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Contingencies and Commitments (Tables) | 12 Months Ended
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Dec. 31, 2023
Contingencies and Commitments [Abstract] |
Summary of Ongoing Litigations Related With Contingent Liabilities And Contingent Assets |
(1) | Ongoing litigations and claims related with contingent liabilities and contingent assets as of December 31, 2022 and 2023 are as follows:
|  | 2022 |  |  | 2023 |
|  | Number of cases |  |  | Claim amount |  |  | Number of cases |  |  | Claim amount |
|  | In millions of won |
As the defendant |  |  | 653 |  |  | ￦ | 981,878 |  |  |  | 666 |  |  | ￦ | 805,227 |
As the plaintiff |  |  | 238 |  |  |  | 599,809 |  |  |  | 268 |  |  |  | 571,593 |
Summary of Credit Lines Provided By Financial Institutions |
(3) | Lines of credit provided by financial institutions as of December 31, 2023 are as follows:
Commitments |  | Financial institutions |  | Currency |  | Credit limit |  |  | Used amount |
|  | In millions of won and thousands of foreign currencies |
Commitments on Bank-overdraft |  | Nonghyup Bank and others |  | KRW |  |  | 2,260,500 |  |  |  | 3,096 |
Limit amount available for CP |  | Hana Bank and others |  | KRW |  |  | 5,650,000 |  |  |  | 5,650,000 |
General Loan, etc. |  | Hana Bank and others |  | KRW |  |  | 4,400,000 |  |  |  | 4,350,000 |
Limit amount available for card |  | Hana Bank and others |  | KRW |  |  | 47,424 |  |  |  | 1,919 |
Loan limit |  | Korea Development Bank and others |  | KRW |  |  | 2,708,395 |  |  |  | 1,969,529 |
|  | DBS Bank and others |  | USD |  |  | 1,782,000 |  |  |  | USD 40,000 |
|  |  |  |  |  |  |  |  |  |  | KRW 200,000 |
Certification of payment on payables from foreign country Certification of payment on L/C |  | Nonghyup Bank |  | USD |  |  | 8,700 |  |  |  | 5,270 |
| Shinhan Bank and others |  | USD |  |  | 1,160,452 |  |  |  | 178,558 |
| Kookmin Bank and others |  | EUR |  |  | 42,688 |  |  |  | 42,688 |
| Shinhan Bank |  | JPY |  |  | 481,785 |  |  |  | 481,785 |
Certification of Performance guarantee on contract |  | Hana Bank and others |  | KRW |  |  | 145,855 |  |  |  | 125,289 |
|  | First Abu Dhabi Bank and others |  | USD |  |  | 921,138 |  |  |  | 788,313 |
|  | Korea Development Bank and others |  | JPY |  |  | 620,000 |  |  |  | 620,000 |
|  | Hana Bank |  | EUR |  |  | 12,106 |  |  |  | 12,106 |
|  | Hana Bank |  | INR |  |  | 44,872 |  |  |  | 44,872 |
|  | Hana Bank |  | OMR |  |  | 6,250 |  |  |  | 6,250 |
|  | Hana Bank |  | SAR |  |  | 4,151 |  |  |  | 4,151 |
Certification of bidding |  | Hana Bank |  | USD |  |  | 5,200 |  |  |  | — |
|  | Export-Import Bank of Korea |  | EUR |  |  | 10,000 |  |  |  | 10,000 |
Advance payment bond, Warranty bond, Retention bond and others |  | Seoul Guarantee Insurance Hana Bank and others |  | KRW USD |  |  | 57,670 813,839 |  |  |  | 57,670 763,596 |
|  | Saudi National Bank |  | SAR |  |  | 21,000 |  |  |  | 21,000 |
|  | Hana Bank and others |  | MXN |  |  | 21,597 |  |  |  | 20,027 |
Others (*) |  | Nonghyup Bank and others |  | KRW |  |  | 337,126 |  |  |  | KRW 19,943 |
|  |  |  |  |  |  |  |  |  |  | USD 20,832 |
|  |  |  |  |  |  |  |  |  |  | EUR 282 |
|  | Nonghyup Bank and others |  | USD |  |  | 316,327 |  |  |  | USD 60,073 |
|  |  |  |  |  |  |  |  |  |  | EUR 48,825 |
|  | StandardChartered |  | AED |  |  | 50 |  |  |  | 50 |
Secured loan of credit sales |  | Nonghyup Bank and others |  | KRW |  |  | 271,000 |  |  |  | — |
Inclusive credit |  | Hana Bank |  | KRW |  |  | 8,000 |  |  |  | 4,920 |
|  | Hana Bank and others |  | USD |  |  | 135,000 |  |  |  | USD 15,141 |
|  |  |  |  |  |  |  |  |  |  | INR 345,206 |
Equity Bridge Loan Guarantee |  | Export-Import Bank of Korea and others |  | USD |  |  | 1,764,555 |  |  |  | 1,372,546 |
Trade finance |  | DBS Bank and others |  | USD |  |  | 870,000 |  |  |  | — |
| (*) | As of December 31, 2023, the Company has entered into a credit extension agreement for derivatives transactions with Nonghyup Bank, Hana Bank, and Woori Bank as ancillary to currency swap transactions.
Summary of Blank Check And Assets Provided As Collaterals Or Pledges To Financial Institutions By The Company Explanatory |
(4) | As of December 31, 2023, blank check and assets provided as collaterals or pledges to financial institutions by the Company are follows:
Obligor |  | Creditor |  | Assets provided as security |  | Currency |  | Amount |  |  | Description
|  | In millions of won and thousands of foreign currencies
Mira Power Limited |  | International Finance Corporation and others |  | Property, plant and equipment and others |  | USD |  |  | 264,800 |  |  | Collateral for borrowings(*1)
Tamra Offshore Wind Power Co., Ltd. |  | Kyobo Life Insurance Co., Ltd. and others |  | Property, plant and equipment and others |  | KRW |  |  | 171,600 |  |  | Collateral for borrowings(*2)
Gyeonggi Green Energy Co., Ltd. |  | Korea Development Bank and others |  | Cash and cash equivalents and others |  | KRW |  |  | 327,080 |  |  | Collateral for borrowings(*2)
Commerce and Industry Energy Co., Ltd. |  | IBK and others |  | Property, plant and equipment and others |  | KRW |  |  | 110,500 |  |  | Collateral for borrowings(*2)
Jeongam Wind Power Co., Ltd. |  | KDB Capital Corporation and others |  | Cash and cash equivalents and others |  | KRW |  |  | 230,259 |  |  | Collateral for borrowings(*2)
Gyeongju Wind Power Co., Ltd. |  | Shinhan Bank and others |  | Property, plant and equipment and others |  | KRW |  |  | 68,400 |  |  | Collateral for borrowings(*2)
Korea Offshore Wind Power Co., Ltd. |  | Woori Bank and others |  | Property, plant and equipment and others |  | KRW |  |  | 293,400 |  |  | Collateral for borrowings(*2)
Qatrana Electric Power Company |  | The Islamic Development Bank and others |  | Finance lease receivable and property, plant and equipment and others |  | JOD |  |  | 136,623 |  |  | Collateral for borrowings(*1)
KST Electric Power Company, S.A.P.I. de C.V. |  | Export-Import Bank of Korea and others |  | Finance lease receivable and property, plant and equipment and others |  | USD |  |  | 401,277 |  |  | Collateral for debt securities(*1)
Incheon Fuel Cell Co., Ltd. |  | Kookmin Bank and others |  | Cash and cash equivalents and others |  | KRW |  |  | 276,960 |  |  | Collateral for borrowings(*2)
K-SOLAR SHINAN Co., Ltd. |  | Kyobo Life Insurance Co., Ltd. and others |  | Property, plant and equipment and others |  | KRW |  |  | 329,736 |  |  | Collateral for borrowings(*2)
KOSPO Youngnam Power Co., Ltd. |  | Shinhan Bank and others |  | Cash and cash equivalents and others |  | KRW |  |  | 744,120 |  |  | Collateral for borrowings(*2)
Jeju Hanlim Offshore Wind Co., Ltd. |  | Kookmin Bank and others |  | Property, plant and equipment and others |  | KRW |  |  | 1,800 |  |  | Collateral for borrowings(*2)
Western Power Changgi Solar Co., Ltd. |  | Samsung Life Insurance and others |  | Property, plant and equipment and others |  | KRW |  |  | 58,500 |  |  | Collateral for borrowings(*2)
J Wind First, LLC |  | Woori Bank |  | Trade receivable and others |  | KRW |  |  | 55,000 |  |  | Collateral for borrowings (*2)
Chitose Solar Power Plant LLC |  | Korea Development Bank |  | Property, plant and equipment and others |  | USD |  |  | 134,289 |  |  | Collateral for borrowings(*1)
Mangilao Intermediate Holdings LLC |  | Mizuho Bank |  | Trade receivable and others |  | USD |  |  | 93,392 |  |  | Collateral for borrowings(*1)
(4) | As of December 31, 2023, blank check and assets provided as collaterals or pledges to financial institutions by the Company are follows, continued:
(*1) | This is based on the amount of loan commitment limit.
(*2) | As of December 31, 2023, the Company has established guarantees for pledge for transfer of rights of long-term borrowings, pledge for insurance claims, pledge for shares, etc.

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