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Employment Benefits - Summary of Employment Benefits (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2024	Dec. 31, 2023
Disclosure of net defined benefit liability (asset) [abstract]
Net defined benefit asset	₩ 40,425	₩ 70,187
Net defined benefit obligations	1,449,837	1,033,409
Other long-term employee benefit obligations	₩ 1,710	₩ 1,911

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- References

No definition available.

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- Definition

The amount of surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [domain]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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-IssueDate 2024-01-01
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-URIDate 2024-03-27

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- Definition

The amount of deficit in a defined benefit plan. [Refer: Defined benefit plans [domain]]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Other long-term employee benefit obligations.

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No definition available.

+ Details

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