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ORGANIZATION AND BASIS OF PRESENTATION (Tables) | 12 Months Ended
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Dec. 31, 2024
Organization, Consolidation and Presentation of Financial Statements [Abstract] |
Schedule of Regulatory Assets on the Balance Sheets | The following table provides information about the composition of net regulatory assets and liabilities as of December 31, 2024 and 2023, and the changes during the year 2024:
|  | As of December 31,
Net Regulatory Assets (Liabilities) by Source |  | 2024 |  | 2023 |  | Change
|  | (In millions)
Customer payables for future income taxes |  | $ | (2,234) |  |  | $ | (2,382) |  |  | $ | 148 |
Spent nuclear fuel disposal costs |  | (72) |  |  | (83) |  |  | 11 |
Asset removal costs |  | (681) |  |  | (652) |  |  | (29) |
Deferred transmission costs |  | 190 |  |  | 286 |  |  | (96) |
Deferred generation costs |  | 481 |  |  | 572 |  |  | (91) |
Deferred distribution costs |  | 287 |  |  | 247 |  |  | 40 |
Storm-related costs |  | 1,015 |  |  | 799 |  |  | 216 |
Energy efficiency program costs |  | 349 |  |  | 198 |  |  | 151 |
New Jersey societal benefit costs |  | 87 |  |  | 79 |  |  | 8 |
Vegetation management |  | 125 |  |  | 102 |  |  | 23 |
Other |  | 75 |  |  | (11) |  |  | 86 |
Net Regulatory Liabilities included on the Consolidated Balance Sheets |  | $ | (378) |  |  | $ | (845) |  |  | $ | 467 |
The following table provides information about the composition of net regulatory assets that do not earn a current return as of December 31, 2024 and 2023, of which approximately $698 million and $371 million, respectively, are currently being recovered through rates over varying periods, through 2068, depending on the nature of the deferral and the jurisdiction:
Regulatory Assets by Source Not Earning a |  | As of December 31,
Current Return |  | 2024 |  | 2023 |  | Change
|  |  |  | (In millions) |  |
Deferred transmission costs |  | $ | 8 |  |  | $ | 6 |  |  | $ | 2 |
Deferred generation costs |  | 314 |  |  | 432 |  |  | (118) |
Deferred distribution costs |  | 153 |  |  | 68 |  |  | 85 |
Storm-related costs |  | 694 |  |  | 602 |  |  | 92 |
Vegetation management |  | 16 |  |  | 21 |  |  | (5) |
Other |  | 58 |  |  | 68 |  |  | (10) |
Regulatory Assets Not Earning a Current Return |  | $ | 1,243 |  |  | $ | 1,197 |  |  | $ | 46 |
Schedule of Goodwill | The following table presents goodwill by reporting unit as of December 31, 2024 and 2023:
(In millions) |  | Distribution Segment |  | Integrated Segment |  | Stand-Alone Transmission Segment | FirstEnergy Consolidated
Goodwill |  | $ | 3,222 |  |  | $ | 1,953 |  |  | $ | 443 |  | $ | 5,618 |
Schedule of Property, Plant and Equipment Balances | Property, plant and equipment balances by segment as of December 31, 2024 and 2023, were as follows:
December 31, 2024
Segment |  | In Service(1) |  | Accum. Depr.(2) |  | Net Plant |  | CWIP |  | Total |  | Average Service Life
|  | (In millions) |  | (years)
Distribution |  | $ | 21,245 |  |  | $ | (7,338) |  |  | $ | 13,907 |  |  | $ | 618 |  |  | $ | 14,525 |  |  | 5 - 80
Integrated |  | 17,080 |  |  | (3,943) |  |  | 13,137 |  |  | 1,076 |  |  | 14,213 |  |  | 5 - 100
Stand-Alone Transmission |  | 13,509 |  |  | (2,660) |  |  | 10,849 |  |  | 986 |  |  | 11,835 |  |  | 5 - 85
Corporate/Other |  | 1,062 |  |  | (607) |  |  | 455 |  |  | 74 |  |  | 529 |  |  | 3 - 63
Total Property, Plant and Equipment |  | $ | 52,896 |  |  | $ | (14,548) |  |  | $ | 38,348 |  |  | $ | 2,754 |  |  | $ | 41,102 |  |  |
December 31, 2023
Segment |  | In Service(1) |  | Accum. Depr.(2) |  | Net Plant |  | CWIP |  | Total |  | Average Service Life
|  | (In millions) |  | (years)
Distribution |  | $ | 20,423 |  |  | $ | (7,008) |  |  | $ | 13,415 |  |  | $ | 417 |  |  | $ | 13,832 |  |  | 5 - 80
Integrated |  | 16,180 |  |  | (3,748) |  |  | 12,432 |  |  | 823 |  |  | 13,255 |  |  | 5 - 100
Stand-Alone Transmission |  | 12,388 |  |  | (2,461) |  |  | 9,927 |  |  | 828 |  |  | 10,755 |  |  | 5 - 85
Corporate/Other |  | 1,116 |  |  | (594) |  |  | 522 |  |  | 48 |  |  | 570 |  |  | 3 - 63
Total Property, Plant and Equipment |  | $ | 50,107 |  |  | $ | (13,811) |  |  | $ | 36,296 |  |  | $ | 2,116 |  |  | $ | 38,412 |  |  |
(1) Includes finance leases of $46 million and $68 million as of December 31, 2024 and 2023, respectively. (2) Includes finance lease accumulated amortization of $14 million and $33 million as of December 31, 2024 and 2023, respectively.

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