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COMMITMENTS, GUARANTEES AND CONTINGENCIES - Potential Amount of Future Payments (Details) $ in Millions | Dec. 31, 2024 USD ($)
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Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | $ 923
FE's Guarantees on Behalf of its Consolidated Subsidiaries |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 495
FE's Guarantees on Other Assurances |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 428
Deferred compensation arrangements | FE's Guarantees on Behalf of its Consolidated Subsidiaries |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 406
Deferred compensation arrangements | FE's Guarantees on Other Assurances |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 97
Vehicle leases | FE's Guarantees on Behalf of its Consolidated Subsidiaries |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 75
Other | FE's Guarantees on Behalf of its Consolidated Subsidiaries |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 14
Surety Bonds |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 146
Surety Bonds | FE's Guarantees on Other Assurances |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | 161
LOCs | FE's Guarantees on Other Assurances |
Guarantor Obligations [Line Items] |
Total Guarantees and Other Assurances | $ 170

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