PENSION AND OTHER POST-EMPLOYMENT BENEFITS (Tables)

3 Months Ended

Mar. 31, 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 March 31,	2023		2022		2023		2022
	(In millions)
Service costs	$	34	$	46	$	1	$	1
Interest costs	109		68		5		3
Expected return on plan assets	(128)		(164)		(8)		(10)
Amortization of prior service costs (credits) (1)	—		1		(2)		(3)
Net periodic benefit costs (credits)	$	15	$	(49)	$	(4)	$	(9)
Net periodic benefit credits, net of amounts capitalized	$	(3)	$	(69)	$	(4)	$	(9)

(1) The income tax benefits associated with pension and OPEB prior service costs amortized out of AOCI were $1 million for the three months ended March 31, 2023 and 2022.