XML 195 R180.htm IDEA: XBRL DOCUMENT
v3.23.1

Borrowings and Debt Securities - Short-term Borrowings (Details) € in Thousands, $ in Thousands, ₩ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2022 KRW (₩) | Dec. 31, 2021 KRW (₩) | Dec. 31, 2022 USD ($) | Dec. 31, 2021 USD ($) | Dec. 31, 2021 EUR (€)
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Short-term borrowings | ₩ 8,820,425 | ₩ 2,920,563 |  |  |
Local short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | DB financial investment and others | DB financial investment and others |  |  |
Short-term borrowings | ₩ 5,549,120 | ₩ 2,030,886 | $ 0 | $ 0 |
Local short-term borrowings | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate | 3.21% | 1.96% | 3.21% | 1.96% | 1.96%
Borrowings, maturity | 2023.01.02 | 2022.01.07 |  |  |
Local short-term borrowings | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate | 5.80% | 4.60% | 5.80% | 4.60% | 4.60%
Borrowings, maturity | 2023.12.31 | 2022.12.31 |  |  |
Foreign short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Shinhan Bank | Shinhan Bank and others |  |  |
Borrowings, interest rate | 5.19% |  | 5.19% |  |
Borrowings, maturity | 2023.02.28 |  |  |  |
Short-term borrowings | ₩ 15,264 | ₩ 186,755 | $ 12,045 | $ 157,533 |
Foreign short-term borrowings | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 0.34% |  | 0.34% | 0.34%
Borrowings, maturity |  | 2022.01.04 |  |  |
Foreign short-term borrowings | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 0.45% |  | 0.45% | 0.45%
Borrowings, maturity |  | 2022.03.30 |  |  |
Foreign short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Shinhan Bank | Korea Development Bank and others |  |  |
Borrowings, interest rate basis | SOFR(1M) + 0.65 | 1M Libor + 1.25 |  |  |
Borrowings, maturity | 2023.02.27 | 2022.04.29 |  |  |
Short-term borrowings | ₩ 50,692 | ₩ 205,142 | 40,000 | $ 173,042 |
Foreign short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Kookmin Bank and others | Shinhan Bank and others |  |  |
Short-term borrowings | ₩ 116,333 | ₩ 92,847 | $ 91,796 | $ 78,319 |
Foreign short-term borrowings | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate | 3.32% | 0.57% | 3.32% | 0.57% | 0.57%
Borrowings, maturity | 2023.01.09 | 2022.06.17 |  |  |
Foreign short-term borrowings | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate | 5.88% | 0.80% | 5.88% | 0.80% | 0.80%
Borrowings, maturity | 2023.06.12 | 2022.08.31 |  |  |
Local bank overdraft |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Woori Bank and others | Korea Development Bank and others |  |  |
Borrowings, interest rate basis | Standard overdraft rate + 1.32 4.83 |  |  |  |
Short-term borrowings | ₩ 35,616 | ₩ 208,018 | $ 0 | $ 0 |
Local bank overdraft | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 1.73% |  | 1.73% | 1.73%
Borrowings, adjustment to interest rate basis | 1.32% |  | 1.32% |  |
Borrowings, maturity | 2023.01.06 | 2022.01.07 |  |  |
Local bank overdraft | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 2.25% |  | 2.25% | 2.25%
Borrowings, adjustment to interest rate basis | 4.83% |  | 4.83% |  |
Borrowings, maturity | 2023.02.24 | 2022.02.26 |  |  |
Electronic short-term bonds |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor |  | BNK Securities and others |  |  |
Short-term borrowings |  | ₩ 100,000 |  | $ 0 |
Electronic short-term bonds | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 1.35% |  | 1.35% | 1.35%
Borrowings, maturity |  | 2022.01.21 |  |  |
Electronic short-term bonds | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, interest rate |  | 1.77% |  | 1.77% | 1.77%
Borrowings, maturity |  | 2022.02.08 |  |  |
Foreign short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor |  | Credit Agricole and others |  |  |
Borrowings, interest rate |  | 0.04% |  | 0.04% | 0.04%
Borrowings, maturity |  | 2022.06.28 |  |  |
Short-term borrowings |  | ₩ 96,915 |  |  | € 72,199
Local short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Nonghyup Bank and others |  |  |  |
Borrowings, interest rate basis | 3M CD + 1.11~1.70 |  |  |  |
Short-term borrowings | ₩ 3,000,000 |  | $ 0 |  |
Local short-term borrowings | Minimum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, adjustment to interest rate basis | 1.11% |  | 1.11% |  |
Borrowings, maturity | 2023.05.25 |  |  |  |
Local short-term borrowings | Maximum |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Borrowings, adjustment to interest rate basis | 1.70% |  | 1.70% |  |
Borrowings, maturity | 2023.11.24 |  |  |  |
Local short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Shinhan Bank |  |  |  |
Borrowings, interest rate basis | 6M Bank Debenture Rate + 1.77 |  |  |  |
Borrowings, adjustment to interest rate basis | 1.77% |  | 1.77% |  |
Borrowings, maturity | 2023.11.17 |  |  |  |
Short-term borrowings | ₩ 50,000 |  | $ 0 |  |
Local short-term borrowings |  |  |  |  |
Disclosure of detailed information about Short-term borrowings [Line Items] |  |  |  |  |
Name of Creditor | Korea Development Bank |  |  |  |
Borrowings, interest rate | 4.15% |  | 4.15% |  |
Borrowings, maturity | 2023.01.06 |  |  |  |
Short-term borrowings | ₩ 3,400 |  | $ 0 |  |

X
- Definition The adjustment to the basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsAdjustmentToInterestRateBasis
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRate
Namespace Prefix: | ifrs-full_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition The basis (reference rate) used for calculation of the interest rate on borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsInterestRateBasis
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The maturity of borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 7 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2022-en-r&anchor=para_7&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_BorrowingsMaturity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of current borrowings. [Refer: Borrowings] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 + Details
Name: | ifrs-full_ShorttermBorrowings
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- References No definition available. + Details
Name: | kep_DisclosureOfDetailedInformationAboutShortTermBorrowingsLineItems
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_NameOfCreditor
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_LocalShortTermBorrowings1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_ForeignShortTermBorrowings1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_ForeignShortTermBorrowings2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_ForeignShortTermBorrowings3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_LocalBankOverdraft1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_ElectronicShortTermBonds1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_ForeignShortTermBorrowings4Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_LocalShortTermBorrowings2Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_LocalShortTermBorrowings3Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BorrowingsByNameAxis=kep_LocalShortTermBorrowings4Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |