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Restricted Deposits (Tables) | 12 Months Ended
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Dec. 31, 2023
Restricted Deposits [Abstract] |
Summary of Restricted Deposits | Restricted deposits as of December 31, 2022 and 2023 are as follows:
|  |  |  |  |  |  | 2022 |  |  | 2023 |
|  |  |  |  |  |  | In millions of won |
Cash and cash equivalents |  | Escrow accounts |  | ￦ |  |  |  |  | 2,912 |  |  |  | 3,010 |
|  | Deposits for government project and others |  |  |  |  |  |  | 30,586 |  |  |  | 26,969 |
|  | Collateral provided for borrowings |  |  |  |  |  |  | 250,346 |  |  |  | 190,525 |
|  | Collateral provided for lawsuit |  |  |  |  |  |  | 57 |  |  |  | 54 |
|  | Deposits for transmission regional support program |  |  |  |  |  |  | 8,626 |  |  |  | 9,481 |
|  | Deposits for other business purposes |  |  |  |  |  |  | 3,825 |  |  |  | 5,550 |
Short-term financial instruments |  | Restriction on withdrawal related to ‘win-win growth program’ for small and medium enterprises and others |  |  |  |  |  |  | 101,500 |  |  |  | 80,500 |
|  | Collateral provided for borrowings |  |  |  |  |  |  | 1,000 |  |  |  | 24,728 |
Non-current financial assets at fair value through profit or loss |  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | 386,220 |  |  |  | 271,047 |
Long-term financial instruments |  | Escrow accounts |  |  |  |  |  |  | 1,603 |  |  |  | — |
|  | Guarantee deposits for banking accounts at oversea branches |  |  |  |  |  |  | 18 |  |  |  | 36 |
|  | Collateral provided for borrowings |  |  |  |  |  |  | 21,745 |  |  |  | 28,245 |
|  | Decommissioning costs of nuclear power plants |  |  |  |  |  |  | 497,609 |  |  |  | 655,030 |
Other non-current assets |  | Deposits for other business purposes |  |  |  |  |  |  | 4,355 |  |  |  | 7,558 |
|  |  |  | ￦ |  |  |  |  | 1,310,402 |  |  |  | 1,302,733 |

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