Net Interest Income (Tables)

12 Months Ended

Dec. 31, 2025

Interest Revenue (Expense), Net [Abstract]

Summary of Interest Income

(1)	Details of Interest income recognized are as follows (Unit: Korean Won in millions):


		For the years ended December 31
		2023				2024				2025
Financial assets at FVTPL			192,094				236,793				303,458
Financial assets at FVTOCI			999,407				1,281,642				1,866,114
Financial assets at amortized cost
Loans and other financial assets at amortized cost
Interest on due from banks			543,789				624,006				570,489
Interest on loans			18,042,706				19,116,813				17,783,891
Interest of other receivables			81,045				111,031				115,673

Sub-total			18,667,540				19,851,850				18,470,053

Securities at amortized cost			782,513				643,056				539,932

Sub-total			19,450,053				20,494,906				19,009,985

Insurance finance interest income			—				—				9,186

Total			20,641,554				22,013,341				21,188,743

Summary of Interest Expense

(2)	Details of interest expense recognized are as follows (Unit: Korean Won in millions):


		For the years ended December 31
		2023				2024				2025
Interest on deposits due to customers			8,738,249				9,599,529				8,050,948
Interest on borrowings			1,294,710				1,351,612				1,111,255
Interest on debentures			1,507,108				1,760,003				1,823,313
Other interest expense			348,588				398,694				398,088
Interest on lease liabilities			10,359				17,167				18,349

Total			11,899,014				13,127,005				11,401,953

Insurance finance interest expense			—				—				756,021

Total			11,899,014				13,127,005				12,157,974