STOCK-BASED COMPENSATION PLANS (Tables)

12 Months Ended

Dec. 31, 2022

Share-Based Payment Arrangement [Abstract]

Schedule of Stock-based Compensation Expense

Stock-based compensation costs and the amount of stock-based compensation costs capitalized related to FirstEnergy plans for the years ended December 31, 2022, 2021 and 2020, are included in the following tables:

	For the Years Ended December 31,
Stock-based Compensation Plan	2022		2021		2020
	(In millions)
Restricted stock units	$	55	$	40	$	22
Restricted stock	3		2		1
401(k) savings plan	36		35		33
EDCP & DCPD	7		13		(5)
Total	$	101	$	90	$	51
Stock-based compensation costs, net of amounts capitalized	$	54	$	43	$	25

Schedule of Nonvested Restricted Stock Units Activity

Restricted stock unit activity for the year ended December 31, 2022, was as follows:

Restricted Stock Unit Activity	Shares (in millions)	Weighted-Average Grant Date Fair Value (per share)
Nonvested as of January 1, 2022	1.8	$	41.89
Granted in 2022	1.0	41.19
Forfeited in 2022	(0.3)	39.58
Vested in 2022(1)	(0.6)	41.57
Nonvested as of December 31, 2022	1.9	$	41.57

(1) Excludes dividend equivalents of approximately 80 thousand shares earned during vesting period