XML 160 R145.htm IDEA: XBRL DOCUMENT
v3.25.1

Other Financial Assets - Summary of Long-Term and Short-Term Financial Instruments (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Long / short-term financial instruments [Line Items] |  |
Current financial assets | ₩ 18,093,912 | ₩ 19,436,019
Non-current financial assets | 8,103,399 | 5,739,801
Other financial assets |  |
Long / short-term financial instruments [Line Items] |  |
Current financial assets | 1,147,929 | 578,578
Non-current financial assets | 812,211 | 833,737
Other financial assets | Time deposits |  |
Long / short-term financial instruments [Line Items] |  |
Current financial assets | 823,806 | 363,286
Non-current financial assets | 135,995 | 145,336
Other financial assets | CD |  |
Long / short-term financial instruments [Line Items] |  |
Current financial assets | 40,000 | 0
Non-current financial assets | 0 | 0
Other financial assets | Others |  |
Long / short-term financial instruments [Line Items] |  |
Current financial assets | 284,123 | 215,292
Non-current financial assets | ₩ 676,216 | ₩ 688,401

X
- Definition The amount of current financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_CurrentFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of non-current financial assets. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2024-01-01 -Paragraph 25 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2024-en-r&anchor=para_25&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_NoncurrentFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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

X
- Details
Name: | ifrs-full_CategoriesOfFinancialAssetsAxis=kep_OtherFinancialAssetsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=kep_LongtermDepositsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=kep_CDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=kep_OtherLongtermAndShorttermFinancialInstrumentsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |