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Other Financial Assets - Summary of Other Financial Assets (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2024
Dec. 31, 2023
Other Financial Assets [Line Items]    
Current Other financial assets ₩ 3,494,717 ₩ 3,107,397
Non-Current Other financial assets 4,945,990 3,546,214
Loans and receivables    
Other Financial Assets [Line Items]    
Current Other financial assets 108,921 138,161
Non-Current Other financial assets 799,227 850,170
Loans and receivables | Gross amount    
Other Financial Assets [Line Items]    
Current Other financial assets 115,161 139,178
Non-Current Other financial assets 901,953 966,421
Loans and receivables | Allowance for doubtful accounts    
Other Financial Assets [Line Items]    
Current Other financial assets (5,156) (10)
Non-Current Other financial assets (66,838) (80,783)
Loans and receivables | Present value discount    
Other Financial Assets [Line Items]    
Current Other financial assets (1,084) (1,007)
Non-Current Other financial assets (35,888) (35,468)
Short-term financial instruments    
Other Financial Assets [Line Items]    
Current Other financial assets 1,147,929 578,578
Long-term financial instruments    
Other Financial Assets [Line Items]    
Non-Current Other financial assets 812,211 833,737
Other financial assets    
Other Financial Assets [Line Items]    
Current Other financial assets 1,256,850 716,739
Non-Current Other financial assets ₩ 1,611,438 ₩ 1,683,907