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Intangible Assets - Summary of Intangible Assets and Goodwill (Detail) - TRY (₺)
₺ in Thousands
 12 Months Ended
Dec. 31, 2023
Dec. 31, 2022
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year ₺ 61,498,735 ₺ 67,918,125
Additions net of amortization (242,958) (4,364,869)
Disposals (226,159) (63,000)
Transfers 523,149  
Assets held for sale (3,299,805)  
Impairment (expenses)/reversals (23,372) (85,716)
Effects of movements in exchange rates 281,807 (1,905,805)
Balance at end of year 58,511,397 61,498,735
Gross Carrying Amount    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 204,450,114 196,896,845
Additions 17,093,257 11,152,761
Disposals (495,718) (451,780)
Transfers 523,149  
Assets held for sale (7,085,969)  
Impairment (expenses)/reversals (7,176)  
Effects of movements in exchange rates 735,241 (3,147,712)
Balance at end of year 215,212,898 204,450,114
Gross Carrying Amount | Telecommunication licenses    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 70,152,194 73,385,234
Additions 3,613,018 1,664
Disposals (59,797) (57,933)
Transfers 181,814 1,504
Assets held for sale (5,149,479)  
Effects of movements in exchange rates (430,834) (3,178,275)
Balance at end of year 68,306,916 70,152,194
Gross Carrying Amount | Computer software    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 95,767,623 89,532,740
Additions 7,908,723 5,779,710
Disposals (173,279) (280,355)
Transfers 453,280 340,680
Assets held for sale (1,359,776)  
Effects of movements in exchange rates 1,087,039 394,848
Balance at end of year 103,683,610 95,767,623
Gross Carrying Amount | Transmission lines software [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 1,030,729 988,369
Additions 972 1,112
Disposals (3,688)  
Effects of movements in exchange rates 25,231 41,248
Balance at end of year 1,053,244 1,030,729
Gross Carrying Amount | Indefeasible right of usage [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 1,012,694 1,012,694
Additions 2,943  
Balance at end of year 1,015,637 1,012,694
Gross Carrying Amount | Brand name [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 11,292 13,996
Additions 53 611
Disposals (49) (545)
Transfers 188 124
Assets held for sale (614)  
Effects of movements in exchange rates (102) (2,894)
Balance at end of year 10,768 11,292
Gross Carrying Amount | Customer base [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 48,967 65,107
Effects of movements in exchange rates (9,872) (16,140)
Balance at end of year 39,095 48,967
Gross Carrying Amount | Goodwill [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 419,754 427,353
Impairment (expenses)/reversals (7,176)  
Effects of movements in exchange rates (4,649) (7,599)
Balance at end of year 407,929 419,754
Gross Carrying Amount | Subscriber acquisition cost [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 34,103,021 29,629,666
Additions 5,031,195 4,875,036
Disposals (125,098) (111,624)
Assets held for sale (575,070)  
Effects of movements in exchange rates 84,049 (290,057)
Balance at end of year 38,518,097 34,103,021
Gross Carrying Amount | Electricity production license [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 709,869 778,332
Effects of movements in exchange rates (41,875) (68,463)
Balance at end of year 667,994 709,869
Gross Carrying Amount | Other intangible assets    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 1,118,057 935,930
Additions 164,935 200,535
Disposals (860) (733)
Transfers (23,060) 3
Assets held for sale (161)  
Effects of movements in exchange rates (11,527) (17,678)
Balance at end of year 1,247,384 1,118,057
Gross Carrying Amount | Construction in progress    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year 75,914 127,424
Additions 371,418 294,093
Disposals (132,947) (590)
Transfers (89,073) (342,311)
Assets held for sale (869)  
Effects of movements in exchange rates 37,781 (2,702)
Balance at end of year 262,224 75,914
Accumulated depreciation, amortization and impairment [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (142,951,379) (128,978,720)
Additions - amortization (17,336,215) (15,517,630)
Disposals 269,559 388,780
Assets held for sale 3,786,164  
Impairment (expenses)/reversals (16,196) (85,716)
Effects of movements in exchange rates (453,434) 1,241,907
Balance at end of year (156,701,501) (142,951,379)
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 (47,255,448) (44,068,178)
Additions - amortization (4,275,416) (4,523,381)
Disposals 4,766 3,162
Assets held for sale 3,194,034  
Impairment (expenses)/reversals (3) (506)
Effects of movements in exchange rates 244,068 1,333,455
Balance at end of year (48,087,999) (47,255,448)
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 (72,926,450) (66,868,545)
Additions - amortization (6,425,747) (5,737,378)
Disposals 135,165 272,867
Assets held for sale 204,567  
Impairment (expenses)/reversals (15,716) (101,269)
Effects of movements in exchange rates (980,719) (492,125)
Balance at end of year (80,008,900) (72,926,450)
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 (1,015,248) (1,001,840)
Additions - amortization (26,303) (31,887)
Disposals 3,688  
Impairment (expenses)/reversals   16,604
Effects of movements in exchange rates (5,381) 1,875
Balance at end of year (1,043,244) (1,015,248)
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 (579,827) (522,256)
Additions - amortization (63,302) (58,315)
Effects of movements in exchange rates 454 744
Balance at end of year (642,675) (579,827)
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 (16,512) (27,544)
Additions - amortization (65) (117)
Disposals 21 394
Assets held for sale 340  
Effects of movements in exchange rates 6,401 10,755
Balance at end of year (9,815) (16,512)
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 (35,051) (49,300)
Additions - amortization (2,005)  
Effects of movements in exchange rates 8,714 14,249
Balance at end of year (28,342) (35,051)
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 (20,368,047) (15,840,829)
Additions - amortization (6,382,401) (5,010,502)
Disposals 125,098 111,624
Assets held for sale 387,076  
Effects of movements in exchange rates 267,239 371,660
Balance at end of year (25,971,035) (20,368,047)
Accumulated depreciation, amortization and impairment [member] | Electricity production license [member]    
Disclosure of reconciliation of changes in intangible assets and goodwill [line items]    
Balance at beginning of year (9,938) (9,154)
Additions - amortization (30,167)  
Effects of movements in exchange rates (12,338) (784)
Balance at end of year (52,443) (9,938)
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 (744,858) (591,074)
Additions - amortization (130,809) (156,050)
Disposals 821 733
Assets held for sale 147  
Impairment (expenses)/reversals (477) (545)
Effects of movements in exchange rates 18,128 2,078
Balance at end of year ₺ (857,048) ₺ (744,858)