v3.26.1
Income Taxes - Tax (charge) credit relating to components of other comprehensive income (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2026
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Other comprehensive loss, Before Tax        
Remeasurement of post-employment benefit obligations   $ (88,707) $ (62,779) $ 83,935
Exchange differences on translating foreign operations   (130,627) 285,502 (758,835)
Derivative financial instruments cash flow hedges, Before Tax   (2,242,294) 1,857,456 (287,536)
Open Ended Fund, Before Tax   149,092 (66,098) (741)
Other equity instruments, Before Tax   898,085 (202,208) (698,903)
Share of income of associates and joint ventures, Before Tax   3,905,450 (7,061,676) 4,278,531
Other comprehensive income (loss) before income taxes   2,490,999 (5,249,803) 2,616,451
Other comprehensive loss, Tax Credit (Charge)        
Remeasurement of post-employment benefit obligations, Tax (Charge) Credit   26,612 18,833 (25,181)
Exchange differences on translating foreign operations, Tax (Charge) Credit   (1,868,236) 2,683,967 (1,975,708)
Derivative financial instruments cash flow hedges, Tax (Charge) Credit   672,688 (557,237) 86,261
Open Ended Fund, Tax (Charge) Credit   (44,728) 19,829 222
Other equity instruments, Tax (Charge) Credit   (269,425) 60,662 209,671
Other comprehensive income, Tax (Charge) Credit   (1,483,089) 2,226,054 (1,704,735)
Current tax   (1,868,236) 2,683,967 (1,975,708)
Deferred tax   $ 385,147 (457,913) 270,973
Annual withholding tax rate to payment of interest 0.90% 0.50%    
Other comprehensive loss, After Tax        
Remeasurement of post-employment benefit obligations, After Tax   $ (62,095) (43,946) 58,754
Exchange differences on translating foreign operations, After Tax   (1,998,863) 2,969,469 (2,734,543)
Derivative financial instruments cash flow hedges, After Tax   (1,569,606) 1,300,219 (201,275)
Open Ended Fund, After Tax   104,364 (46,269) (519)
Other equity instruments, After Tax   628,660 (141,546) (489,232)
Share of income of associates and joint ventures, After Tax   3,905,450 (7,061,676) 4,278,531
Total other comprehensive income   $ 1,007,910 $ (3,023,749) $ 911,716