XML 249 R234.htm IDEA: XBRL DOCUMENT
v3.19.1

Service Concession Arrangements (Details) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 KRW (₩)
Disclosure of detailed information about service concession arrangements [Line Items] |
Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) | ₩ 399,033
Hydroelectric Power Generation at Semangka, Indonesia (BOT) | 679,301
Less than 1 year |
Disclosure of detailed information about service concession arrangements [Line Items] |
Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) | 116,790
Hydroelectric Power Generation at Semangka, Indonesia (BOT) | 27,803
1~2 Years |
Disclosure of detailed information about service concession arrangements [Line Items] |
Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) | 116,790
Hydroelectric Power Generation at Semangka, Indonesia (BOT) | 27,929
2~3 Years |
Disclosure of detailed information about service concession arrangements [Line Items] |
Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) | 116,790
Hydroelectric Power Generation at Semangka, Indonesia (BOT) | 27,863
Over 3 years |
Disclosure of detailed information about service concession arrangements [Line Items] |
Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) | 48,663
Hydroelectric Power Generation at Semangka, Indonesia (BOT) | ₩ 595,706

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfServiceConcessionArrangementsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition Gas Complex - Thermal Power Plant at Ilijan, Philippines (BOT) + References No definition available. + Details
Name: | kep_GasComplexThermalPowerPlantAtIlijanPhilippinesBOT
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Hydroelectric Power Generation at Semangka, Indonesia (BOT) + References No definition available. + Details
Name: | kep_HydroelectricPowerGenerationAtSemangkaIndonesiaBOT
Namespace Prefix: | kep_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |