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Employment Benefits - Summary of the Fair Value of Plan Assets (Details) - KRW (₩) ₩ in Millions		Dec. 31, 2022	Dec. 31, 2021
Disclosure of fair value of plan assets [abstract]
Equity instruments		₩ 171,301	₩ 344,002
Debt instruments		854,640	744,167
Bank deposits		590,103	407,809
Others	[1]	1,533,370	1,413,569
Plan assets		₩ 3,149,414	₩ 2,909,547
[1] ‘Others’ consist of various financial assets managed by external asset management companies.

X

- Definition

The amount cash and cash equivalents contribute to the fair value of defined benefit plan assets. [Refer: Cash and cash equivalents; Plan assets, at fair value; Defined benefit plans [member]]

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- Definition

The amount instruments representing debt (rather than equity) contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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- Definition

The amount instruments representing equity (rather than debt) contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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- Definition

The amount other types of assets not separately disclosed contribute to the fair value of defined benefit plan assets. [Refer: Plan assets, at fair value; Defined benefit plans [member]]

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- Definition

The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]]

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