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Deferred Income Tax and Income Tax Expense - Summary of deferred tax assets and liabilities that are not recognized (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | ₩ 4,157,796 | ₩ 4,162,949
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 862,102 | 1,114,595
Investment in subsidiaries, associates, and joint ventures [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 3,799,037 | 3,520,173
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 859,471 | 903,394
Unused tax loss [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 212,283 | 203,200
Unused Tax credit [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 5,071 | 2,338
Others [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 141,405 | 437,238
Others [member] |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | ₩ 2,631 | ₩ 211,201

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- Definition Taxable temporary differences for which no deferred tax asset and liabilities is recognised + References No definition available. + Details
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