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Financial liabilities designated at fair value through profit or loss - Summary of financial liabilities at fair value through profit or loss (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Financial liabilities designated at fair value through profit or loss [Line Items] |  |
Financial liabilities designated at fair value through profit or loss | ₩ 6,378,064 | ₩ 8,220,475
Financial liabilities designated at fair value through profit or loss |  |
Financial liabilities designated at fair value through profit or loss [Line Items] |  |
Financial liabilities designated at fair value through profit or loss | 6,378,064 | 8,220,475
Debt securities issued |  |
Financial liabilities designated at fair value through profit or loss [Line Items] |  |
Financial liabilities designated at fair value through profit or loss | 287,849 | 261,299
Derivative-linked securities sold |  |
Financial liabilities designated at fair value through profit or loss [Line Items] |  |
Financial liabilities designated at fair value through profit or loss | ₩ 6,090,215 | ₩ 7,959,176

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- Definition The amount of financial liabilities at fair value through profit or loss that were designated as such upon initial recognition or subsequently. [Refer: At fair value [member]; Financial liabilities at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 8 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_8_e&doctype=Standard -URIDate 2025-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 44 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_44_b_i&doctype=Standard -URIDate 2025-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Note Effective 2027-01-01 -Name IFRS -Number 19 -IssueDate 2025-01-01 -Paragraph 44 -Subparagraph b -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=19&code=ifrs-tx-2025-en-r&anchor=para_44_b_i&doctype=Standard -URIDate 2025-03-27 + Details
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- References No definition available. + Details
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- Details
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- Details
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- Details
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