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Net Defined Benefit Liabilities - Summary of Sensitivity of the Defined Benefit Obligations (Detail) ₩ in Millions | Dec. 31, 2019 KRW (₩)
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Discount rate [member] |
Disclosure of sensitivity analysis for actuarial assumptions [Line items] |
Percentage changes in assumption | 0.50%
Effect on defined benefit obligation, increase in assumption | ₩ (77,044)
Effect on defined benefit obligation, decrease in assumption | ₩ 83,574
Salary growth rate [member] |
Disclosure of sensitivity analysis for actuarial assumptions [Line items] |
Percentage changes in assumption | 0.50%
Effect on defined benefit obligation, increase in assumption | ₩ 76,010
Effect on defined benefit obligation, decrease in assumption | ₩ (70,874)

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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 2019-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_145_a&doctype=Standard -URIDate 2019-03-27 + 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 [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2019-01-01 -Paragraph 145 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=19&code=ifrs-tx-2019-en-r&anchor=para_145_a&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Percentage of reasonably possible increase decrease in actuarial assumption. + References No definition available. + Details
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