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REVENUE (Tables) | 3 Months Ended
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Mar. 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 three months ended March 31, 2023 and 2022:
| Three Months Ended March 31 |  |
(In millions) | 2023 |  | 2022 |  |  |  |
Regulated Distribution |  |  |  |  |  |  |
Retail generation and distribution services |  |  |  |  |  |  |
Residential | $ | 1,702 |  |  | $ | 1,542 |  |  |  |  |
Commercial | 645 |  |  | 597 |  |  |  |  |
Industrial | 353 |  |  | 283 |  |  |  |  |
Other | 25 |  |  | 20 |  |  |  |  |
Wholesale | 47 |  | 90 |  |  |  |
Other revenue from contracts with customers | 24 |  | 26 |  |  |  |
Total revenues from contracts with customers | 2,796 |  |  | 2,558 |  |  |  |  |
Other revenue unrelated to contracts with customers | 30 |  | 31 |  |  |  |
Total Regulated Distribution | $ | 2,826 |  |  | $ | 2,589 |  |  |  |  |
Regulated Transmission |  |  |  |  |  |  |
ATSI | $ | 226 |  |  | $ | 217 |  |  |  |  |
TrAIL | 66 |  |  | 63 |  |  |  |  |
MAIT | 89 |  |  | 79 |  |  |  |  |
JCP&L | 43 |  |  | 60 |  |  |  |  |
MP, PE and WP | 36 |  | 32 |  |  |  |
Total revenues from contracts with customers | 460 |  |  | 451 |  |  |  |  |
Other revenue unrelated to contracts with customers | 1 |  |  | 2 |  |  |  |  |
Total Regulated Transmission | $ | 461 |  |  | $ | 453 |  |  |  |  |
Corporate/Other and Reconciling Adjustments (1) |  |  |  |  |  |  |
Wholesale | $ | 2 |  |  | $ | 6 |  |  |  |  |
Retail generation and distribution services (1) | (45) |  |  | (45) |  |  |  |  |
Other revenue unrelated to contracts with customers (1) | (13) |  |  | (14) |  |  |  |  |
Total Corporate/Other and Reconciling | $ | (56) |  |  | $ | (53) |  |  |  |  |
FirstEnergy Total Revenues | $ | 3,231 |  |  | $ | 2,989 |  |  |  |  |
. (1) Includes eliminations and reconciling adjustments of inter-segment revenues.
Schedule of Receivables from customers | Billed and unbilled customer receivables as of March 31, 2023 and December 31, 2022, are included below.
Customer Receivables |  | March 31, 2023 |  | December 31, 2022 |
|  | (In millions)
Billed |  | $ | 752 |  |  | $ | 674 |  |
Unbilled |  | 631 |  |  | 781 |  |
|  | 1,383 |  |  | 1,455 |  |
Less: Uncollectible Reserve |  | 124 |  |  | 137 |  |
Total Customer Receivables |  | $ | 1,259 |  |  | $ | 1,318 |  |
Schedule of Activity in the allowance for uncollectible accounts on customer receivables | Activity in the allowance for uncollectible accounts on customer receivables for the three months ended March 31, 2023 and for the year ended December 31, 2022 are as follows:
|  | (In millions)
Balance, January 1, 2022 |  | $ | 159 |
Provision for expected credit losses (1) |  | 59 |
Charged to other accounts (2) |  | 62 |
Write-offs |  | (143) |
Balance, December 31, 2022 |  | $ | 137 |
Provision for expected credit losses (1) |  | 10 |
Charged to other accounts (2) |  | 23 |
Write-offs |  | (46) |
Balance, March 31, 2023 |  | $ | 124 |
(1) Approximately $11 million of which was deferred for future recovery in the twelve months ended December 31, 2022. An immaterial amount was deferred for future refund in the first quarter of 2023. (2) Represents recoveries and reinstatements of accounts written off for uncollectible accounts.

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