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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, 2022 | Dec. 31, 2021
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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 | ₩ 3,876,693 | ₩ 2,583,033
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 1,073,736 | 568,540
Investment in subsidiaries, associates, and joint ventures |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 3,384,295 | 2,355,539
Taxable Temporary Differences For Which No Deferred Tax Asset and Liabilities Is Recognised | 857,076 | 568,540
Unused tax loss |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 103,326 | 106,853
Unused Tax credit |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 1,988 | 1,376
Others |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |
Deductible temporary differences for which no deferred tax asset is recognised | 387,084 | 119,265
Others |  |
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 | ₩ 216,660 | ₩ 0

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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 2022-03-24 -Paragraph 81 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=12&code=ifrs-tx-2022-en-r&anchor=para_81_e&doctype=Standard -URIDate 2022-03-24 + 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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