v3.26.1
Net Interest Income - Summary of Interest Income (Details)
$ in Thousands, ₩ in Millions
 12 Months Ended
Dec. 31, 2025
KRW (₩)
Dec. 31, 2025
USD ($)
Dec. 31, 2024
KRW (₩)
Dec. 31, 2023
KRW (₩)
Disclosure of interest income operating [Abstract]        
Financial assets at FVTPL ₩ 303,458   ₩ 236,793 ₩ 192,094
Financial assets at FVTOCI 1,866,114 $ 1,291,831 1,281,642 999,407
Financial assets at amortized cost        
Interest on due from banks 570,489   624,006 543,789
Interest on loans 17,783,891   19,116,813 18,042,706
Interest of other receivables 115,673   111,031 81,045
Sub-total (Loans and other financial assets at amortized cost) 18,470,053   19,851,850 18,667,540
Securities at amortized cost 539,932   643,056 782,513
Sub-total 19,009,985 13,159,797 20,494,906 19,450,053
Insurance finance interest income 9,186   0 0
Interest income ₩ 21,188,743 $ 14,668,058 ₩ 22,013,341 ₩ 20,641,554