v3.26.1
Income tax, Movement in Deferred Tax Balances (Details) - MXN ($)
 12 Months Ended
Dec. 31, 2025
Dec. 31, 2024
Dec. 31, 2023
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance $ (4,200,798,599) $ (4,031,599,864) $ (4,353,712,591)
Recognized in profit and loss 5,598,444 (68,751,097) 55,155,403
Recognized in OCI 1,134,773,591 (100,447,638) 266,957,324
Deferred tax balances, Ending Balance (3,060,426,564) (4,200,798,599) (4,031,599,864)
Accruals and borrowing cost [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 23,045,513 3,370,885 147,482
Recognized in profit and loss 31,312,320 19,674,628 3,223,403
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance 54,357,833 23,045,513 3,370,885
Debt cost to be amortized [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (69,902,187) 0  
Recognized in profit and loss 2,554,827 (69,902,187)  
Recognized in OCI 0 0  
Deferred tax balances, Ending Balance (67,347,360) (69,902,187) 0
Advance Customers [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 5,196,925 46,637,589 0
Recognized in profit and loss 29,576,603 (41,440,664) 46,637,589
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance 34,773,528 5,196,925 46,637,589
Lease Liabilities [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 62,014,298 62,388,460 0
Recognized in profit and loss (13,364,025) (374,162) 62,388,460
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance 48,650,273 62,014,298 62,388,460
Equipment rent [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 84,603,406 0  
Recognized in profit and loss (84,603,406) 84,603,406  
Recognized in OCI 0 0  
Deferred tax balances, Ending Balance 0 84,603,406 0
Employees' Benefits [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 3,151,126 2,629,807 1,996,298
Recognized in profit and loss 816,118 526,081 670,889
Recognized in OCI (409,652) (4,762) (37,380)
Deferred tax balances, Ending Balance 3,557,592 3,151,126 2,629,807
Employees' Statutory Profit Sharing [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 780,459 672,518 641,950
Recognized in profit and loss (205,119) 107,941 30,568
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance 575,340 780,459 672,518
Prepayments [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (12,868,926) (3,999,701) (1,422,966)
Recognized in profit and loss 10,986,160 (8,869,225) (2,576,735)
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance (1,882,766) (12,868,926) (3,999,701)
Property, Plant and Equipment [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance   (39,818,079) 236,862
Recognized in profit and loss     (40,054,941)
Recognized in OCI     0
Deferred tax balances, Ending Balance     (39,818,079)
Property, Plant and Equipment [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (95,323,604) (39,818,079)  
Recognized in profit and loss 26,808,092 (55,505,525)  
Recognized in OCI 0 0  
Deferred tax balances, Ending Balance (68,515,512) (95,323,604) (39,818,079)
PP&E Surplus [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (3,548,469,730) (3,471,731,220) (3,744,476,101)
Recognized in profit and loss 9,023,076 23,704,366 5,750,177
Recognized in OCI 1,135,183,243 (100,442,876) 266,994,704
Deferred tax balances, Ending Balance (2,404,263,411) (3,548,469,730) (3,471,731,220)
PP&E (capitalized foreign exchange rate and interest expense) [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (220,604,535) (231,042,798) (226,499,908)
Recognized in profit and loss 0 10,438,263 (4,542,890)
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance (220,604,535) (220,604,535) (231,042,798)
Investment Properties [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (372,371,632) (300,519,080) (326,498,611)
Recognized in profit and loss (22,500,000) (71,852,552) 25,979,531
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance (394,871,632) (372,371,632) (300,519,080)
Right of use of assets [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance (60,049,712) (65,111,127) 0
Recognized in profit and loss 15,193,798 5,061,415 (65,111,127)
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance (44,855,914) (60,049,712) (65,111,127)
Derivatives [Member]      
Deferred tax expense (income) [abstract]      
Deferred tax balances, Beginning Balance 0 (35,077,118) (57,837,597)
Recognized in profit and loss 0 35,077,118 22,760,479
Recognized in OCI 0 0 0
Deferred tax balances, Ending Balance $ 0 $ 0 $ (35,077,118)