XML 135 R122.htm IDEA: XBRL DOCUMENT v3.24.1.u1
Restricted Deposits - Summary of Restricted Deposits (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2023
Dec. 31, 2022
Restricted Deposits [Line Items]    
Total Restricted Deposits ₩ 1,302,733 ₩ 1,310,402
Cash and cash equivalents    
Restricted Deposits [Line Items]    
Escrow accounts 3,010 2,912
Deposits for government project 26,969 30,586
Collateral provided for borrowings 190,525 250,346
Collateral provided for lawsuit 54 57
Deposits for transmission regional support program 9,481 8,626
Deposits for other business purposes 5,550 3,825
Short-term financial instruments    
Restricted Deposits [Line Items]    
Collateral provided for borrowings 24,728 1,000
Restriction on withdrawal related to 'win-win growth program' for small and medium enterprises 80,500 101,500
Non-Current financial assets at fair value through profit or loss    
Restricted Deposits [Line Items]    
Decommissioning costs of nuclear power plants 271,047 386,220
Long-term financial instruments    
Restricted Deposits [Line Items]    
Escrow accounts 0 1,603
Collateral provided for borrowings 28,245 21,745
Decommissioning costs of nuclear power plants 655,030 497,609
Guarantee deposits for banking accounts at oversea branches 36 18
Other Non-current assets    
Restricted Deposits [Line Items]    
Deposits for other business purposes ₩ 7,558 ₩ 4,355