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Service Concession Arrangements (Tables)
 12 Months Ended
Dec. 31, 2022
Disclosure of detailed information about service concession arrangements [abstract]  
Hydroelectric Power Generation at Semangka, Indonesia The Company’s expected future collections of service concession arrangements as of December 31, 2022 are as follows:
Type
          
Amounts
  
           
In millions of won
  
Less than 1 year
    ￦          31,653  
1 ~ 2 years
               31,800  
2 ~ 3 years
               31,728  
Over 3 years
               548,400  
             
 
 
  
     ￦          643,581