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v3.19.1

Basis of Preparation and Summary of Significant Accounting Policies - Additional Information (Detail) - TRY (₺) | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2014 | Dec. 20, 2018 | Feb. 16, 2018 | Jan. 01, 2018 | Aug. 22, 2017 | Apr. 14, 2017
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Depreciation method property plant and equipment | Decrease in inflation rate in subsequent years led the three-year cumulative rate as of the end of 2014 to decrease to 65%. |  |  |  |  |  |  |  |
Three-year cumulative inflation rate |  |  |  | 65.00% |  |  |  |  |
Salary calculation period | 30 days |  |  |  |  |  |  |  |
Employee payments | ₺ 2,069,142,000 | ₺ 1,787,116,000 | ₺ 1,490,961,000 |  |  |  |  |  |
Discount rate used for calculating employee termination benefit | 4.41% | 3.33% |  |  |  |  |  |  |
Percentage of revenues comprised | 7.25% |  |  |  |  |  |  |  |
Turkcell Finansman A.S. [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Financial loan sold |  |  |  |  | ₺ 56,716,000 | ₺ 90,272,000 |  | ₺ 89,607,000 | ₺ 87,589,000
Inteltek Internet Teknoloji Yatirim Ve Danismanlik A.S [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Percentage of net earnings to gross earning | 1.40% |  |  |  |  |  |  |  |
Azerinteltek [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Revenue commission percentage | 15.00% |  |  |  |  |  |  |  |
Maritime Affairs and Communications [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Revenue from operations | ₺ 376,765,000 | ₺ 257,866,000 |  |  |  |  |  |  |
Right of use assets [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Prepaid lease expenses accounted for under prepaid expenses before the application of IFRS 16 | ₺ 542,179,000 |  |  |  |  |  |  |  |
Bottom of range [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Percentage of voting rights in associates | 20.00% |  |  |  |  |  |  |  |
Employee payments | ₺ 5,434,000 | 4,732,000 |  |  |  |  |  |  |
Top of range [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Percentage of voting rights in associates | 50.00% |  |  |  |  |  |  |  |
Crimea [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Impairment Loss |  |  |  | ₺ 19,897,000 |  |  |  |  |
Donetsk and Luhansk [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Impairment Loss | ₺ 0 | ₺ 10,872,000 |  |  |  |  |  |  |
Belarusian Telecom [member] | Special GSM and UMTS services licenses [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Service licenses acquired, life | 10 years |  |  |  |  |  |  |  |
Additional contractual life of service license | 10 years |  |  |  |  |  |  |  |
Receivables from financial services [member] |  |  |  |  |  |  |  |  |
Disclosure of basis of preparation and summary of significant accounting policies [line items] |  |  |  |  |  |  |  |  |
Increase in provision for receivables from financial services recognized under retained earnings |  |  |  |  |  |  | ₺ (52,951,000) |  |

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