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v3.25.2

PENSION AND OTHER POST-EMPLOYMENT BENEFITS - Narrative (Details) employee in Thousands, $ in Millions | 1 Months Ended | 6 Months Ended
--- | --- | ---
Jan. 31, 2025 USD ($) employee | Jun. 30, 2025 USD ($) | Jun. 30, 2024 USD ($)
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Employee benefit plan funding and related payments |  | $ 24 | $ 31
JERSEY CENTRAL POWER & LIGHT COMPANY |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Employee benefit plan funding and related payments |  | $ 0 | $ 8
Pension |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Discount rate |  | 8.50% |
Expected future contributions |  | $ 300 |
Pension | JERSEY CENTRAL POWER & LIGHT COMPANY |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Expected future contributions |  | $ 0 |
Pension | MetLife |  |  |
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items] |  |  |
Transfer of plan assets | $ 640 |  |
Transfer of benefit obligations | $ 652 |  |
Defined benefit plan, number of covered employees by plan | employee | 2 |  |

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- Definition Weighted average rate for present value of future retirement benefits cash flows, used to determine net periodic benefit cost of defined benefit plan. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 5 -Subparagraph (j)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-5 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147480506/715-20-50-1 + Details
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