Assets subject to lien and assets acquired through foreclosures - Collaterals held that can be disposed and resubjected to lien regardless of defaults of counterparties (Details) - KRW (₩) ₩ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Fair value of collateral available to sell or repledge and collateral sold or repledged [Line Items] | ||
| Fair values of collaterals | ₩ 14,673,954 | ₩ 10,640,153 |
| Fair values of collaterals were disposed or re-subjected to lien | ₩ 0 | ₩ 0 |