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Risk Management - Summary of Sensitivity Analysis for Actuarial Assumptions (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
1% Increase | ₩ 27,495 | ₩ 25,649
1% Decrease | 27,495 | 25,649
Actuarial assumption of expected rates of salary increases |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
1% Increase | 321,930 | 466,832
1% Decrease | (283,658) | (407,554)
Actuarial assumption of discount rates |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
1% Increase | (289,229) | (422,290)
1% Decrease | ₩ 337,033 | ₩ 499,571

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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by a decrease in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + Details
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- Definition The increase (decrease) in a defined benefit obligation that would have been caused by an increase in a significant actuarial assumption that was reasonably possible at the end of the reporting period. [Refer: Actuarial assumptions [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2022-03-24 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_145_a&doctype=Standard -URIDate 2022-03-24 + Details
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