v3.26.1
Premises And Equipment - Details of premises and equipment(owned) (Details) - KRW (₩)
₩ in Millions
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Dec. 31, 2022
Disclosure of property plant and equipment [Line Items]        
Net carrying value ₩ 3,190,833 ₩ 2,791,642 ₩ 2,793,077 ₩ 2,777,847
Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 5,134,993 4,629,541    
Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (1,942,849) (1,837,239)    
Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (1,311) (660)    
Land        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 1,983,149 1,662,448 1,709,712 1,695,357
Land | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 1,983,809 1,663,108    
Land | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 0 0    
Land | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (660) (660)    
Building        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 708,535 683,221 719,738 730,676
Building | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 1,125,471 1,087,536    
Building | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (416,885) (404,315)    
Building | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (51) 0    
Equipment and vehicles        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 377,217 305,581 265,064 261,278
Equipment and vehicles | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 1,465,257 1,305,020    
Equipment and vehicles | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (1,087,440) (999,439)    
Equipment and vehicles | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (600) 0    
Leasehold improvements        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 75,958 71,952 61,369 58,352
Leasehold improvements | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 514,364 505,417    
Leasehold improvements | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (438,406) (433,465)    
Leasehold improvements | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 0 0    
Construction in progress        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 45,761 68,440 37,194 32,184
Construction in progress | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 45,761 68,440    
Construction in progress | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 0 0    
Construction in progress | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 0 0    
Structures        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 213 0 ₩ 0 ₩ 0
Structures | Acquisition cost        
Disclosure of property plant and equipment [Line Items]        
Net carrying value 331 20    
Structures | Accumulated depreciation        
Disclosure of property plant and equipment [Line Items]        
Net carrying value (118) (20)    
Structures | Accumulated impairment losses        
Disclosure of property plant and equipment [Line Items]        
Net carrying value ₩ 0 ₩ 0