XML 37 R24.htm IDEA: XBRL DOCUMENT
v3.23.2

PENSION AND OTHER POST-EMPLOYMENT BENEFITS (Tables) | 6 Months Ended
--- | ---
Jun. 30, 2023
Retirement Benefits [Abstract] |
Schedule of Components of Net Periodic Benefit Costs | The components of FirstEnergy’s net periodic benefit costs (credits) for pension and OPEB were as follows:
Components of Net Periodic Benefit Costs (Credits) |  | Pension | OPEB
For the Three Months Ended June 30, |  | 2023 |  | 2022 |  | 2023 |  | 2022
|  | (In millions)
Service costs |  | $ | 35 |  |  | $ | 46 |  |  | $ | — |  |  | $ | 1 |
Interest costs |  | 107 |  |  | 68 |  |  | 6 |  |  | 2 |
Expected return on plan assets |  | (142) |  |  | (164) |  |  | (8) |  |  | (10) |
Amortization of prior service costs (credits) |  | 1 |  |  | — |  |  | (2) |  |  | (2) |
Special termination benefits (1) |  | 5 |  |  | — |  |  | 2 |  |  | — |
Pension and OPEB mark-to-market adjustment |  | (59) |  |  | — |  |  | — |  |  | — |
Net periodic benefit credits |  | $ | (53) |  |  | $ | (50) |  |  | $ | (2) |  |  | $ | (9) |
Net periodic benefit credits, net of amounts capitalized |  | $ | (70) |  |  | $ | (72) |  |  | $ | (3) |  |  | $ | (10) |
(1) Related to benefits provided in connection with the PEER.
Components of Net Periodic Benefit Costs (Credits) |  | Pension | OPEB
For the Six Months Ended June 30, |  | 2023 |  | 2022 |  | 2023 |  | 2022
|  | (In millions)
Service costs |  | $ | 69 |  |  | $ | 92 |  |  | $ | 1 |  |  | $ | 2 |
Interest costs |  | 216 |  |  | 136 |  |  | 11 |  |  | 5 |
Expected return on plan assets |  | (270) |  |  | (328) |  |  | (16) |  |  | (20) |
Amortization of prior service costs (credits) (1) |  | 1 |  |  | 1 |  |  | (4) |  |  | (5) |
Special termination benefits (2) |  | 5 |  |  | — |  |  | 2 |  |  | — |
Pension and OPEB mark-to-market adjustment |  | (59) |  |  | — |  |  | — |  |  | — |
Net periodic benefit credits |  | $ | (38) |  |  | $ | (99) |  |  | $ | (6) |  |  | $ | (18) |
Net periodic benefit credits, net of amounts capitalized |  | $ | (73) |  |  | $ | (141) |  |  | $ | (7) |  |  | $ | (19) |
(1) The income tax benefits associated with the pension and OPEB prior service costs amortized out of AOCI were $1 million for the six months ended June 30, 2023 and 2022. (2) Related to benefits provided in connection with the PEER.
Schedule of Assumptions Used to Determine Net Periodic Benefit Cost |
Assumption |  | Pension |  | OPEB
Effective rate for interest costs on benefit obligations(1) |  | 5.10%/4.80% |  | 5.06 | %
Effective rate for service costs(1) |  | 5.34%/5.11% |  | 5.41 | %
Effective rate for interest on service costs(1) |  | 5.22%/4.94% |  | 5.33 | %
Annual expected rate of return on plan assets |  | 8.00% |  | 7.00 | %
(1) Pension rates effective for January 1, 2023 through April 30, 2023 and May 1, 2023 through December 31, 2023, respectively.

X
- References No definition available. + Details
Name: | us-gaap_CompensationAndRetirementDisclosureAbstract
Namespace Prefix: | us-gaap_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of assumption used to determine benefit obligation and net periodic benefit cost of defined benefit plan. Includes, but is not limited to, discount rate, rate of compensation increase, expected long-term rate of return on plan assets and interest crediting rate. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 715 -SubTopic 20 -Name Accounting Standards Codification -Section 50 -Paragraph 1 -Subparagraph (k) -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfAssumptionsUsedTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration

X
- Definition Tabular disclosure of the components of net benefit costs for pension plans and/or other employee benefit plans including service cost, interest cost, expected return on plan assets, gain (loss), prior service cost or credit, transition asset or obligation, and gain (loss) recognized due to settlements or curtailments. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Topic 715 -SubTopic 20 -Subparagraph (h) -Name Accounting Standards Codification -Paragraph 1 -Section 50 -Publisher FASB -URI https://asc.fasb.org//1943274/2147480506/715-20-50-1 + Details
Name: | us-gaap_ScheduleOfNetBenefitCostsTableTextBlock
Namespace Prefix: | us-gaap_
Data Type: | dtr-types:textBlockItemType
Balance Type: | na
Period Type: | duration