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Statements of Appropriation of Retained Earnings (Disposition of Deficit) (Tables) | 12 Months Ended
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Dec. 31, 2024
Statement of Appropriation of Retained Earnings [Abstract] |
Statements of Appropriation of Retained Earnings (Disposition of Deficit) | Statements of disposition of deficit of KEPCO, the controlling company, for the years ended December 31, 2023 and 2024, respectively, are as follows:
|  |  |  |  | 2023 |  |  | 2024 |
|  |  |  |  | In millions of won except for dividends per share |
I.   Unappropriated retained earnings (undisposed deficits) |  |  |  |  |  |  |  |  |  |  |  |
Unappropriated retained earnings (undisposed deficits) carried over from prior years |  | ￦ |  |  |  |  | — |  |  |  | — |
Net income (loss) |  |  |  |  |  |  | (3,249,233 | ) |  |  | 829,339 |
Remeasurement of the defined benefit plan |  |  |  |  |  |  | (149,474 | ) |  |  | (125,132 | )
|  |  |  |  |  |  | (3,398,707 | ) |  |  | 704,207 |
II. Transfer from voluntary reserves |  |  |  |  |  |  | 3,398,707 |  |  |  | — |
III.  Subtotal (I+II) |  |  |  |  |  |  | — |  |  |  | 704,207 |
IV.  Appropriation of retained earnings |  |  |  |  |  |  |  |  |  |  |  |
Dividends |  |  |  |  |  |  | — |  |  |  | (136,738 | )
Voluntary reserves |  |  |  |  |  |  | — |  |  |  | (567,469 | )
|  |  |  |  |  |  | — |  |  |  | (704,207 | )
V. Unappropriated retained earnings (undisposed deficits) to be carried over forward to subsequent year |  |  |  |  |  |  | — |  |  |  | — |

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