Earnings per share - Basic and diluted earnings per share (Details) - TRY (₺) ₺ / shares in Units, ₺ in Thousands	12 Months Ended
Dec. 31, 2025	Dec. 31, 2024	Dec. 31, 2023
Earnings per share
Profit attributable to owners of the Company	₺ 17,604,007	₺ 30,790,359	₺ 23,724,634
Weighted average number of shares	2,178,379,952	2,181,023,660	2,182,106,193
Basic earnings per share for profit attributable to owners of the Company (in full TL)	₺ 8.08	₺ 14.12	₺ 10.87
Diluted earnings per share for profit attributable to owners of the Company (in full TL)	₺ 8.08	₺ 14.12	₺ 10.87
Profit from continuing operations attributable to owners of the Company	₺ 17,791,410	₺ 14,523,109	₺ 20,002,327
Weighted average number of shares	2,178,379,952	2,181,023,660	2,182,106,193
Basic earnings per share for profit from continuing operations attributable to owners of the Company (in full TL)	₺ 8.17	₺ 6.66	₺ 9.17
Diluted earnings per share for profit from continuing operations attributable to owners of the Company (in full TL)	₺ 8.17	₺ 6.66	₺ 9.17
Profit (loss) from discontinued operations	₺ (187,403)	₺ 16,267,250	₺ 3,722,307
Weighted average number of shares	2,178,379,952	2,181,023,660	2,182,106,193
Basic earnings per share for profit from discontinued operations attributable to owners of the Company (in full TL)	₺ (0.09)	₺ 7.46	₺ 1.71
Diluted earnings per share for profit from discontinued operations attributable to owners of the Company (in full TL)	₺ (0.09)	₺ 7.46	₺ 1.71

The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator).

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The profit (loss) from continuing operations attributable to ordinary equity holders of the parent entity. [Refer: Continuing operations, unless line item indicates otherwise [member]; Profit (loss) from continuing operations]

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