XML 293 R278.htm IDEA: XBRL DOCUMENT v3.25.1

Commitments for Expenditure - Summary of Commitments For Inventory Purchase (Details)	12 Months Ended
	Dec. 31, 2024
Concentrate
Disclosure of contracts for inventory purchase commitment [Line Items]
Periods	2024 ~ 2033
Contracted amounts	22,282 Ton U3O8
Conversion
Disclosure of contracts for inventory purchase commitment [Line Items]
Periods	2024 ~ 2030
Contracted amounts	14,391 Ton U
Enrichment
Disclosure of contracts for inventory purchase commitment [Line Items]
Periods	2024 ~ 2035
Contracted amounts	26,943 Ton SWU

X

- Definition

Contracted amounts.

+ References

No definition available.

+ Details

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

X

- References

No definition available.

+ Details

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

X

- Definition

Periods.

+ References

No definition available.

+ Details

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

X

- Details

Name:	kep_ContractsForInventoryPurchaseCommitmentAxis=kep_ConcentrateMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kep_ContractsForInventoryPurchaseCommitmentAxis=kep_ConversionMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type:

X

- Details

Name:	kep_ContractsForInventoryPurchaseCommitmentAxis=kep_EnrichmentMember
Namespace Prefix:
Data Type:	na
Balance Type:
Period Type: