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Equity - Additional Information (Detail)
₺ / shares in Units, $ / shares in Units, ₼ in Thousands, $ in Thousands
 1 Months Ended 12 Months Ended
Mar. 29, 2018
TRY (₺)
₺ / shares
May 25, 2017
TRY (₺)
₺ / shares
May 25, 2017
TRY (₺)
$ / shares
Jan. 31, 2018
TRY (₺)
Dec. 31, 2018
TRY (₺)
Installment
Vote
₺ / shares
shares
Dec. 31, 2017
TRY (₺)
Installment
shares
Dec. 31, 2016
TRY (₺)
Dec. 31, 2018
AZN (₼)
shares
Sep. 30, 2017
TRY (₺)
May 25, 2017
USD ($)
Mar. 31, 2017
TRY (₺)
Disclosure of classes of share capital [line items]                      
Share capital represents | shares         2,200,000,000 2,200,000,000   2,200,000,000      
Share capital, issued and fully paid shares | shares         2,200,000,000 2,200,000,000   2,200,000,000      
Share capital, par value | ₺ / shares         ₺ 1            
Number of votes at a meeting in person or by proxy | Vote         1            
Number of shares pledged as security | shares         995,509 995,509          
First level legal reserves as percentage of distributable income per statutory accounts each year         5.00%            
Ceiling on the first legal reserves as percentage of paid-up capital         20.00%            
Second legal reserves         10.00%            
Minimum obligatory dividend pay-out as percentage of paid-up capital         5.00%            
Ceiling on the second legal reserves as percentage of paid-up capital         50.00%            
Repurchase of treasury shares | shares         8,434,204            
Purchase of treasury shares         ₺ 94,620,000   ₺ 65,607,000        
Dividends paid         1,949,379,000 ₺ 3,050,928,000 ₺ 51,416,000        
Turkcell [member]                      
Disclosure of classes of share capital [line items]                      
Dividend distribution proposed ₺ 1,900,000,000 ₺ 3,000,000,000 ₺ 3,000,000,000             $ 841,633  
Gross cash dividend proposed | (per share) ₺ 0.86364 ₺ 1.3636364 ₺ 0.3825604                
Dividends paid         ₺ 1,900,000 ₺ 3,000,000,000          
Number of installments of dividend | Installment         3 3          
Inteltek [member]                      
Disclosure of classes of share capital [line items]                      
Dividends paid       ₺ 28,402,000              
Dividend payables           ₺ 60,011,000     ₺ 28,402,000   ₺ 63,528,000
Inteltek [member] | Legal reserve [member]                      
Disclosure of classes of share capital [line items]                      
Dividend payables                 ₺ 9,507,000   11,585,000
Inteltek [member] | Interim dividend [member]                      
Disclosure of classes of share capital [line items]                      
Dividend payables                     ₺ 20,455,000
Azerinteltek [member]                      
Disclosure of classes of share capital [line items]                      
Dividend payables         ₺ 56,111,000     ₼ 34,797      
Bottom of range [member]                      
Disclosure of classes of share capital [line items]                      
Weighted average share price         10.01            
Top of range [member]                      
Disclosure of classes of share capital [line items]                      
Weighted average share price         ₺ 12.33