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Financial Instruments - Sensitivity Analysis of Financial Assets and Financial Liabilities Classified as Level 3 of Fair Value Hierarchy (Detail) - Available-for-sale financial assets [member] ₩ in Millions | 12 Months Ended
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Dec. 31, 2025 KRW (₩)
Fluctuation 0.5% of growth rate [member] |
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items] |
Favorable changes | ₩ 336
Unfavorable changes | (302)
Fluctuation 0.5% of discount rate [member] |
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items] |
Favorable changes | 3,474
Unfavorable changes | ₩ (3,682)

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- Definition The amount of increase (decrease) in the fair value measurement of assets due to a reasonably possible decrease in an unobservable input. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2025-01-01 -Paragraph 93 -Subparagraph h -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2025-en-r&anchor=para_93_h_ii&doctype=Standard -URIDate 2025-03-27 + Details
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- Definition The amount of increase (decrease) in the fair value measurement of assets due to a reasonably possible increase in an unobservable input. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2025-01-01 -Paragraph 93 -Subparagraph h -Clause ii -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2025-en-r&anchor=para_93_h_ii&doctype=Standard -URIDate 2025-03-27 + Details
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