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Reporting Entity (Description of the controlling company) (Tables)
 12 Months Ended
Dec. 31, 2022
Reporting Entity (Description of the controlling company) [Abstract]  
Summary of the Company's Shareholders
As of December 31, 2022, KEPCO’s share capital amounts to ￦3,209,820 million and KEPCO’s shareholders are as follows:
 
    
Number of
shares
     
Percentage of
ownership
  
The Government of the Republic of Korea
      116,841,794        18.20 % 
Korea Development Bank (KDB)
      211,235,264        32.90 % 
Foreign investors
      88,959,339        13.86 % 
Other
      224,927,680        35.04 % 
    
 
 
     
 
 
  
       641,964,077        100.00 %