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Provision for credit loss allowance (Tables)

12 Months Ended

Dec. 31, 2025

Provision for allowance for credit loss [Abstract]

Summary of Provision for credit loss allowance

Provision for credit loss allowance on financial assets for the years ended December 31, 2023, 2024 and 2025 are as follows:

		2023				2024				2025
Allowance provided:
Loans at amortized cost		W	(2,114,442	)			(1,862,013	)			(2,014,137	)
Other financial assets at amortized cost			(90,770	)			(113,662	)			(70,035	)
Securities at FVOCI			(2,271	)			—				(25,915	)
Unused credit line and financial guarantee			(37,156	)			(41,910	)			—
			(2,244,639	)			(2,017,585	)			(2,110,087	)
Allowance reversed:
Securities at FVOCI			—				2,699				—
Securities at amortized cost			136				1,612				1,243
Unused credit line and financial guarantee			—				—				105,879
			136				4,311				107,122
		W	(2,244,503	)			(2,013,274	)			(2,002,965	)

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- Definition

Disclosure of allowance provided for credit loss.

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