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Revenue - Summary of Revenue (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
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 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] | 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] | 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
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] | 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)