XML 254 R169.htm IDEA: XBRL DOCUMENT
v3.20.1

Finance Lease Liabilities : Lease payments recognized as an expense from a lessee position (Details) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 KRW (₩)
Lease and sublease payments recognised as expense [Abstract] |
Minimum lease payment | ₩ 111,530
Contingent rent payment | ₩ (18,872)

X
- References No definition available. + Details
Name: | kep_ContingentRentsRecognisedAsExpenseClassifiedAsFinanceLease
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- References No definition available. + Details
Name: | kep_LeaseAndSubleasePaymentsRecognisedAsExpense
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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