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Commitments and Contingencies - Summary of Primary Payment Guarantees that the Company Provided from the Guarantee Institution (Detail) ₩ in Millions | Dec. 31, 2025 KRW (₩)
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Disclosure of contingent liabilities [line items] |
Agreed amount | ₩ 2,486,755
Executed amount | 1,395,830
Payment guarantees provided from the guarantee institution [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 14,579,116
Executed amount | 12,606,242
Payment guarantees provided from the guarantee institution [member] | Construction Guarantee Cooperative [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 5,255,953
Executed amount | 5,255,953
Payment guarantees provided from the guarantee institution [member] | Engineering guarantee insurance [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 913,756
Executed amount | 700,662
Payment guarantees provided from the guarantee institution [member] | Seoul Guarantee Insurance [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 517,441
Executed amount | 517,441
Payment guarantees provided from the guarantee institution [member] | Korea Housing & Urban Guarantee Corporation [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 5,711,921
Executed amount | 5,038,742
Payment guarantees provided from the guarantee institution [member] | Woori Bank and others [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 1,953,945
Executed amount | 897,193
Payment guarantees provided from the guarantee institution [member] | Korea software financial cooperative [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 120,173
Executed amount | 114,611
Payment guarantees provided from the guarantee institution [member] | Seoul guarantee insurance two [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 80,249
Executed amount | 80,249
Payment guarantees provided from the guarantee institution [member] | Construction guarantee cooperative one [member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 24,482
Executed amount | 195
Payment guarantees provided from the guarantee institution [member] | CI Guarantee [Member] |
Disclosure of contingent liabilities [line items] |
Agreed amount | 1,196
Executed amount | ₩ 1,196

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