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Other Financial Assets - Summary of Long-Term and Short-Term Financial Instruments (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2022
Dec. 31, 2021
Short-term financial instruments    
Long / short-term financial instruments [Line Items]    
Time deposits ₩ 428,813 ₩ 976,899
CD 30,000 0
Others 207,945 301,115
Long / short-term financial instruments 666,758 1,278,014
Long-term financial instruments    
Long / short-term financial instruments [Line Items]    
Time deposits 130,570 103,607
CD 0 0
Others 555,752 346,887
Long / short-term financial instruments ₩ 686,322 ₩ 450,494