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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, 2023 | Dec. 31, 2022
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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 | ₩ 4,162,949 | ₩ 3,876,693
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 1,114,595 | 1,073,736
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 | 3,520,173 | 3,384,295
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 903,394 | 857,076
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 | 203,200 | 103,326
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 | 2,338 | 1,988
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 | 437,238 | 387,084
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 | ₩ 211,201 | ₩ 216,660

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- Definition The amount of deductible temporary differences for which no deferred tax asset is recognised in the statement of financial position. [Refer: Temporary differences [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2023-01-01 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2023-en-r&anchor=para_81_e&doctype=Standard -URIDate 2023-03-23 + Details
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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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