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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, 2022
Dec. 31, 2021
Dec. 31, 2020
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading ₩ 141,280 ₩ 216,040  
Valuation gain on financial liabilities [member]      
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading 24,683 51,187 ₩ 172
Valuation loss on financial liabilities [member]      
Disclosure of financial liabilities [line items]      
Derivative liabilities held for trading ₩ 1,800 ₩ 8,741 ₩ 53