XML 123 R110.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Other Financial Assets and Liabilities - Summary of Financial Liabilities at Fair Value Through Profit or Loss (Parenthetical) (Detail) - KRW (₩) ₩ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of financial liabilities [line items] |  |
Derivative financial liabilities | ₩ 24,547 | ₩ 33,555
K Bank Inc. [Member] |  |
Disclosure of financial liabilities [line items] |  |
Derivative financial liabilities | ₩ 133,293 | ₩ 134,881

X
- Definition The amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_DerivativeFinancialLiabilities
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
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_DisclosureOfFinancialLiabilitiesLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=kt_KBankInc.Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |