Investment, Fair Value and NAV EBP, Investment, Fair Value and NAV [Table Text Block] Investments [Domain] Investments [Domain] Schedule H, line 4i - Schedule of Assets (Held at End of Year) EBP, Schedule of Asset Held for Investment [Text Block] Cover [Abstract] Adjustment from contract value to fair value for fully-benefit responsive investment contracts EBP, Reconciliation to Form 5500, Change in Net Asset Available for Benefit, Increase (Decrease) from Contract Value to Current Value Employer EBP, Change in Net Asset Available for Benefit, Increase from Employer Contribution, Cash Synthetic GICs EBP, Synthetic Investment Contract [Member] Minimum Minimum [Member] Accrued interest and dividends 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 Total contributions EBP, Change in Net Asset Available for Benefit, Increase from Contribution Net change in fair value of investments EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Gain (Loss) on Investment Interest and dividends EBP, Change in Net Asset Available for Benefit, Increase from Interest and Dividend Income on Investment EBP, Description of Plan [Line Items] EBP, Description of Plan [Line Items] Plan Number EBP, Plan Number Description of the Plan EBP, Description of Plan [Text Block] Maximum contribution to eligible compensation, percentage EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage Number of investment fund options EBP, Number of Fund Investment Options EBP, Number of Fund Investment Options 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] Adjustment from contract value to fair value for fully-benefit responsive investment contracts EBP, Reconciliation to Form 5500, Net Asset Available for Benefit, Contract Value to Current Value Adjustment EBP, Schedule of Asset Held for Investment [Line Items] EBP, Schedule of Asset Held for Investment [Line Items] Guaranteed credit rate EBP, Synthetic Investment Contract, Minimum Crediting Rate, Guaranteed EBP, Synthetic Investment Contract, Minimum Crediting Rate, Guaranteed EBP, Fair Value, Investment, NAV [Abstract] FE Common Stock EBP, Employer, Common Stock [Member] EBP, Schedule of Asset Held for Investment [Abstract] EBP, Accounting Policy [Table] EBP, Accounting Policy [Table] Investment income: EBP, Change in Net Asset Available for Benefit, Increase (Decrease) from Income (Loss) on Investment [Abstract] Investment, Identifier [Axis] Investment, Identifier [Axis] Administrative expenses EBP, Change in Net Asset Available for Benefit, Decrease from Administrative Expense Net assets available for benefits EBP, Asset Held for Investment Extended term EBP, Note Receivable From Participant, Principal Residence Maximum Term EBP, Note Receivable From Participant, Principal Residence Maximum Term Document Information [Line Items] Document Information [Line Items] Valuation reserve EBP, Investment Contract, Reserves Against Contract Value EBP, Investment Contract, Reserves Against Contract Value Cash and Cash Equivalents Interest-Bearing Deposits [Member] Period of withdraw or rollover the former participant's account EBP, Retired Or Separated Participant, Period Of Withdraw Or Rollover The Former Participant's Account EBP, Retired Or Separated Participant, Period Of Withdraw Or Rollover The Former Participant's Account Basis spread on variable rate for notes receivable from participants EBP, Participant Loan, Basis Spread On Variable Rate EBP, Participant Loan, Basis Spread On Variable Rate Percentage of participant compensation matched 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] Valuation per share of FE’s common stock (in usd per share) EBP, Valuation Per Share EBP, Valuation Per Share Investment income per Form 5500 EBP, Form 5500 Caption, Net Income (Loss) EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Fully Benefit-Responsive Investment Contract [Line Items] EBP, Tax Status [Table] EBP, Tax Status [Table] Increase in net assets available for benefits EBP, Change in Net Asset Available for Benefit, Increase (Decrease) Party-In-Interest 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 Pre-tax automatic deferral rate EBP, Participant Contribution, Automatic, Deferral Rate Investments: EBP, Investment, Fair Value [Abstract] Minimum vested balance for full distribution EBP, Retired or Separated Participant, Minimum Vested Balance For Full Distribution EBP, Retired or Separated Participant, Minimum Vested Balance For Full Distribution Distributions to participants EBP, Change in Net Asset Available for Benefit, Decrease from Payment to Participant Investments, current value 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] EBP, Statement of Net Asset Available for Benefit [Abstract] Short-term investment fund EBP, Short-Term Investment Fund [Member] EBP, Short-Term Investment Fund EBP, Accounting Policy [Line Items] EBP, Accounting Policy [Line Items] Due to brokers EBP, Liability for Investment Purchase EBP, Tax Status [Abstract] Total FE Common Stock Fund EBP, Employer, Common Stock Fund [Member] EBP, Reconciliation of Financial Statement to Form 5500 [Table] EBP, Reconciliation of Financial Statement to Form 5500 [Table] Schedule of Contract Value Between Types of Investment Contracts Held by the Plan EBP, Fully Benefit-Responsive Investment Contract [Table Text Block] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] EBP, Reconciliation of Financial Statement to Form 5500 [Line Items] Notes receivable from participants, cost EBP, Asset Held for Investment, Participant Loan, Cost EBP, Asset Held for Investment, Participant Loan, Cost Plan Expenses EBP, Expense [Policy Text Block] Reconciliation of Financial Statements to Form 5500 EBP, Reconciliation of Financial Statement to Form 5500 [Text Block] Notes receivable from participants, current value EBP, Asset Held for Investment, Participant Loan, after Deemed Distribution Investment Valuation and Income Recognition EBP, Investment [Policy Text Block] EBP, Master Trust [Table] EBP, Master Trust [Table] Document Type Document Type Plan Termination EBP, Plan Termination [Text Block] Entity Central Index Key Entity Central Index Key Interest rate for notes receivable from participants Notes receivable from participants, interest rate EBP, Asset Held for Investment, Participant Loan, Interest Rate EBP, Reconciliation of Financial Statement to Form 5500 [Abstract] Common Collective Trusts Common Collective Trust [Member] EBP, Tax Status [Line Items] EBP, Tax Status [Line Items] Deductions: EBP, Change in Net Asset Available for Benefit, Decrease [Abstract] Cash and Cash Equivalents EBP, Employer, Cash And Cash Equivalents [Member] EBP, Employer, Cash And Cash Equivalents Notes receivable from participants EBP, Note Receivable from Participant EBP 002 EBP 002 [Member] EBP 002 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 Liabilities EBP, Liability [Abstract] Tax Considerations EBP, Tax Status [Text Block] Recently Adopted Accounting Pronouncements Recently Adopted Accounting Pronouncements [Text Block] Recently Adopted Accounting Pronouncements Maximum percentage to vested balance for notes receivable from participants EBP, Note Receivable from Participant, Account, Maximum Borrowing, to Total Account, Percentage Number of investment options EBP, Number of Plan Investment Options EBP, Number of Plan Investment Options 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 Pre-tax automatic annual deferral rate increase EBP, Participant Contribution, Automatic, Annual Increase Deferral Rate Annual increase in percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) until the contribution reaches maximum threshold. Maximum borrowing term for notes receivable from participants EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term EBP, Related Party and Party-in-Interest Transactions [Line Items] EBP, Related Party and Party-in-Interest Transactions [Line Items] Net assets available for benefits Net assets available for benefits, beginning of year Net assets available for benefits, end of year Net assets available for benefits per the financial statements EBP, Net Asset Available for Benefit Total investments EBP, Investment, Excluding Plan Interest in Master Trust, Fair and Contract Value Entity [Domain] Entity [Domain] Contributions: EBP, Change in Net Asset Available for Benefit, Increase from Contribution [Abstract] Investments, at contract value (see Note 6) EBP, Investment, Excluding Plan Interest in Master Trust, Contract Value Employer contribution matching percentage EBP, Employer Contribution, Matching Percentage Net assets available for benefits per Form 5500 EBP, Form 5500 Caption, Net Assets EBP, Statement of Net Asset Available for Benefit [Line Items] EBP, Statement of Net Asset Available for Benefit [Line Items] Artisan Midcap Investor Fund Artisan Midcap Investor Fund [Member] Artisan Midcap Investor Fund