Description of the Plan (Details) - EBP 002	12 Months Ended
Dec. 31, 2025 USD ($) loan investment $ / shares	Dec. 31, 2024 $ / shares
EBP, Description of Plan [Line Items]
Pre-tax automatic deferral rate	6.00%
Pre-tax automatic annual deferral rate increase	1.00%
Percentage of participant compensation matched	6.00%
Employer contribution matching percentage	50.00%
Number of investment fund options \| investment	9
Number of investment options \| investment	15
Valuation per share of FE’s common stock (in usd per share) \| $ / shares		$ 39.78
Maximum percentage to vested balance for notes receivable from participants	50.00%
Maximum borrowing amount for notes receivable from participants \| $	$ 50,000
Period used for deduction from maximum borrowing amount for highest loan balance for notes receivable from participants	12 months
Basis spread on variable rate for notes receivable from participants	1.00%
Maximum number of loans outstanding for notes receivable from participants \| loan	2
Minimum borrowing amount for notes receivable from participants \| $	$ 1,000
Extended term	30 years
Repayment to pay the full amount in arrears	90 days
Period of withdraw or rollover the former participant's account	180 days
Minimum vested balance for full distribution \| $	$ 1,000
Total FE Common Stock Fund
EBP, Description of Plan [Line Items]
Valuation per share of FE’s common stock (in usd per share) \| $ / shares	$ 54.50	$ 48.46
FE Common Stock
EBP, Description of Plan [Line Items]
Valuation per share of FE’s common stock (in usd per share) \| $ / shares	$ 44.77
Minimum
EBP, Description of Plan [Line Items]
Maximum contribution to eligible compensation, percentage	1.00%
Interest rate for notes receivable from participants	4.25%
Maximum borrowing term for notes receivable from participants	6 months
Maximum
EBP, Description of Plan [Line Items]
Pre-tax automatic deferral rate	10.00%
Maximum contribution to eligible compensation, percentage	75.00%
Interest rate for notes receivable from participants	9.75%
Maximum borrowing term for notes receivable from participants	60 months

EBP, Note Receivable From Participant, Account, Maximum Borrowing, Determination Of Highest Balance, Period

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- Definition

EBP, Note Receivable From Participant, General Loan, Maximum Borrowing Term

+ References

No definition available.

+ Details

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- Definition

EBP, Note Receivable From Participant, Maximum Number Of Loans Outstanding

+ References

No definition available.

+ Details

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- Definition

EBP, Note Receivable From Participant, Principal Residence Maximum Term

+ References

No definition available.

+ Details

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- Definition

EBP, Note Receivable From Participant, Repayment Period To Pay The Full Amount In Arrears

+ References

No definition available.

+ Details

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- Definition

EBP, Number of Fund Investment Options

+ References

No definition available.

+ Details

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- Definition

EBP, Number of Plan Investment Options

+ References

No definition available.

+ Details

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- Definition

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.

+ References

No definition available.

+ Details

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- Definition

EBP, Participant Contribution, Maximum Contribution to Eligible Compensation, Percentage

+ References

No definition available.

+ Details

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- Definition

EBP, Participant Loan, Basis Spread On Variable Rate

+ References

No definition available.

+ Details

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Period Type:	duration

- Definition

EBP, Retired or Separated Participant, Minimum Vested Balance For Full Distribution

+ References

No definition available.

+ Details

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Period Type:	instant

- Definition

EBP, Retired Or Separated Participant, Period Of Withdraw Or Rollover The Former Participant's Account

+ References

No definition available.

+ Details

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- Definition

EBP, Valuation Per Share

+ References

No definition available.

+ Details

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- Definition

Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section 50
-Paragraph 1
-Subparagraph (a)
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478416/962-205-50-1

+ Details

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- Definition

Percentage of employer matching contribution on eligible participant contribution to employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2003/role/exampleRef
-Topic 962
-SubTopic 325
-Name Accounting Standards Codification
-Section 55
-Paragraph 17
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147478873/962-325-55-17

+ Details

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- Definition

Percentage of participant compensation eligible for employer matching contribution for participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Period Type:	duration

- Definition

Amount of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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- Definition

Percentage of maximum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow to total participant account balance.

+ References

+ Details

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- Definition

Amount of minimum account balance that participant in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)) can borrow.

+ References

+ Details

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Period Type:	instant

- Definition

Percentage of eligible compensation contributed for participant automatically enrolled in employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

+ Details

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Period Type:	duration

- Definition

Interest rate on participant loan in schedule of asset held for investment of employee stock purchase, saving, or similar plan (employee benefit plan (EBP)).

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name Employee Retirement Income Security Act of 1974
-Number 2520
-Section 103
-Subsection 10
-Paragraph b
-Subparagraph (1)(i)(D)
-Publisher DOL-EBSA

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Topic 962
-SubTopic 205
-Name Accounting Standards Codification
-Section S99
-Paragraph 1
-Subparagraph (SX 210.6A-05(a)(Schedule I))
-Publisher FASB
-URI https://asc.fasb.org/1943274/2147477804/962-205-S99-1

+ Details

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- Details

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- Details

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