XML 296 R283.htm IDEA: XBRL DOCUMENT v3.24.1.u1

Subsequent Events - Additional Information (Details) - KRW (₩) ₩ in Millions	Feb. 23, 2024	Feb. 15, 2024
Disposal of major subsidiary [member]
Disclosure of non-adjusting events after reporting period [line items]
Percentage Of Shares Sold		21.43%
Sale of stock shares value		₩ 221,490
Entering into significant commitments or contingent liabilities [member]
Disclosure of non-adjusting events after reporting period [line items]
Value of contribution for construction of campus of korea institute of energy technology	₩ 76,600

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

+ Details

Name:	ifrs-full_DisclosureOfNonadjustingEventsAfterReportingPeriodLineItems
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Definition

Percentage of shares sold.

+ References

No definition available.

+ Details

Name:	kep_PercentageOfSharesSold
Namespace Prefix:	kep_
Data Type:	dtr-types:percentItemType
Balance Type:	na
Period Type:	instant

X

- Definition

Sale of stock shares value.

+ References

No definition available.

+ Details

Name:	kep_SaleOfStockSharesValue
Namespace Prefix:	kep_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	instant

X

- Definition

Value of contribution for construction of campus of korea institute of energy technology.

+ References

No definition available.

+ Details

Name:	kep_ValueOfContributionForConstructionOfCampusOfKoreaInstituteOfEnergyTechnology
Namespace Prefix:	kep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_DisposalOfMajorSubsidiaryMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	ifrs-full_NonadjustingEventsAfterReportingPeriodAxis=ifrs-full_EnteringIntoSignificantCommitmentsOrContingentLiabilitiesMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: