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Commitments for Expenditure - Additional Information (Details) | 12 Months Ended
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Dec. 31, 2024 t
2023 ~ 2031 |
Disclosure of Commitments for Expenditure [Line Items] |
Contracted quantity of uranium | 817

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- Definition Contracted quantity of uranium. + References No definition available. + Details
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Namespace Prefix: | kep_
Data Type: | dtr-types:massItemType
Balance Type: | na
Period Type: | duration

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Namespace Prefix: | kep_
Data Type: | xbrli:stringItemType
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Period Type: | duration

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- Details
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Namespace Prefix: |
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Balance Type: |
Period Type: |