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Statements of Appropriation of Retained Earnings (Disposition of Deficit) (Tables) | 12 Months Ended
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Dec. 31, 2021
Statement of Appropriation of Retained Earnings [Abstract] |
Statements of Appropriation of Retained Earnings (Disposition of Deficit) | The statements of disposition of deficit and appropriation of retained earnings of KEPCO, the controlling company, for the years ended December 31, 2020 and 2021, respectively, are as follows:
|  |  |  |  | 2020 |  |  | 2021 |
|  |  |  |  | In millions of won except for dividends per share |
I.   Retained earnings before appropriations (undisposed deficit) |  |  |  |  |  |  |  |  |  |  |  |
Unappropriated retained earnings (deficit) carried over from prior years |  | ￦ |  |  |  |  | — |  |  |  | — |
Net income (loss) |  |  |  |  |  |  | 1,951,498 |  |  |  | (5,607,732 | )
Remeasurement of the defined benefit plan |  |  |  |  |  |  | (67,118 | ) |  |  | 107,884 |
|  |  |  |  |  |  | 1,884,380 |  |  |  | (5,499,848 | )
II. Transfer from voluntary reserves |  |  |  |  |  |  | — |  |  |  | 5,499,848 |
III.  Subtotal ( I+II ) |  |  |  |  |  |  | 1,884,380 |  |  |  | — |
IV.  Appropriations of retained earnings (Disposition of deficit) |  |  |  |  |  |  |  |  |  |  |  |
Legal reserve |  |  |  |  |  |  | — |  |  |  | — |
Dividends (government, individual) (Amount of dividends per share (%) : Current year – ￦ 0 (0%), Prior year – ￦ 1,216 (24.32%)) |  |  |  |  |  |  | (780,628 | ) |  |  | — |
Reserve for business expansion |  |  |  |  |  |  | (1,103,752 | ) |  |  | — |
|  |  |  |  |  |  | (1,884,380 | ) |  |  | — |
V. Unappropriated retained earnings to be carried over forward to subsequent year |  |  |  |  |  |  | — |  |  |  | — |

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