v3.25.1
Income Taxes - Roll forward of deferred income tax assets and liabilities (Details) - MXN ($)
$ in Thousands
 12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period $ 17,149,590 $ 17,520,493
Credit (Charge) to Consolidated Statement of Income 3,549,896 (696,880)
(Charge) to Consolidated Statement of Income (Discontinued Operations) 5,151 (107,650)
Credit (Charge) to Other Comprehensive Income and Retained Earnings (473,502) 325,977
Deferred income tax account at end of period 19,379,313 17,149,590
Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (851,822)  
Accrued liabilities    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 3,115,699 4,312,485
Credit (Charge) to Consolidated Statement of Income 220,536 (1,196,786)
Deferred income tax account at end of period 3,058,391 3,115,699
Accrued liabilities | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (277,844)  
Allowance for expected credit losses    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 606,257 607,773
Credit (Charge) to Consolidated Statement of Income (104,516) (1,516)
Deferred income tax account at end of period 458,366 606,257
Allowance for expected credit losses | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (43,375)  
Customer advances    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 1,583,352 2,335,751
Credit (Charge) to Consolidated Statement of Income 239,752 (752,399)
Deferred income tax account at end of period 1,820,602 1,583,352
Customer advances | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (2,502)  
Property, plant and equipment, net    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 4,643,270 3,923,889
Credit (Charge) to Consolidated Statement of Income 2,247,022 719,381
Deferred income tax account at end of period 6,798,230 4,643,270
Property, plant and equipment, net | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (92,062)  
Financial expenses pending tax deduction    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 1,112,726 1,040,210
Credit (Charge) to Consolidated Statement of Income 3,850,444 72,516
Deferred income tax account at end of period 4,904,829 1,112,726
Financial expenses pending tax deduction | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (58,341)  
Investments    
Roll forward of deferred income tax assets and liabilities    
Credit (Charge) to Consolidated Statement of Income 398  
Deferred income tax account at end of period 398  
Tax loss carryforwards    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 9,838,300 10,116,568
Credit (Charge) to Consolidated Statement of Income (3,054,606) (278,268)
Deferred income tax account at end of period 6,771,667 9,838,300
Tax loss carryforwards | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (12,027)  
Deferred income tax assets of certain foreign subsidiaries    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period 335,651 246,813
Credit (Charge) to Consolidated Statement of Income 97,627 88,838
Deferred income tax account at end of period 433,278 335,651
Investments    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period (722,530) (700,285)
Credit (Charge) to Consolidated Statement of Income 657,628 (287,142)
Credit (Charge) to Other Comprehensive Income and Retained Earnings 64,902 264,897
Deferred income tax account at end of period   (722,530)
Prepaid expenses and other items    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period (476,430) (1,589,317)
Credit (Charge) to Consolidated Statement of Income (340,671) 1,138,068
(Charge) to Consolidated Statement of Income (Discontinued Operations) 5,151  
Credit (Charge) to Other Comprehensive Income and Retained Earnings 18,833 (25,181)
Deferred income tax account at end of period (824,656) (476,430)
Prepaid expenses and other items | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) (31,539)  
Derivative financial instruments    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period (44,618) (130,879)
Credit (Charge) to Consolidated Statement of Income 51,456  
Credit (Charge) to Other Comprehensive Income and Retained Earnings (557,237) 86,261
Deferred income tax account at end of period (550,399) (44,618)
Intangible assets and transmission rights    
Roll forward of deferred income tax assets and liabilities    
Deferred income tax account at beginning of period (2,842,087) (2,642,515)
Credit (Charge) to Consolidated Statement of Income (315,174) (199,572)
Deferred income tax account at end of period (3,491,393) $ (2,842,087)
Intangible assets and transmission rights | Spun-off Businesses    
Roll forward of deferred income tax assets and liabilities    
(Charge) to Consolidated Statement of Income (Discontinued Operations) $ (334,132)