v3.26.1
Equity - Summary Of Treasury Stock (Details)
$ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2025
KRW (₩)
shares
Dec. 31, 2025
USD ($)
shares
Dec. 31, 2024
KRW (₩)
shares
Dec. 31, 2024
USD ($)
shares
Dec. 31, 2023
KRW (₩)
shares
Stockholders Equity Number Of Shares Par Value And Other Disclosures [Line Items]          
Beginning balance, Number of shares 751,949,461 751,949,461      
Balance at beginning ₩ (35,895,269) $ (24,848,754) ₩ (33,397,490)   ₩ (31,627,342)
Ending balance, Number of shares 742,591,501 742,591,501 751,949,461 751,949,461  
Balance at end ₩ (37,859,248) $ (26,208,335) ₩ (35,895,269) $ (24,848,754) ₩ (33,397,490)
Treasury shares          
Stockholders Equity Number Of Shares Par Value And Other Disclosures [Line Items]          
Beginning balance, Number of shares 3,082,276 3,082,276 3,427,497 3,427,497 343,991
Balance at beginning | ₩ ₩ 35,517   ₩ 39,348   ₩ 3,819
Acquisition, Number of shares 8,515,377 8,515,377 9,359,819 9,359,819 13,552,312
Acquisition, Book Value | ₩ ₩ 150,003   ₩ 136,712   ₩ 157,222
Disposal and others, Number of shares (8,515,377) (8,515,377) (9,705,040) (9,705,040) (10,468,806)
Disposal and others, Book value | ₩ ₩ (150,003)   ₩ (140,543)   ₩ (121,693)
Ending balance, Number of shares 3,082,276 3,082,276 3,082,276 3,082,276 3,427,497
Balance at end | ₩ ₩ 35,517   ₩ 35,517   ₩ 39,348