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Financial Instruments - Additional Information (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2025 | Dec. 31, 2024
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Disclosure of detailed information about financial instruments [line items] |  |
Maximum exposure to credit risk related financial guarantees | ₩ 31,708,876 | ₩ 30,256,184
Financial guarantee [member] |  |
Disclosure of detailed information about financial instruments [line items] |  |
Maximum exposure to credit risk related financial guarantees | ₩ 3,613,477 | ₩ 3,832,003

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- Definition The amount that best represents the maximum exposure to credit risk without taking into account any collateral held or other credit enhancements (for example, netting agreements that do not qualify for offset in accordance with IAS 32). [Refer: Credit risk [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2025-01-01 -Paragraph 35K -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2025-en-r&anchor=para_35K_a&doctype=Standard -URIDate 2025-03-27 + Details
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- Details
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