CONSOLIDATED BALANCE SHEETS (Parenthetical) - USD ($) $ in Millions |
6 Months Ended | |||
|---|---|---|---|---|
Jun. 30, 2026 |
Dec. 31, 2025 |
|||
| Receivables - | ||||
| Allowance for uncollectible accounts | $ 48 | $ 57 | ||
| Common stockholders’ equity- | ||||
| Common stock, par value (in dollars per share) | $ 0.10 | $ 0.10 | ||
| Common stock, authorized (in shares) | 700,000,000 | 700,000,000 | ||
| Common stock, outstanding (in shares) | 578,639,932 | 577,851,052 | ||
| Common stock, shares issued not disclosed | true | |||
| Assets | [1] | $ 58,221 | $ 55,904 | |
| Cash and cash equivalents | 63 | 57 | ||
| Restricted cash | 128 | 42 | ||
| Total FirstEnergy Customer Receivables | 1,667 | 1,726 | ||
| Materials and supplies, at average cost | 559 | 577 | ||
| Prepaid taxes and other | 445 | 282 | ||
| Property, plant and equipment | 46,287 | 44,413 | ||
| Goodwill | 5,618 | 5,618 | ||
| Investments | 635 | 641 | ||
| Regulatory assets | 1,357 | 829 | ||
| Other | 1,119 | 1,424 | ||
| Liabilities | [1] | 43,795 | 41,978 | |
| Currently payable long-term debt | 505 | 723 | ||
| Short-term borrowings | 1,376 | 325 | ||
| Accrued interest | 388 | 373 | ||
| Accrued taxes | 738 | 768 | ||
| Other | 287 | 287 | ||
| Long-term debt and other long-term obligations | 27,102 | 25,508 | ||
| Accumulated deferred income taxes | 6,314 | 6,032 | ||
| Regulatory liabilities | 891 | 1,185 | ||
| Other | 2,096 | 2,513 | ||
| Variable Interest Entity, Primary Beneficiary | ||||
| Common stockholders’ equity- | ||||
| Assets | 13,796 | 13,270 | ||
| Cash and cash equivalents | 10 | 8 | ||
| Restricted cash | 41 | 40 | ||
| Materials and supplies, at average cost | 1 | 1 | ||
| Prepaid taxes and other | 20 | 41 | ||
| Property, plant and equipment | 13,081 | 12,475 | ||
| Goodwill | 224 | 224 | ||
| Investments | 2 | 19 | ||
| Regulatory assets | 141 | 22 | ||
| Other | 184 | 348 | ||
| Liabilities | 10,333 | 9,933 | ||
| Currently payable long-term debt | 52 | 126 | ||
| Short-term borrowings | 275 | 245 | ||
| Accrued interest | 112 | 108 | ||
| Accrued taxes | 327 | 335 | ||
| Other | 6 | 9 | ||
| Long-term debt and other long-term obligations | 7,291 | 6,893 | ||
| Accumulated deferred income taxes | 1,623 | 1,540 | ||
| Regulatory liabilities | 478 | 346 | ||
| Other | 169 | 331 | ||
| Other | ||||
| Receivables - | ||||
| Allowance for uncollectible accounts | 11 | 11 | ||
| Customer | ||||
| Receivables - | ||||
| Allowance for uncollectible accounts | 48 | 57 | ||
| Common stockholders’ equity- | ||||
| Total FirstEnergy Customer Receivables | 1,667 | 1,726 | ||
| Customer | Variable Interest Entity, Primary Beneficiary | ||||
| Common stockholders’ equity- | ||||
| Total FirstEnergy Customer Receivables | $ 92 | $ 92 | ||
| ||||
| X | ||||||||||
- Definition Common Stock Shares Issued Not Disclosed No definition available.
|
| X | ||||||||||
- Definition Amount, after allowance for credit loss, of right to consideration from customer for product sold and service rendered in normal course of business, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of the unpaid sum of the known and estimated amounts payable to satisfy all currently due domestic and foreign income tax obligations. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of allowance for credit loss on accounts receivable, classified as current. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of asset recognized for present right to economic benefit. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of cash and cash equivalent. Cash includes, but is not limited to, currency on hand, demand deposit with financial institution, and account with general characteristic of demand deposit. Cash equivalent includes, but is not limited to, short-term, highly liquid investment that is both readily convertible to known amount of cash and so near maturity that it presents insignificant risk of change in value because of change in interest rate. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Face amount or stated value per share of common stock. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The maximum number of common shares permitted to be issued by an entity's charter and bylaws. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Number of shares of common stock outstanding. Common stock represent the ownership interest in a corporation. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount, after deferred tax asset, of deferred tax liability attributable to taxable differences with jurisdictional netting. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount, after accumulated impairment loss, of asset representing future economic benefit arising from other asset acquired in business combination or from joint venture formation or both, that is not individually identified and separately recognized. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Carrying value as of the balance sheet date of [accrued] interest payable on all forms of debt, including trade payables, that has been incurred and is unpaid. Used to reflect the current portion of the liabilities (due within one year or within the normal operating cycle if longer). Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount after valuation and LIFO reserves of inventory expected to be sold, or consumed within one year or operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of liability recognized for present obligation requiring transfer or otherwise providing economic benefit to others. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of long-term debt and lease obligation, classified as noncurrent. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of long-term debt and lease obligation, classified as current. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition The total amount of investments that are intended to be held for an extended period of time (longer than one operating cycle). Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of current assets classified as other. Reference 1: http://www.xbrl.org/2003/role/exampleRef
|
| X | ||||||||||
- Definition Amount of noncurrent assets classified as other. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due within one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Amount of liabilities classified as other, due after one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- Definition Period end amount of total net PPE. No definition available.
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Definition Carrying amount as of the balance sheet date of capitalized costs of regulated entities that are not expected to be recovered through revenue sources within one year or the normal operating cycle if longer. Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
|
| X | ||||||||||
- Definition The amount for the individual regulatory noncurrent liability as itemized in a table of regulatory noncurrent liabilities as of the end of the period. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Amount of cash restricted as to withdrawal or usage, classified as current. Cash includes, but is not limited to, currency on hand, demand deposits with banks or financial institutions, and other accounts with general characteristics of demand deposits. Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
|
| X | ||||||||||
- Definition Reflects the total carrying amount as of the balance sheet date of debt having initial terms less than one year or the normal operating cycle, if longer. Reference 1: http://www.xbrl.org/2003/role/disclosureRef
|
| X | ||||||||||
- References No definition available.
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|
| X | ||||||||||
- Details
|