v3.26.1
Intangible Assets - Carrying Amounts of Goodwill and Distribution Rights (Details)
$ in Millions, $ in Millions
Dec. 31, 2025
USD ($)
 [1]
Dec. 31, 2025
MXN ($)
Dec. 31, 2024
MXN ($)
Dec. 31, 2023
MXN ($)
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill $ 8,081 $ 145,506 $ 146,336 $ 143,218
Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   96,654 97,198  
Mexico | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   56,971 57,689  
Guatemala | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   1,608 1,695  
Nicaragua | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   371 404  
Costa Rica | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   1,580 1,439  
Panama | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   1,086 1,170  
Colombia | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   4,227 3,638  
Brazil | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   27,996 28,199  
Argentina | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   422 512  
Uruguay | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | Coca-Cola FEMSA        
Disclosure of information for cash-generating units [line items]        
Intangible assets and goodwill   $ 2,393 $ 2,452  
[1] Convenience translation to U.S. dollars ($) – See Note 2.2.4