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Business Combination - Schedule of Intangible Assets Additionally Identified By The Group As A Result Of Major Business Combinations For The Year (Detail) ₩ in Millions | Dec. 31, 2021 KRW (₩)
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HCN Co.,Ltd [Member] |
Disclosure Of Intangible Assets Additionally Identified By The Group As A Result Of Major Business Combinations [Line Items] |
Goodwill | ₩ 252,680
Customer relationship | 125,893
Epsilon Global Communications Pte. Ltd [Member] |
Disclosure Of Intangible Assets Additionally Identified By The Group As A Result Of Major Business Combinations [Line Items] |
Goodwill | 149,706
Customer relationship | ₩ 12,964

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- Definition The amount recognised as of the acquisition date for customer-related intangible assets acquired in a business combination. [Refer: Customer-related intangible assets [member]; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -Subparagraph i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64_i&doctype=Appendix&subtype=B -URIDate 2021-03-24 + Details
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Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

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- Definition The amount recognised as of the business combination's acquisition date for goodwill. [Refer: Goodwill; Business combinations [member]] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph B64 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_B64&doctype=Appendix&subtype=B -URIDate 2021-03-24 Reference 2: http://www.xbrl.org/2003/role/exampleRef -Name IFRS -Number 3 -IssueDate 2021-01-01 -Paragraph IE72 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=3&code=ifrs-tx-2021-en-r&anchor=para_IE72&doctype=Illustrative%20Examples -URIDate 2021-03-24 + Details
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- Definition Disclosure of intangible assets additionally identified by the group as a result of major business combinations. + References No definition available. + Details
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- Details
Name: | ifrs-full_BusinessCombinationsAxis=kt_HcnCo.ltdMember
Namespace Prefix: |
Data Type: | na
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- Details
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