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Commitments and Contingencies - Summary of Lawsuits Disputes (Detail) - Disputes related with ICTA [member] - TRY (₺) ₺ in Thousands | 12 Months Ended
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Dec. 31, 2017 | Dec. 31, 2016
Disclosure of commitments and contingencies [Line Items] |  |
Anticipated Maximum Risk (excluding accrued interest) | ₺ 13,367 | ₺ 22,544
Provision for ongoing disputes | ₺ 0 | ₺ 0

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- Definition The amount of Anticipated Maximum Risk (excluding accrued interest). + References No definition available. + Details
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Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | duration

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

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- Definition The amount of provision for ongoing disputes. + References No definition available. + Details
Name: | tkc_ProvisionForOngoingDisputes
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

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- Details
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Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |