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Other Financial Assets and Liabilities - Summary of Valuation Gain and Loss on Financial Liabilities at Fair Value Through Profit or Loss (Detail) - KRW (₩)
₩ in Millions
Dec. 31, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading ₩ 136,106 ₩ 141,280  
Valuation gain on financial liabilities [member]      
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading 3,316 24,683 ₩ 51,187
Valuation loss on financial liabilities [member]      
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading ₩ 10,710 ₩ 1,800 ₩ 8,741