v3.26.1
Financial Liabilities at FVTPL - Summary Of Financial Liabilities At FVTPL (Details)
$ in Thousands, ₩ in Millions
Dec. 31, 2025
KRW (₩)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
KRW (₩)
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss ₩ 6,356,934 $ 4,400,633 ₩ 9,896,597
Financial liabilities at fair value through profit or loss measured at fair value      
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss 467,501   547,816
Financial instruments at fair value through profit or loss      
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss 5,889,433   9,348,781
Financial instruments at fair value through profit or loss | Gold banking liabilities      
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss 263,251   74,205
Financial instruments at fair value through profit or loss | Securities sold      
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss 496,518   182,478
Financial instruments at fair value through profit or loss | Derivative liabilities      
Disclosure of financial liabilities at fair value through profit or loss [Line Items]      
Financial liabilities at fair value through profit or loss ₩ 5,129,664   ₩ 9,092,098