REVENUE (Tables)

12 Months Ended

Dec. 31, 2023

Revenue from Contract with Customer [Abstract]

Schedule of Disaggregation of Revenue

The following represents a disaggregation of revenue from contracts with customers for the years ended December 31, 2023, 2022 and 2021:

	For the Years Ended December 31,
(In millions)	2023		2022		2021
Regulated Distribution
Retail generation and distribution services(1)
Residential	$	6,583	$	6,180	$	5,713
Commercial	2,600		2,499		2,284
Industrial	1,298		1,338		1,091
Street lighting/Other	105		85		75
Wholesale	228		494		362
Other revenue from contracts with customers(2)	113		104		119
Total revenues from contracts with customers	10,927		10,700		9,644
Alternative Revenue Program(3)	—		—		(27)
Other revenue unrelated to contracts with customers(4)	111		101		94
Total Regulated Distribution	$	11,038	$	10,801	$	9,711
Regulated Transmission
ATSI	$	968	$	912	$	799
TrAIL	279		270		233
MAIT	395		340		288
JCP&L	205		203		164
MP, PE and WP	202		138		124
Total revenues from contracts with customers	2,049		1,863		1,608
Other revenue unrelated to contracts with customers	5		5		10
Total Regulated Transmission	$	2,054	$	1,868	$	1,618
Corporate/Other and Reconciling Adjustments(5)
Wholesale	$	11	$	27	$	14
Retail generation and distribution services(5)	(181)		(186)		(154)
Other revenue unrelated to contracts with customers(5)	(52)		(51)		(57)
Total Corporate/Other and Reconciling	$	(222)	$	(210)	$	(197)
FirstEnergy Total Revenues	$	12,870	$	12,459	$	11,132

(1) Includes approximately $58 million and $38 million as of December 31, 2022 and 2021, respectively, of customer refunds associated with the Ohio Stipulation that became effective in December 2021. See Note 13, “Regulatory Matters,” for further discussion.

(2) Primarily includes amounts collected from customers to administer and repay securitization bonds and pole attachment revenue.

(3) Reflects amount the Ohio Companies refunded to customers that was previously collected under decoupling mechanisms, with interest.

(4) Primarily includes late payment charges and revenue from derivatives.

(5) Includes eliminations and reconciling adjustments of inter-segment revenues.

Schedule of Receivables from customers

Billed and unbilled customer receivables as of December 31, 2023 and 2022, are included below.

	As of December 31,
Customer Receivables	2023		2022
	(In millions)
Billed(1)	$	717	$	674
Unbilled	665		781
	1,382		1,455
Less: Uncollectible Reserve	64		137
Total Customer Receivables	$	1,318	$	1,318

(1) Includes approximately $288 million and $290 million as of December 31, 2023 and 2022, respectively, that are past due by greater than 30 days.

Schedule of Activity in the allowance for uncollectible accounts on customer receivables

Activity in the allowance for uncollectible accounts on receivables for the years ended December 31, 2023, 2022 and 2021 are as follows:

(In millions)	2023		2022		2021
Customer Receivables:
Beginning of year balance	$	137	$	159	$	164
Charged to income(1)	8		59		54
Charged to other accounts(2)	34		62		42
Write-offs	(115)		(143)		(101)
End of year balance	$	64	$	137	$	159
Other Receivables:
Beginning of year balance	$	11	$	10	$	26
Charged to income	7		4		3
Charged to other accounts(2)	(1)		4		3
Write-offs	(2)		(7)		(22)
End of year balance	$	15	$	11	$	10

(1) Customer receivable amounts charged to income for the years ended December 31, 2023, 2022, and 2021, include approximately $(15) million, $11 million, and $12 million, respectively, deferred for future recovery (refund).

(2) Represents recoveries and reinstatements of accounts previously written off for uncollectible accounts.