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Other Financial Assets - Summary of Other Financial Assets (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2022
Dec. 31, 2021
Other Financial Assets [Line Items]    
Current Other financial assets ₩ 798,819 ₩ 1,365,603
Non-Current Other financial assets 1,567,632 1,271,976
Loans and receivables    
Other Financial Assets [Line Items]    
Current Other financial assets 132,061 87,589
Non-Current Other financial assets 881,310 821,482
Loans and receivables | Gross amount    
Other Financial Assets [Line Items]    
Current Other financial assets 132,890 88,406
Non-Current Other financial assets 968,468 903,397
Loans and receivables | Allowance for doubtful accounts    
Other Financial Assets [Line Items]    
Current Other financial assets (13) (10)
Non-Current Other financial assets (54,824) (52,667)
Loans and receivables | Present value discount    
Other Financial Assets [Line Items]    
Current Other financial assets (816) (807)
Non-Current Other financial assets (32,334) (29,248)
Short-term financial instruments    
Other Financial Assets [Line Items]    
Current Other financial assets 666,758 1,278,014
Long-term financial instruments    
Other Financial Assets [Line Items]    
Non-Current Other financial assets ₩ 686,322 ₩ 450,494