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Risk Management - Summary of Sensitivity Analysis for Actuarial Assumptions (Details) - KRW (₩) ₩ in Millions | Dec. 31, 2024 | Dec. 31, 2023
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Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
Increase movements in discount rate on plan asset | 1.00% | 1.00%
Decrease movements in discount rate on plan asset | 1.00% | 1.00%
1% Increase | ₩ 36,602 | ₩ 29,993
1% Decrease | 29,993 | 36,602
Actuarial assumption of expected rates of salary increases |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
1% Increase | 473,627 | 392,392
1% Decrease | (413,799) | (361,359)
Actuarial assumption of discount rates |  |
Disclosure of sensitivity analysis for actuarial assumptions [line items] |  |
1% Increase | (429,517) | (371,103)
1% Decrease | ₩ 506,031 | ₩ 415,361

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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 [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + 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 [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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- Definition The reasonably possible percentage of the decrease in the actuarial assumption used to determine the present value of defined benefit obligation. [Refer: Actuarial assumptions [domain]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2024-01-01 -Paragraph 145 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2024-en-r&anchor=para_145_a&doctype=Standard -URIDate 2024-03-27 + Details
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