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Derivative financial instruments - Cash flow sensitivity (Detail) ₺ in Thousands | Dec. 31, 2021 TRY (₺) | Dec. 31, 2020 TRY (₺)
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Cash flow sensitivity analysis for variable rate instruments [line items] |  |
Change in interest rate for sensitivity analysis | 0.0100 |
Change in foreign exchange for sensitivity analysis | 10.00% |
Interest rate risk and currency risk [member] | Derivatives [member] |  |
Cash flow sensitivity analysis for variable rate instruments [line items] |  |
Increase (decrease) in profit (loss) due to potential increase in interest rate | ₺ 1,359,661 | ₺ 1,208,470
Increase (decrease) in profit (loss) due to potential decrease in interest rate | 2,196,641 | 895,443
Increase (decrease) in equity due to potential increase in interest rate | (841,156) | (505,640)
Increase (decrease) in equity due to potential decrease in interest rate | (1,631,868) | (235,292)
Interest rate risk and currency risk [member] | Participating cross currency swap contracts [member] |  |
Cash flow sensitivity analysis for variable rate instruments [line items] |  |
Increase (decrease) in profit (loss) due to potential increase in interest rate | 1,199,942 | 1,158,627
Increase (decrease) in profit (loss) due to potential decrease in interest rate | 2,230,500 | 849,915
Increase (decrease) in equity due to potential increase in interest rate | (620,462) | (516,772)
Increase (decrease) in equity due to potential decrease in interest rate | (1,445,257) | (247,934)
Interest rate risk and currency risk [member] | Cross currency swap contracts [member] |  |
Cash flow sensitivity analysis for variable rate instruments [line items] |  |
Increase (decrease) in profit (loss) due to potential increase in interest rate | 159,719 | 49,843
Increase (decrease) in profit (loss) due to potential decrease in interest rate | (33,859) | 45,528
Increase (decrease) in equity due to potential increase in interest rate | (220,694) | 11,132
Increase (decrease) in equity due to potential decrease in interest rate | ₺ (186,611) | ₺ 12,642

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