Investment Properties - Summary of Investment Properties and Changes in Investment Properties (Details) - KRW (₩) ₩ in Millions	12 Months Ended
Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Disclosure of detailed information about investment property [line items]
Beginning balance	₩ 208,286	₩ 212,784
Disposal	0	(208)
Depreciation	(493)	(486)	₩ (1,386)
Others	(22,266)	(3,804)
Endings balance	185,527	208,286	212,784
Acquisition cost
Disclosure of detailed information about investment property [line items]
Beginning balance	214,658
Endings balance	192,637	214,658
Accumulated depreciation
Disclosure of detailed information about investment property [line items]
Beginning balance	(6,351)
Endings balance	(7,088)	(6,351)
Government grants
Disclosure of detailed information about investment property [line items]
Beginning balance	(21)	(30)
Disposal	0	0
Depreciation	1	1
Others	(2)	8
Endings balance	(22)	(21)	(30)
Investment property - Land
Disclosure of detailed information about investment property [line items]
Beginning balance	194,417
Endings balance	172,594	194,417
Investment property - Land \| Carrying Amount Other than Government Grants
Disclosure of detailed information about investment property [line items]
Beginning balance	194,417	201,605
Disposal	0	(208)
Depreciation	0	0
Others	(21,823)	(6,980)
Endings balance	172,594	194,417	201,605
Investment property - Land \| Acquisition cost
Disclosure of detailed information about investment property [line items]
Beginning balance	194,417
Endings balance	172,594	194,417
Investment property - Land \| Accumulated depreciation
Disclosure of detailed information about investment property [line items]
Beginning balance	0
Endings balance	0	0
Investment property - Land \| Government grants
Disclosure of detailed information about investment property [line items]
Beginning balance	0
Endings balance	0	0
Investment property - Buildings
Disclosure of detailed information about investment property [line items]
Beginning balance	13,869
Endings balance	12,933	13,869
Investment property - Buildings \| Carrying Amount Other than Government Grants
Disclosure of detailed information about investment property [line items]
Beginning balance	13,890	11,209
Disposal	0	0
Depreciation	(494)	(487)
Others	(441)	3,168
Endings balance	12,955	13,890	₩ 11,209
Investment property - Buildings \| Acquisition cost
Disclosure of detailed information about investment property [line items]
Beginning balance	20,241
Endings balance	20,043	20,241
Investment property - Buildings \| Accumulated depreciation
Disclosure of detailed information about investment property [line items]
Beginning balance	(6,351)
Endings balance	(7,088)	(6,351)
Investment property - Buildings \| Government grants
Disclosure of detailed information about investment property [line items]
Beginning balance	(21)
Endings balance	₩ (22)	₩ (21)

The amount of depreciation recognised on investment property. [Refer: Depreciation and amortisation expense; Investment property]

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- 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.

+ Details

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- Definition

The decrease in investment property resulting from disposals. [Refer: Investment property]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
-Paragraph 76
-Subparagraph c
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-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
-Paragraph 79
-Subparagraph d
-Clause iii
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d_iii&doctype=Standard
-URIDate 2023-03-23

+ Details

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- Definition

The increase (decrease) in investment property resulting from changes that the entity does not separately disclose in the same statement or note. [Refer: Investment property]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
-Paragraph 79
-Subparagraph d
-Clause viii
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-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
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-URIDate 2023-03-23

+ Details

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- Definition

The amount of property (land or a building - or part of a building - or both) held (by the owner or by the lessee as a right-of-use asset) to earn rentals or for capital appreciation or both, rather than for: (a) use in the production or supply of goods or services or for administrative purposes; or (b) sale in the ordinary course of business.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
-Paragraph 76
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_76&doctype=Standard
-URIDate 2023-03-23

Reference 2: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 40
-IssueDate 2023-01-01
-Paragraph 79
-Subparagraph d
-URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=40&code=ifrs-tx-2023-en-r&anchor=para_79_d&doctype=Standard
-URIDate 2023-03-23

Reference 3: http://www.xbrl.org/2003/role/disclosureRef
-Name IAS
-Number 1
-IssueDate 2023-01-01
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-URIDate 2023-03-23

+ Details

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