XML 200 R188.htm IDEA: XBRL DOCUMENT v3.22.1

Lease - Summary of Changes in Lease Liabilities (Details) - KRW (₩) ₩ in Millions		12 Months Ended
		Dec. 31, 2021	Dec. 31, 2020
Disclosure - Changes in lease liabilities [Abstract]
Beginning balance		₩ 4,621,096	₩ 5,070,133
Increase		73,090	280,114
Decrease		(665,687)	(725,759)
Interest expenses		93,651	111,782
Others	[1]	288,353	(115,174)
Ending balance		₩ 4,410,503	₩ 4,621,096
[1] Including translation effect of foreign currency lease liabilities and others.

X

- Definition

The amount of interest expense on lease liabilities. [Refer: Lease liabilities]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 53
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_53_b&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_InterestExpenseOnLeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- Definition

The amount of liabilities related to the entity's leases. Lease is a contract, or part of a contract, that conveys the right to use an underlying asset for a period of time in exchange for consideration.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IFRS
-Number 16
-IssueDate 2021-01-01
-Paragraph 47
-Subparagraph b
-URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=16&code=ifrs-tx-2021-en-r&anchor=para_47_b&doctype=Standard
-URIDate 2021-03-24

+ Details

Name:	ifrs-full_LeaseLiabilities
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant

X

- Definition

Decrease through leases liabilities except interest expense on lease liabilities.

+ References

No definition available.

+ Details

Name:	kep_DecreaseThroughLeasesLiabilitiesExceptInterestExpenseOnLeaseLiabilities
Namespace Prefix:	kep_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration

X

- References

No definition available.

+ Details

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

X

- Definition

Increase decrease through effect of other changes lease liabilities.

+ References

No definition available.

+ Details

Name:	kep_IncreaseDecreaseThroughEffectOfOtherChangesLeaseLiabilities
Namespace Prefix:	kep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration

X

- Definition

Increase leases liabilities.

+ References

No definition available.

+ Details

Name:	kep_IncreaseLeasesLiabilities
Namespace Prefix:	kep_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	duration