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Revenue - Summary of Revenues by Recognition (Detail) - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Dec. 31, 2019
Disclosure of revenue [line items]      
Telecommunication services ₺ 29,204,447 ₺ 23,917,505 ₺ 20,878,303
Equipment revenues 4,160,713 3,316,984 2,246,040
Revenue from financial services 1,013,896 830,987 1,140,873
Call center revenues 569,568 431,971 312,443
Other 971,918 606,291 559,476
Total revenue 35,920,542 29,103,738 25,137,135
Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Telecommunication services 255,204 269,440  
Equipment revenues 3,938,447 3,228,752  
Revenue from financial services 379,558 231,021  
Other 50,036 57,758  
Total revenue 4,623,245 3,786,971  
Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Telecommunication services 28,949,243 23,648,065  
Equipment revenues 222,266 88,232  
Revenue from financial services 634,338 599,966  
Call center revenues 569,568 431,971  
Other 921,882 548,533  
Total revenue 31,297,297 25,316,767  
Turkcell Turkey segment [member]      
Disclosure of revenue [line items]      
Total revenue 27,048,370 22,687,330 19,820,352
Turkcell International segment [member]      
Disclosure of revenue [line items]      
Total revenue 3,650,728 2,454,455 1,908,086
Techfin segment [member]      
Disclosure of revenue [line items]      
Total revenue 1,013,896 830,987 1,143,183
All other segments [member]      
Disclosure of revenue [line items]      
Total revenue 4,207,548 3,130,966 2,265,514
Operating segments [member] | Turkcell Turkey segment [member]      
Disclosure of revenue [line items]      
Telecommunication services 25,791,341 21,676,482 19,157,657
Equipment revenues 1,257,639 1,006,576 637,029
Call center revenues 46,268 34,383 69,777
Other 128,295 105,431 89,905
Total revenue 27,223,543 22,822,872 19,954,368
Operating segments [member] | Turkcell Turkey segment [member] | Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Telecommunication services 229,120 254,619  
Equipment revenues 1,035,373 918,344  
Other 6,013 10  
Total revenue 1,270,506 1,172,973  
Operating segments [member] | Turkcell Turkey segment [member] | Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Telecommunication services 25,562,221 21,421,863  
Equipment revenues 222,266 88,232  
Call center revenues 46,268 34,383  
Other 122,282 105,421  
Total revenue 25,953,037 21,649,899  
Operating segments [member] | Turkcell International segment [member]      
Disclosure of revenue [line items]      
Telecommunication services 3,479,631 2,299,682 1,780,793
Equipment revenues 120,113 122,901 115,905
Call center revenues 48,060 34,566 17,008
Other 102,277 85,261 89,083
Total revenue 3,750,081 2,542,410 2,002,789
Operating segments [member] | Turkcell International segment [member] | Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Telecommunication services 26,085 14,821  
Equipment revenues 120,113 122,901  
Other 351 9,132  
Total revenue 146,549 146,854  
Operating segments [member] | Turkcell International segment [member] | Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Telecommunication services 3,453,546 2,284,861  
Call center revenues 48,060 34,566  
Other 101,926 76,129  
Total revenue 3,603,532 2,395,556  
Operating segments [member] | Techfin segment [member]      
Disclosure of revenue [line items]      
Revenue from financial services 1,075,742 845,189 1,141,712
Other     2,311
Total revenue 1,075,742 845,189 1,144,023
Operating segments [member] | Techfin segment [member] | Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Revenue from financial services 441,404 245,223  
Total revenue 441,404 245,223  
Operating segments [member] | Techfin segment [member] | Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Revenue from financial services 634,338 599,966  
Total revenue 634,338 599,966  
Operating segments [member] | All other segments [member]      
Disclosure of revenue [line items]      
Equipment revenues 2,832,180 2,208,169 1,497,765
Call center revenues 540,553 415,366 308,126
Other 1,557,286 979,701 855,553
Total revenue 4,930,019 3,603,236 2,661,444
Operating segments [member] | All other segments [member] | Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Equipment revenues 2,832,180 2,208,169  
Other 46,625 52,958  
Total revenue 2,878,805 2,261,127  
Operating segments [member] | All other segments [member] | Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Call center revenues 540,553 415,366  
Other 1,510,661 926,743  
Total revenue 2,051,214 1,342,109  
Intersegment eliminations [member]      
Disclosure of revenue [line items]      
Telecommunication services (66,525) (58,659) (60,147)
Equipment revenues (49,219) (20,662) (4,659)
Revenue from financial services (61,846) (14,202) (839)
Call center revenues (65,313) (52,344) (82,468)
Other (815,940) (564,102) (477,376)
Total revenue (1,058,843) (709,969) (625,489)
Intersegment eliminations [member] | Goods or services transferred at point in time [member]      
Disclosure of revenue [line items]      
Telecommunication services (1)    
Equipment revenues (49,219) (20,662)  
Revenue from financial services (61,846) (14,202)  
Other (2,953) (4,342)  
Total revenue (114,019) (39,206)  
Intersegment eliminations [member] | Goods or services transferred over time [member]      
Disclosure of revenue [line items]      
Telecommunication services (66,524) (58,659)  
Call center revenues (65,313) (52,344)  
Other (812,987) (559,760)  
Total revenue (944,824) (670,763)  
Intersegment eliminations [member] | Turkcell Turkey segment [member]      
Disclosure of revenue [line items]      
Total revenue (175,173) (135,542) (134,016)
Intersegment eliminations [member] | Turkcell International segment [member]      
Disclosure of revenue [line items]      
Total revenue (99,353) (87,955) (94,703)
Intersegment eliminations [member] | Techfin segment [member]      
Disclosure of revenue [line items]      
Total revenue (61,846) (14,202) (840)
Intersegment eliminations [member] | All other segments [member]      
Disclosure of revenue [line items]      
Total revenue ₺ (722,471) ₺ (472,270) ₺ (395,930)