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Intangible Assets - Summary of Intangible Assets and Goodwill (Detail) - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2021
Dec. 31, 2020
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year ₺ 12,367,784 ₺ 11,308,062
Additions net of amortization 962,915 939,406
Disposals (768) (12,899)
Transfers 10,878 4,841
Impairment expenses/(reversals) (15,345) (18,460)
Disposal of subsidiaries   (51)
Acquisition through business combinations 191,292 78,828
Effects of movements in exchange rates 1,145,023 68,057
Balance at end of year 14,661,779 12,367,784
Cost [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 26,313,797 22,883,303
Additions 4,014,234 3,375,915
Disposals (131,768) (102,660)
Transfers 10,878 4,841
Disposal of subsidiaries   (22,590)
Acquisition through business combinations 191,292 78,828
Effects of movements in exchange rates 2,214,395 96,160
Balance at end of year 32,612,828 26,313,797
Cost [member] | Telecommunication licenses    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 9,188,733 9,132,617
Additions 279 695
Disposals (830) (32,445)
Transfers 18 10,110
Effects of movements in exchange rates 1,554,745 77,756
Balance at end of year 10,742,945 9,188,733
Cost [member] | Computer software    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 11,835,827 10,133,924
Additions 2,003,373 1,621,210
Disposals (73,673) (31,808)
Transfers 131,439 107,819
Disposal of subsidiaries   (10,164)
Effects of movements in exchange rates 540,882 14,846
Balance at end of year 14,437,848 11,835,827
Cost [member] | Transmission lines software [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 88,499 74,379
Additions 764 14,120
Balance at end of year 89,263 88,499
Cost [member] | Central betting system operating right [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year   12,426
Disposal of subsidiaries   (12,426)
Cost [member] | Indefeasible right of usage [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 159,995 117,618
Additions 6,127 9,709
Transfers   32,668
Balance at end of year 166,122 159,995
Cost [member] | Brand name [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 9,483 7,740
Additions 534 1,518
Disposals (48)  
Transfers 592  
Effects of movements in exchange rates 1,650 225
Balance at end of year 12,211 9,483
Cost [member] | Customer base [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 15,512 15,512
Balance at end of year 15,512 15,512
Cost [member] | Goodwill [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 40,010 32,834
Acquisition through business combinations 8,411 7,176
Balance at end of year 48,421 40,010
Cost [member] | Subscriber acquisition cost [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 4,787,853 3,248,859
Additions 1,804,368 1,573,606
Disposals (56,666) (37,307)
Effects of movements in exchange rates 110,045 2,695
Balance at end of year 6,645,600 4,787,853
Cost [member] | Electricity production license [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Acquisition through business combinations 182,881  
Balance at end of year 182,881  
Cost [member] | Other intangible assets    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 186,743 93,942
Additions 63,722 20,968
Disposals   (388)
Transfers (457) 39
Acquisition through business combinations   71,652
Effects of movements in exchange rates 6,274 530
Balance at end of year 256,282 186,743
Cost [member] | Construction in progress    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 1,142 13,452
Additions 135,067 134,089
Disposals (551) (712)
Transfers (120,714) (145,795)
Effects of movements in exchange rates 799 108
Balance at end of year 15,743 1,142
Accumulated depreciation, amortization and impairment [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (13,946,013) (11,575,241)
Additions - amortization (3,051,319) (2,436,509)
Disposals 131,000 89,761
Impairment expenses/(reversals) (15,345) (18,460)
Disposal of subsidiaries   22,539
Effects of movements in exchange rates (1,069,372) (28,103)
Balance at end of year (17,951,049) (13,946,013)
Accumulated depreciation, amortization and impairment [member] | Telecommunication licenses    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (4,253,203) (3,632,968)
Additions - amortization (662,888) (636,749)
Disposals 830 28,052
Transfers   7,700
Impairment expenses/(reversals) (26)  
Effects of movements in exchange rates (537,662) (19,238)
Balance at end of year (5,452,949) (4,253,203)
Accumulated depreciation, amortization and impairment [member] | Computer software    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (7,304,194) (6,290,133)
Additions - amortization (1,324,586) (1,023,203)
Disposals 73,471 24,295
Impairment expenses/(reversals) (15,319) (18,460)
Disposal of subsidiaries   10,164
Effects of movements in exchange rates (437,734) (6,857)
Balance at end of year (9,008,362) (7,304,194)
Accumulated depreciation, amortization and impairment [member] | Transmission lines software [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (79,073) (71,602)
Additions - amortization (846) (7,471)
Balance at end of year (79,919) (79,073)
Accumulated depreciation, amortization and impairment [member] | Central betting system operating right [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year   (12,375)
Disposal of subsidiaries   12,375
Accumulated depreciation, amortization and impairment [member] | Indefeasible right of usage [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (56,974) (40,420)
Additions - amortization (11,532) (8,854)
Transfers   (7,700)
Balance at end of year (68,506) (56,974)
Accumulated depreciation, amortization and impairment [member] | Brand name [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (7,040) (7,040)
Additions - amortization (32)  
Disposals 33  
Effects of movements in exchange rates (306)  
Balance at end of year (7,345) (7,040)
Accumulated depreciation, amortization and impairment [member] | Customer base [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (13,085) (12,648)
Additions - amortization (437) (437)
Balance at end of year (13,522) (13,085)
Accumulated depreciation, amortization and impairment [member] | Subscriber acquisition cost [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (2,133,755) (1,447,606)
Additions - amortization (995,510) (721,637)
Disposals 56,666 37,307
Effects of movements in exchange rates (93,030) (1,819)
Balance at end of year (3,165,629) (2,133,755)
Accumulated depreciation, amortization and impairment [member] | Electricity production license [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Additions - amortization (3,382)  
Balance at end of year (3,382)  
Accumulated depreciation, amortization and impairment [member] | Other intangible assets    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (98,689) (60,449)
Additions - amortization (52,106) (38,158)
Disposals   107
Effects of movements in exchange rates (640) (189)
Balance at end of year ₺ (151,435) ₺ (98,689)