v3.25.1
PENSION AND OTHER POST-EMPLOYMENT BENEFITS (Tables)
 3 Months Ended
Mar. 31, 2025
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:
FirstEnergy Components of Net Periodic Benefit Costs (Credits)PensionOPEB
For the Three Months Ended March 31, 2025202420252024
 (In millions)
Service costs $33 $35 $1 $1 
Interest costs 93 99 5 5 
Expected return on plan assets(115)(133)$(10)(8)
Amortization of prior service costs (credits)— 1 — (1)
Net periodic benefit costs (credits)$11 $2 $(4)$(3)
Net periodic benefit credits, net of amounts capitalized $(6)$(15)$(4)$(4)
JCP&L’s net periodic benefit costs (credits) for pension and OPEB were as follows:
PensionOPEB
For the Three Months Ended March 31, 2025202420252024
(In millions)
JCP&L's share of net periodic benefit credits(1)
$(1)$(1)$(4)$(3)
(1) Includes amounts capitalized