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Commitments and Contingencies - Summary of the issuance of real estate collateral trust and beneficiary certificates of the Group (Detail) - Real Estate Collateral Trust [Member] ₩ in Millions | Dec. 31, 2021 KRW (₩)
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NH Jayang Inc [Member] | First Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | ₩ 100,000
Amount provided as collateral for beneficiary rights | 120,000
Kyobo Life Insurance [Member] | First Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 180,000
Amount provided as collateral for beneficiary rights | 216,000
Standard Chartered Bank Korea Limited [Member] | First Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 120,000
Amount provided as collateral for beneficiary rights | 144,000
Standard Chartered Bank Korea Limited [Member] | Second Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 20,000
Amount provided as collateral for beneficiary rights | 24,000
Samsung Life Insurance [Member] | First Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 100,000
Amount provided as collateral for beneficiary rights | 120,000
Industrial Bank Of Korea [member] | Second Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 40,000
Amount provided as collateral for beneficiary rights | 48,000
Korea Investment Capital [Member] | Second Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 40,000
Amount provided as collateral for beneficiary rights | 48,000
BNK Capital [Member] | Second Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 30,000
Amount provided as collateral for beneficiary rights | 36,000
LOTTE Engineering Construction [Member] | Third Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 0
Amount provided as collateral for beneficiary rights | 736,921
NH Capital [Member] | Second Placing Of Collateral Asset [Member] |
Disclosure Of Real Estate Collateral Trust And Beneficiary Certificates Of The Group [Line Items] |
Commitment (limit) amount | 20,000
Amount provided as collateral for beneficiary rights | ₩ 24,000

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- Definition The amount of financial assets that the entity has pledged as collateral for liabilities or contingent liabilities, including amounts that have been reclassified in accordance with paragraph 3.2.23(a) of IFRS 9. [Refer: Contingent liabilities [member]; Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2021-01-01 -Paragraph 14 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2021-en-r&anchor=para_14_a&doctype=Standard -URIDate 2021-03-24 + Details
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- Definition Commitment amount. + References No definition available. + Details
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- Definition Disclosure of real estate collateral trust and beneficiary certificates of the Group [Lineitems]. + References No definition available. + Details
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- Details
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- Details
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- Details
Name: | kt_TrustCollateralBeneficiaryAxis=kt_KyoboLifeInsuranceMember
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- Details
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Name: | kt_TrustCollateralBeneficiaryAxis=kt_LotteEngineeringConstructionMember
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