Employment Benefits - Summary of Defined Benefits (Details) - KRW (₩) ₩ in Millions	Dec. 31, 2022	Dec. 31, 2021
Surplus (deficit) in plan [abstract]
Present value of defined benefit obligation from funded plans	₩ 3,776,715	₩ 4,564,417
Fair value of plan assets	(3,149,414)	(2,909,547)
Net liabilities incurred from defined benefit plans	₩ 627,301	₩ 1,654,870

The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value]

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
-Name IAS
-Number 19
-IssueDate 2022-03-24
-Paragraph 57
-Subparagraph a
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2022-en-r&anchor=para_57_a&doctype=Standard
-URIDate 2022-03-24

Name:	ifrs-full_DefinedBenefitObligationAtPresentValue
Namespace Prefix:	ifrs-full_
Data Type:	xbrli:monetaryItemType
Balance Type:	credit
Period Type:	instant