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Equity - Additional Information (Detail)
 12 Months Ended
May 25, 2017
TRY (₺)
₺ / shares
May 25, 2017
TRY (₺)
$ / shares
Dec. 31, 2017
TRY (₺)
Installment
Vote
₺ / shares
shares
Dec. 31, 2017
USD ($)
Installment
Vote
shares
Dec. 31, 2016
TRY (₺)
₺ / shares
shares
Dec. 31, 2016
TRY (₺)
$ / shares
shares
Dec. 31, 2015
TRY (₺)
Dec. 31, 2017
AZN (₼)
shares
Sep. 30, 2017
TRY (₺)
Sep. 30, 2017
AZN (₼)
May 25, 2017
USD ($)
Mar. 31, 2017
TRY (₺)
Dec. 31, 2016
USD ($)
shares
Jun. 30, 2016
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   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   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 1                    
Number of shares pledged as security | shares     995,509 995,509 995,509                  
First level legal reserves as percentage of distributable income per statutory accounts each year     5.00% 5.00%                    
Ceiling on the first legal reserves as percentage of paid-up capital     20.00% 20.00%                    
Second legal reserves     10.00% 10.00%                    
Minimum obligatory dividend pay-out as percentage of paid-up capital     5.00% 5.00%                    
Ceiling on the second legal reserves as percentage of paid-up capital     50.00% 50.00%                    
Repurchase of treasury shares | shares         6,815,563                  
Purchase of treasury shares         ₺ 65,607,000                  
Dividends paid     ₺ 3,050,928,000   51,416,000   ₺ 4,025,515,000              
Turkcell [member]                            
Disclosure of classes of share capital [line items]                            
Dividend distribution proposed ₺ 3,000,000,000 ₺ 3,000,000,000     ₺ 1,200,000 ₺ 1,200,000         $ 841,633,000   $ 340,987  
Gross cash dividend proposed | (per share) ₺ 1.3636364 ₺ 0.3825604     ₺ 0.5454545 ₺ 0.15                
Net cash dividend proposed | (per share)         ₺ 0.4636364 ₺ 0.13                
Dividends paid     ₺ 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                       ₺ 63,528,000   ₺ 20,455,000
Inteltek [member] | Legal Reserve [Member]                            
Disclosure of classes of share capital [line items]                            
Dividend payables         ₺ 11,585,000 ₺ 11,585,000                
Azerinteltek [member]                            
Disclosure of classes of share capital [line items]                            
Dividend payables     ₺ 11,620         ₼ 5,288 ₺ 27,838,000 ₼ 13,131,000        
Bottom of range [member]                            
Disclosure of classes of share capital [line items]                            
Weighted average share price         8.92                  
Top of range [member]                            
Disclosure of classes of share capital [line items]                            
Weighted average share price         ₺ 9.99