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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

X

- Definition

Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table.

+ References

No definition available.

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X

- Definition

The decrease in equity resulting from the purchase of treasury shares. [Refer: Treasury shares]

+ References

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X

- Definition

An entity’s own equity instruments, held by the entity or other members of the consolidated group.

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