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Gains (losses) on financial assets at fair value through profit or loss (Details) - KRW (₩) ₩ in Millions | 12 Months Ended
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Dec. 31, 2020 | Dec. 31, 2019
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Gains (losses) on financial assets at fair value through profit or loss | ₩ 40,699 | ₩ 32,233
Financial assets at fair value through profit or loss | Beneficiary securities |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Gains (losses) on financial assets at fair value through profit or loss | 6,127 | 12,458
Financial assets at fair value through profit or loss | Cooperative securities |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Gains (losses) on financial assets at fair value through profit or loss | 645 | 76
Financial assets at fair value through profit or loss | Debt with embedded derivatives |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Gains (losses) on financial assets at fair value through profit or loss | 3,598 | 2,697
Financial assets at fair value through profit or loss | Other |  |
Financial Assets At Fair Value Through Profit Or Loss [Line Items] |  |
Gains (losses) on financial assets at fair value through profit or loss | ₩ 30,329 | ₩ 17,002

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- Definition The gains (losses) on financial assets at fair value through profit or loss. [Refer: Financial assets at fair value through profit or loss] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2020-01-01 -Paragraph 20 -Subparagraph a -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2020-en-r&anchor=para_20_a_i&doctype=Standard -URIDate 2020-01-01 + Details
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