XML 177 R164.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Investments in Associates and Joint Ventures - Additional Information (Details) | 12 Months Ended
--- | ---
Dec. 31, 2023
Time Period One [Member] | Daegu Green Power Co., Ltd. |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 5 years
Time Period Two [Member] | Daegu Green Power Co., Ltd. |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 10 years
Time Period Three [Member] | Daegu Green Power Co., Ltd. |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |
Duration from the date of investment after which the rights to purchase the shares may be exercised | 13 years
Gemeng International Energy Co., Ltd. | Woori Spot PEF [Member] |
Disclosure Of Investments in Associates and Joint Ventures [Line Items] |
Put options as a percentage of shares | 8.00%
Operating fees percentage | 1.00%
Maturity date of the put options | Dec. 25, 2023

X
- Definition Disclosure Of Investments in Associates and Joint Ventures [Line items] + References No definition available. + Details
Name: | kep_DisclosureOfInvestmentsInAssociatesAndJointVenturesLineItems
Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Duration from the date of investment after which the right to purchase the shares may be exercised. + References No definition available. + Details
Name: | kep_DurationFromTheDateOfInvestmentAfterWhichTheRightToPurchaseTheSharesMayBeExercised
Namespace Prefix: | kep_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Maturity date of the put options. + References No definition available. + Details
Name: | kep_MaturityDateOfThePutOptions
Namespace Prefix: | kep_
Data Type: | xbrli:dateItemType
Balance Type: | na
Period Type: | duration

X
- Definition Operating fees percentage. + References No definition available. + Details
Name: | kep_OperatingFeesPercentage
Namespace Prefix: | kep_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Definition Put option as a percentage of shares. + References No definition available. + Details
Name: | kep_PutOptionAsAPercentageOfShares
Namespace Prefix: | kep_
Data Type: | dtr-types:percentItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | kep_TimePeriodOneAxis=kep_TimePeriodOneMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_JointVenturesAxis=kep_DaeguGreenPowerJointVenturesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kep_TimePeriodOneAxis=kep_TimePeriodTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kep_TimePeriodOneAxis=kep_TimePeriodThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_SignificantInvestmentsInAssociatesAxis=kep_GemengInternationalEnergyMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | kep_InvestorAxis=kep_WooriSpotPefMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |