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Cash and Cash Equivalents (Tables)
 12 Months Ended
Dec. 31, 2022
Cash and cash equivalents [abstract]  
Summary of Cash and Cash Equivalents
Cash and cash equivalents as of December 31, 2021 and 2022 are as follows:
 
          
2021
     
2022
  
          
In millions of won
  
Cash
    ￦         19,623        21,113  
Other demand deposits
              1,825,751        1,906,248  
Short-term deposits classified as cash equivalents
              407,921        1,063,290  
Short-term investments classified as cash equivalents
              381,943        244,129  
            
 
 
     
 
 
  
     ￦         2,635,238        3,234,780