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Commitments and Contingencies - Dispute to Special Communication Tax - Additional Information (Detail) - Dispute on Special Communication Tax [member] - TRY (₺) ₺ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of commitments and contingencies [Line Items] |  |
Additional special communication tax and tax penalty on claim | ₺ 527,639 |
Additional special communication tax on claim | 211,056 |
Tax penalty on claim | 316,583 |
The assessment of the SCT for the year 2011 | 80,355 |
The restructuring amount of penalties and interest on the SCT |  | ₺ 117,058
Accrued provisions of restructuring the SCT | ₺ 24,175 | ₺ 14,866

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- Definition Accrued provisions amount of restructuring the SCT for the year 2013. + References No definition available. + Details
Name: | tkc_AccruedProvisionsOfRestructuringTheSCT
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Definition The claim amount of additional special communication tax and tax penalty for the years 2008-2012. + References No definition available. + Details
Name: | tkc_AdditionalSpecialCommunicationTaxAndTaxPenaltyOnClaim
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The claim amount of additional special communication tax. + References No definition available. + Details
Name: | tkc_AdditionalSpecialCommunicationTaxOnClaim
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition Disclosure of commitments and contingencies [Line Items] + References No definition available. + Details
Name: | tkc_DisclosureOfCommitmentsAndContingenciesLineItems
Namespace Prefix: | tkc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition Indirect tax penalty on claim. + References No definition available. + Details
Name: | tkc_IndirectTaxPenaltyOnClaim
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition The restructuring of penalties and interest on the SCT regarding the dispute on the tax amount for the years 2008, 2009, 2010, and 2012. + References No definition available. + Details
Name: | tkc_RestructuringAmountOfPenaltiesAndInterestOnSCT
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

X
- Definition The parts against the company for the assessment of the SCT for the year 2011. + References No definition available. + Details
Name: | tkc_TheAssessmentOfTheSCT
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Details
Name: | ifrs-full_TypesOfContractsAxis=tkc_DisputeOnSpecialCommunicationTaxMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |