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Events After Reporting Period - Additional Information (Detail) - KRW (₩) ₩ in Millions |  | 12 Months Ended
--- | --- | ---
Feb. 09, 2023 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020
Disclosure of non-adjusting events after reporting period [line items] |  |  |  |
Purchase of treasury shares | ₩ 300,000 | ₩ (763,081) | ₩ 190,105 | ₩ 110,097
Treasury shares | ₩ 100,000 | ₩ 202,295 | ₩ 1,009,798 |

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- Definition The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 106 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_106_d&doctype=Standard -URIDate 2022-03-24 + Details
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