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Assets Pledged as Collateral and Assets Held as Collateral | 12 Months Ended
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Dec. 31, 2025
Assets Pledged as Collateral and Assets Held as Collateral [Abstract] |
Assets Pledged as Collateral and Assets Held as Collateral |
20. | Assets Pledged as Collateral and Assets Held as Collateral
| (a) | Assets pledged as collateral as of December 31, 2024 and 2025 are as follows:
|  | 2024 |  |  | 2025 |  |  | Reasons for collateral
Loans at amortized cost |  | W | 119,699 |  |  |  | — |  |  | Pledge for borrowing transaction
Securities: |  |  |  |  |  |  |  |  |  |
Securities at FVTPL |  |  | 14,837,334 |  |  |  | 12,402,270 |  |  | Customer RP, etc.
Securities at FVOCI |  |  | 10,223,916 |  |  |  | 13,435,175 |  |  | Borrowings, Settlement security for Bank of Korea, Borrowed securities, etc.
Securities at amortized cost |  |  | 1,464,788 |  |  |  | 21,845,620 |  |  | Borrowings, Settlement security for Bank of Korea, Customer RP, etc.
|  |  | 26,526,038 |  |  |  | 47,683,065 |  |  |
Deposits at amortized cost |  |  | 1,845,022 |  |  |  | 315,986 |  |  | Borrowings, etc.
Property and Equipment (real estate) |  |  | 5,515 |  |  |  | 3,474 |  |  | Establishing the right to collateral security, etc.
|  | W | 28,496,274 |  |  |  | 48,002,525 |  |  |
| (*) | The carrying amounts of assets pledged that the pledgees have the right to sell or re-pledge regardless of the Group’s default as of December 31, 2024 and 2025 are W 13,579,738 million and W 13,374,326 million, respectively.
| (b) | As of December 31, 2024 and 2025, the fair value of securities held as collateral by the Group that may be sold or repledged, regardless of whether the pledgor defaults, amounted to W 5,676,715 million and W 3,607,427 million, respectively. The fair value of collateral sold or repledged amounted to W 1,339,757 million and W 1,606,806 million, respectively.

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- Definition The disclosure of assets and liabilities used as collateral. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 10 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_10_e&doctype=Standard -URIDate 2025-03-27 + Details
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- References No definition available. + Details
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