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Statements of Appropriation of Retained Earnings (Disposition of Deficit) (Tables) | 12 Months Ended
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Dec. 31, 2023
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, 2022 and 2023, respectively, are as follows:
|  |  |  |  | 2022 |  |  | 2023 |
|  |  |  |  | In millions of won except for dividends per share |
I.   Deficit before disposition |  |  |  |  |  |  |  |  |  |  |  |
Undisposed deficit carried over from prior years |  | ￦ |  |  |  |  | — |  |  |  | — |
Net loss |  |  |  |  |  |  | (25,297,713 | ) |  |  | (3,249,233 | )
Remeasurement of the defined benefit plan |  |  |  |  |  |  | 327,056 |  |  |  | (149,474 | )
|  |  |  |  |  |  | (24,970,657 | ) |  |  | (3,398,707 | )
II. Transfer from voluntary reserves |  |  |  |  |  |  | 24,970,657 |  |  |  | 2,812,314 |
III.  Subtotal (I+II) |  |  |  |  |  |  | — |  |  |  | (586,393 | )
IV.  Disposition of deficit |  |  |  |  |  |  | — |  |  |  | 586,393 |
V. Undisposed deficit to be carried over forward to subsequent year |  |  |  |  |  |  | — |  |  |  | — |

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