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v3.23.1

Related Parties - Summary of Borrowings Arising From Related Party Transactions (Details) - Korea Development Bank ₩ in Millions | 12 Months Ended
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Dec. 31, 2022 KRW (₩)
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | ₩ 353,324
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 302,222
Repayment | (437,262)
Others | 4,213
Ending balance | 222,497
Facility |
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | 98,020
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 61,092
Repayment | (64,875)
Others | 2,347
Ending balance | 96,584
Others |
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | 2,509
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 0
Repayment | (376)
Others | 0
Ending balance | 2,133
Operating funds |
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | 184,300
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 164,252
Repayment | (285,961)
Others | (158)
Ending balance | 62,433
Syndicated Loans |
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | 14,530
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 0
Repayment | (1,040)
Others | (1,035)
Ending balance | 12,455
EBL |
Disclosure of Borrowings transactions between related parties [Line Items] |
Beginning balance | 53,965
Changes in Borrowings transactions between related parties [Abstract] |
Borrowings | 76,878
Repayment | (85,010)
Others | 3,059
Ending balance | ₩ 48,892

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- Definition Amounts borrowings related party transactions. + References No definition available. + Details
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- Definition Borrowings transactions between related parties. + References No definition available. + Details
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Balance Type: | credit
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- References No definition available. + Details
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- References No definition available. + Details
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- Definition Other increase decrease borrowings transactions between related parties. + References No definition available. + Details
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Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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- Definition Repayment of borrowings transactions between related parties. + References No definition available. + Details
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Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=kep_KoreaDevelopmentBankMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_FacilityLoan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_OtherLoan1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_OperatingFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_SyndicatedLoanMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
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Namespace Prefix: |
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Period Type: |