XML 123 R111.htm IDEA: XBRL DOCUMENT
v3.22.1

Reporting Entity (Description of the controlling company) - Additional Information (Details) - KRW (₩) ₩ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2021 | Dec. 31, 2020
Statement [Line Items] |  |
Name of reporting entity or other means of identification | Korea Electric Power Corporation and subsidiaries |
Name of parent entity | Korea Electric Power Corporation |
Entity Incorporation, Date of Incorporation | Incorporated on December 31, 1981 in accordance with the Korea Electric Power Corporation Act (the “KEPCO Act”) |
Description of nature of entity's operations and principal activities | Engage in the generation, transmission and distribution of electricity and development of electric power resources. KEPCO also provides power plant construction services. |
Country of incorporation | Republic of Korea. |
Information of listing on stock market | KEPCO’s stock was first listed on the Korea Stock Exchange on August 10, 1989 and subsequently on the New York Stock Exchange on October 27, 1994 through its depository receipts. |
Address of registered office of entity | KEPCO’s headquarters is located in Naju-si, Jeollanam-do. |
Issued capital | ₩ 3,209,820 | ₩ 3,209,820

X
- Definition The address at which the entity's office is registered. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_AddressOfRegisteredOfficeOfEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The country in which the entity is incorporated. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_CountryOfIncorporation
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The description of the nature of the entity's operations and principal activities. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_b&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DescriptionOfNatureOfEntitysOperationsAndPrincipalActivities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal value of capital issued. + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 78 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_78_e&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_IssuedCapital
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The name of the entity's parent. [Refer: Parent [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 24 -IssueDate 2021-01-01 -Paragraph 13 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=24&code=ifrs-tx-2021-en-r&anchor=para_13&doctype=Standard -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 138 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_138_c&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NameOfParentEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The name of the reporting entity or other means of identification. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2021-01-01 -Paragraph 51 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_51_a&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_NameOfReportingEntityOrOtherMeansOfIdentification
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Description of entity incorporation date of incorporation. + References No definition available. + Details
Name: | kep_DescriptionOfEntityIncorporationDateOfIncorporation
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Information of listing on stock market. + References No definition available. + Details
Name: | kep_InformationOfListingOnStockMarket
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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