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Reporting Entity - Additional Information (Detail) - 12 months ended Dec. 31, 2018 € in Thousands, $ in Thousands | USD ($) | EUR (€)
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Turkcell holding A.S. [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
Ownership interest by parent | 51.00% | 51.00%
Turkish treasury [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
Payment through treasury shares, percentage of gross revenue | 15.00% | 15.00%
Percentage of treasury shares transferred as treasury shares | 90.00% | 90.00%
Turkish ministry [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
Percentage of treasury shares transferred as universal service fund | 10.00% | 10.00%
4.5G license tender [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
License contract period | 13 years | 13 years
Value added tax percentage | 18.00% | 18.00%
Tender price (excludes VAT of 18%) |  | € 1,623,460
2G license [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
License contract period | 25 years | 25 years
License fee | $ | $ 500,000 |
Payment through treasury shares, percentage of gross revenue | 15.00% | 15.00%
3G license [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
License fee |  | € 358,000
ICTA expenses [member] | Turkish treasury [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
Payment through treasury shares, percentage of net revenue | 0.35% | 0.35%
Frequency fees [member] | Turkish treasury [member] |  |
Disclosure of Description Of Reporting Entity [line items] |  |
Payment through treasury shares, percentage of net revenue | 5.00% | 5.00%

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- Definition Disclosure of Description Of Reporting Entity [line items] + References No definition available. + Details
Name: | tkc_DisclosureOfDescriptionOfReportingEntityLineItems
Namespace Prefix: | tkc_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

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- Definition License fee. + References No definition available. + Details
Name: | tkc_LicenseFee
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

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- Definition Operating license contractual life. + References No definition available. + Details
Name: | tkc_OperatingLicenseContractualLife
Namespace Prefix: | tkc_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition Payment through treasury shares percentage of gross revenue. + References No definition available. + Details
Name: | tkc_PaymentThroughTreasurySharesPercentageOfGrossRevenue
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Payment through treasury shares, percentage of net revenue. + References No definition available. + Details
Name: | tkc_PaymentThroughTreasurySharesPercentageOfNetRevenue
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of treasury shares transferred as treasury shares. + References No definition available. + Details
Name: | tkc_PercentageOfTreasurySharesTransferredAsTreasuryShares
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Percentage of treasury shares transferred as universal service fund. + References No definition available. + Details
Name: | tkc_PercentageOfTreasurySharesTransferredAsUniversalServiceFund
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Definition Proportion of ownership interest held by ultimate parent entity. + References No definition available. + Details
Name: | tkc_ProportionOfOwnershipInterestHeldByUltimateParentEntity
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | instant

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- Definition Tender price. + References No definition available. + Details
Name: | tkc_TenderPrice
Namespace Prefix: | tkc_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | duration

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- Definition EUR 1,623,460 excludes VAT of 18%. + References No definition available. + Details
Name: | tkc_ValueAddedTaxPercentage
Namespace Prefix: | tkc_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=tkc_TurkcellHoldingASMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=tkc_TurkishTreasuryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=tkc_TurkishMinistryMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

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

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

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

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