XML 189 R174.htm IDEA: XBRL DOCUMENT v3.25.1

Construction Contracts - Additional Information (Details) ₩ in Millions	12 Months Ended
	Dec. 31, 2024 KRW (₩)
Construction contracts
Accumulated Earned Revenue Expense And Others [Line Items]
Revenue that was included in contract liability balance at beginning of period	₩ 247,819

X

- Definition

The amount of revenue that was included in the contract liability balance at the beginning of the period. [Refer: Contract liabilities; Revenue from contracts with customers]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 15
-IssueDate 2024-01-01
-Paragraph 116
-Subparagraph b
-URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=15&code=ifrs-tx-2024-en-r&anchor=para_116_b&doctype=Standard
-URIDate 2024-03-27

+ Details

Name:	ifrs-full_RevenueThatWasIncludedInContractLiabilityBalanceAtBeginningOfPeriod
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Accumulated earned revenue expense and others.

+ References

No definition available.

+ Details

Name:	kep_AccumulatedEarnedRevenueExpenseAndOthersLineItems
Namespace Prefix:	kep_
Data Type:	xbrli:stringItemType
Balance Type:	na
Period Type:	duration

X

- Details

Name:	ifrs-full_TypesOfContractsAxis=kep_ConstructionContractMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: