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REVENUE (Tables) | 12 Months Ended
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Dec. 31, 2024
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, 2024, 2023 and 2022:
|  | For the Years Ended December 31,
(In millions) |  | 2024 |  | 2023 |  | 2022
Distribution |  |  |  |  |  |
Retail generation and distribution services(1) |  |  |  |  |  |
Residential |  | $ | 4,514 |  |  | $ | 4,344 |  |  | $ | 3,954 |
Commercial |  | 1,522 |  |  | 1,528 |  |  | 1,432 |
Industrial |  | 588 |  |  | 726 |  |  | 806 |
Other |  | 73 |  |  | 72 |  |  | 56 |
Wholesale |  | 6 |  |  | 20 |  |  | 19 |
Other revenue from contracts with customers (2) |  | 80 |  |  | 89 |  |  | 86 |
Total revenues from contracts with customers |  | 6,783 |  |  | 6,779 |  |  | 6,353 |
Other revenue unrelated to contracts with customers (3) |  | 80 |  |  | 75 |  |  | 72 |
Total Distribution |  | $ | 6,863 |  |  | $ | 6,854 |  |  | $ | 6,425 |
Integrated |  |  |  |  |  |
Retail generation and distribution services |  |  |  |  |  |
Residential |  | $ | 2,528 |  |  | $ | 2,137 |  |  | $ | 2,121 |
Commercial |  | 1,142 |  |  | 1,023 |  |  | 1,016 |
Industrial |  | 577 |  |  | 545 |  |  | 505 |
Other |  | 32 |  |  | 30 |  |  | 26 |
Wholesale |  | 146 |  |  | 208 |  |  | 475 |
Transmission |  | 380 |  |  | 318 |  |  | 282 |
Other revenue from contracts with customers(4) |  | 19 |  |  | 24 |  |  | 17 |
Total revenues from contracts with customers |  | 4,824 |  |  | 4,285 |  |  | 4,442 |
ARP (4) |  | 10 |  |  | — |  |  | — |
Other revenue unrelated to contracts with customers(3) |  | 42 |  |  | 35 |  |  | 28 |
Total Integrated |  | $ | 4,876 |  |  | $ | 4,320 |  |  | $ | 4,470 |
Stand-Alone Transmission |  |  |  |  |  |
ATSI |  | $ | 980 |  |  | $ | 967 |  |  | $ | 911 |
TrAIL |  | 269 |  |  | 279 |  |  | 270 |
MAIT |  | 436 |  |  | 394 |  |  | 340 |
KATCo |  | 85 |  |  | 89 |  |  | 59 |
Other |  | (2) |  |  | 2 |  |  | 1 |
Total revenues from contracts with customers |  | 1,768 |  |  | 1,731 |  |  | 1,581 |
Other revenue unrelated to contracts with customers |  | 19 |  |  | 17 |  |  | 16 |
Total Stand-Alone Transmission |  | $ | 1,787 |  |  | $ | 1,748 |  |  | $ | 1,597 |
Corporate/Other, Eliminations and Reconciling Adjustments (5) |  |  |  |  |  |
Wholesale |  | $ | 9 |  |  | $ | 11 |  |  | $ | 27 |
Eliminations and reconciling adjustments |  | (63) |  |  | (63) |  |  | (60) |
Total Corporate/Other, Eliminations and Reconciling Adjustments |  | $ | (54) |  |  | $ | (52) |  |  | $ | (33) |
FirstEnergy Total Revenues |  | $ | 13,472 |  |  | $ | 12,870 |  |  | $ | 12,459 |
(1) Includes approximately $58 million as of December 31, 2022 of customer refunds associated with the Ohio Stipulation that became effective in December 2021. (2) Primarily includes amounts collected from customers to administer and repay securitization bonds and pole attachment revenue. (3) Primarily includes late payment charges and revenue from FTRs. (4) Related to lost distribution revenues associated with energy efficiency in New Jersey. (5) Includes eliminations and reconciling adjustments of inter-segment revenues.
Schedule of Receivables from customers | Billed and unbilled customer receivables as of December 31, 2024 and 2023, are included below.
|  | As of December 31,
Customer Receivables |  | 2024 |  | 2023 |
|  | (In millions)
Billed(1) |  | $ | 867 |  |  | $ | 717 |  |
Unbilled |  | 718 |  |  | 665 |  |
|  | 1,585 |  |  | 1,382 |  |
Less: Uncollectible Reserve |  | 55 |  |  | 64 |  |
Total Customer Receivables |  | $ | 1,530 |  |  | $ | 1,318 |  |
(1) Includes approximately $284 million and $288 million as of December 31, 2024 and 2023, 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, 2024, 2023 and 2022 are as follows:
(In millions) |  | 2024 |  | 2023 |  | 2022
Customer Receivables: |  |  |  |  |  |
Beginning of year balance |  | $ | 64 |  |  | $ | 137 |  |  | $ | 159 |
Charged to income(1) |  | 73 |  |  | 8 |  |  | 59 |
Charged to other accounts(2) |  | 39 |  |  | 34 |  |  | 62 |
Write-offs |  | (121) |  |  | (115) |  |  | (143) |
End of year balance |  | $ | 55 |  |  | $ | 64 |  |  | $ | 137 |
Other Receivables: |  |  |  |  |  |
Beginning of year balance |  | $ | 15 |  |  | $ | 11 |  |  | $ | 10 |
Charged to income |  | 1 |  |  | 7 |  |  | 4 |
Charged to other accounts(2) |  | (5) |  |  | (1) |  |  | 4 |
Write-offs |  | (5) |  |  | (2) |  |  | (7) |
End of year balance |  | $ | 6 |  |  | $ | 15 |  |  | $ | 11 |
(1) Customer receivable amounts charged (credited) to income for the years ended December 31, 2024, 2023, and 2022, include approximately $17 million, $(15) million, and $11 million, respectively, deferred for future recovery (refund). (2) Represents recoveries and reinstatements of accounts previously written off for uncollectible accounts.

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