XML 235 R222.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Interests in Unconsolidated Structured Entities - Summary of Unconsolidated Structured Entities and Nature of Risks (Detail) - KRW (₩) ₩ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022
Disclosure of unconsolidated structured entities [line items] |  |
Other financial assets | ₩ 4,164,961 | ₩ 3,823,936
Joint ventures and associates | 1,556,889 | 1,480,722
Real Estate Finance [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 7,890,823 | 3,539,827
Other financial assets | 216,040 | 77,819
Joint ventures and associates | 144,517 | 123,138
Total | 360,557 | 200,957
Maximum loss exposure Investment assets | 360,557 | 200,957
Investment agreement and others | 44,975 | 40,914
Total | 405,532 | 241,871
PEF and Investment Funds [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 4,833,966 | 5,580,445
Other financial assets | 227,266 | 237,907
Joint ventures and associates | 282,550 | 268,275
Total | 509,816 | 506,182
Maximum loss exposure Investment assets | 509,816 | 506,182
Investment agreement and others | 106,064 | 91,224
Total | 615,880 | 597,406
Asset Securitization [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 1,846,270 | 2,044,989
Unconsolidated structured entities [member] |  |
Disclosure of unconsolidated structured entities [line items] |  |
Total assets of unconsolidated structured entities | 14,571,059 | 11,165,261
Other financial assets | 443,306 | 315,726
Joint ventures and associates | 427,067 | 391,413
Total | 870,373 | 707,139
Maximum loss exposure Investment assets | 870,373 | 707,139
Investment agreement and others | 151,039 | 132,138
Total | ₩ 1,021,412 | ₩ 839,277

X
- Definition The amount of assets recognised in the entity's financial statements relating to its interests in structured entities. [Refer: Assets; Unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 29 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_29_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_AssetsRecognisedInEntitysFinancialStatementsInRelationToStructuredEntities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- 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
Name: | ifrs-full_DisclosureOfUnconsolidatedStructuredEntitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2023-01-01 -Paragraph 24 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2023-en-r&anchor=para_24_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph B16 -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2023-03-23 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_e&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_InvestmentAccountedForUsingEquityMethod
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The maximum exposure to the credit risk of financial assets designated as measured at fair value through profit or loss. [Refer: Credit risk [member]; Maximum exposure to credit risk] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph 9 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_9_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_MaximumExposureToCreditRiskOfFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount that best represents the entity's maximum exposure to loss from its interests in structured entities. [Refer: Unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 29 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_29_c&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_MaximumExposureToLossFromInterestsInStructuredEntities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_OtherFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Definition The amount of risk exposure associated with financial instruments with a shared characteristic that identifies a concentration of risks. [Refer: Financial instruments, class [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 7 -IssueDate 2023-01-01 -Paragraph B8 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2023-en-r&anchor=para_B8_c&doctype=Appendix&subtype=B -URIDate 2023-03-23 + Details
Name: | ifrs-full_RiskExposureAssociatedWithInstrumentsSharingCharacteristic
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Definition The amount of financial or other support (for example, purchasing assets of, or instruments issued by, the structured entity) provided to a structured entity without having a contractual obligation to do so, including assistance in obtaining financial support. [Refer: Subsidiaries [member]; Unconsolidated structured entities [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 15 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_15_a&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2023-01-01 -Paragraph 30 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2023-en-r&anchor=para_30_a&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_SupportProvidedToStructuredEntityWithoutHavingContractualObligationToDoSo
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_UnconsolidatedStructuredEntitiesAxis=kt_RealEstateFinanceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnconsolidatedStructuredEntitiesAxis=ifrs-full_InvestmentFundsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnconsolidatedStructuredEntitiesAxis=ifrs-full_AssetbackedFinancingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_UnconsolidatedStructuredEntitiesAxis=ifrs-full_UnconsolidatedStructuredEntitiesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |