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Investment Properties - Summary of Investment Properties (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2019 | Dec. 31, 2018
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | ₩ 1,091,084 | ₩ 1,189,531
Changes in accounting policy | 46,666 |
Acquisition | 254,066 | 75,263
Disposal and termination | (1,693) | (14,967)
Depreciation | (65,178) | (44,653)
Transfer from (to) property and equipment | 41,335 | (39,363)
Transfer and others | 21,150 | (74,727)
Ending balance | 1,387,430 | 1,091,084
Gross carrying amount [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 1,518,917 | 1,590,018
Ending balance | 1,880,584 | 1,518,917
Accumulated depreciation and amortisation [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | (427,833) | (400,487)
Ending balance | (493,154) | (427,833)
Land [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 348,848 | 356,790
Acquisition | 148,511 | 1,111
Disposal and termination | (285) | (4,729)
Transfer from (to) property and equipment | 33,254 | 3,080
Transfer and others | 23,268 | (7,404)
Ending balance | 553,596 | 348,848
Land [member] | Gross carrying amount [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 350,417 | 358,358
Ending balance | 555,164 | 350,417
Land [member] | Accumulated depreciation and amortisation [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | (1,569) | (1,568)
Ending balance | (1,568) | (1,569)
Buildings [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 742,115 | 792,768
Changes in accounting policy | 46,666 |
Acquisition | 103,774 | 7
Disposal and termination | (1,408) | (10,238)
Depreciation | (65,178) | (44,653)
Transfer from (to) property and equipment | 8,081 | (5,366)
Transfer and others | (2,118) | 9,597
Ending balance | 831,932 | 742,115
Buildings [member] | Gross carrying amount [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 1,168,379 | 1,191,687
Ending balance | 1,323,518 | 1,168,379
Buildings [member] | Accumulated depreciation and amortisation [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | (426,264) | (398,919)
Ending balance | (491,586) | (426,264)
Investment property, construction-in-progress [Member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 121 | 39,973
Acquisition | 1,781 | 74,145
Transfer from (to) property and equipment |  | (37,077)
Transfer and others |  | (76,920)
Ending balance | 1,902 | 121
Investment property, construction-in-progress [Member] | Gross carrying amount [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | 121 | 39,973
Ending balance | 1,902 | 121
Investment property, construction-in-progress [Member] | Accumulated depreciation and amortisation [member] |  |
Disclosure of detailed information about investment property [line items] |  |
Beginning balance | ₩ 0 |
Ending balance |  | ₩ 0

X
- Definition The amount of depreciation recognised on investment property. [Refer: Depreciation and amortisation expense; Investment property] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph d -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_79_d_iv&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2019-01-01 -Paragraph 76 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_76&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain 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 2019-01-01 -Paragraph 76 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_76_c&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph d -Clause iii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_79_d_iii&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from transfers. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 16 -IssueDate 2019-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2019-en-r&anchor=para_73_e&doctype=Standard -URIDate 2019-03-27 + 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 2019-01-01 -Paragraph 76 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_76&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 40 -IssueDate 2019-01-01 -Paragraph 79 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=40&code=ifrs-tx-2019-en-r&anchor=para_79_d&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_b&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The cash outflow for the purchase of investment property. [Refer: Investment property] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 7 -IssueDate 2019-01-01 -Paragraph 16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=7&code=ifrs-tx-2019-en-r&anchor=para_16&doctype=Standard -URIDate 2019-03-27 + Details
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