v3.26.1
Intangible Assets - Key Assumptions by CGU for Impairment Test (Details)
$ in Millions
 12 Months Ended
Dec. 31, 2025
MXN ($)
Dec. 31, 2025
USD ($)
Dec. 31, 2025
MXN ($)
Dec. 31, 2024
MXN ($)
Dec. 31, 2023
MXN ($)
Disclosure of information for cash-generating units [line items]          
Risk premium basis points 0.0100 0.0050 0.0050    
Impairment of long-lived assets $ 0 $ 0 [1] $ 0 $ 2,801,000,000 $ 1,248,000,000
Mexico          
Disclosure of information for cash-generating units [line items]          
Impairment of long-lived assets       $ 1,975,000,000  
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]          
Pre-tax WACC 8.80% 8.80% 8.80% 9.00%  
Post-tax WACC 6.20% 6.20% 6.20% 6.30%  
Mexico | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.90% 3.90% 3.90%    
Expected Volume Growth Rates 5.00% 5.00% 5.00%    
Mexico | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       4.10%  
Expected Volume Growth Rates       5.40%  
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]          
Pre-tax WACC 11.40% 11.40% 11.40% 10.90%  
Post-tax WACC 7.20% 7.20% 7.20% 6.80%  
Brazil | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.90% 3.90% 3.90%    
Expected Volume Growth Rates 3.30% 3.30% 3.30%    
Brazil | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       3.60%  
Expected Volume Growth Rates       4.10%  
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]          
Pre-tax WACC 10.50% 10.50% 10.50% 12.00%  
Post-tax WACC 7.90% 7.90% 7.90% 7.90%  
Colombia | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.40% 3.40% 3.40%    
Expected Volume Growth Rates 3.50% 3.50% 3.50%    
Colombia | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       3.10%  
Expected Volume Growth Rates       6.60%  
Colombia | Health Division          
Disclosure of information for cash-generating units [line items]          
Impairment charge, intangibles     $ 762,000,000 $ 660,000,000  
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]          
Pre-tax WACC 16.80% 16.80% 16.80% 16.00%  
Post-tax WACC 11.80% 11.80% 11.80% 12.00%  
Argentina | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 10.10% 10.10% 10.10%    
Expected Volume Growth Rates 5.20% 5.20% 5.20%    
Argentina | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       35.10%  
Expected Volume Growth Rates       4.50%  
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]          
Pre-tax WACC 8.80% 8.80% 8.80% 9.50%  
Post-tax WACC 6.80% 6.80% 6.80% 7.20%  
Guatemala | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.80% 3.80% 3.80%    
Expected Volume Growth Rates 7.30% 7.30% 7.30%    
Guatemala | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       4.00%  
Expected Volume Growth Rates       11.90%  
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]          
Pre-tax WACC 10.80% 10.80% 10.80% 12.00%  
Post-tax WACC 7.90% 7.90% 7.90% 8.50%  
Costa Rica | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 2.30% 2.30% 2.30%    
Expected Volume Growth Rates 6.10% 6.10% 6.10%    
Costa Rica | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       2.80%  
Expected Volume Growth Rates       6.60%  
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]          
Pre-tax WACC 21.60% 21.60% 21.60% 23.00%  
Post-tax WACC 14.10% 14.10% 14.10% 13.10%  
Nicaragua | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.30% 3.30% 3.30%    
Expected Volume Growth Rates 6.20% 6.20% 6.20%    
Nicaragua | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       3.50%  
Expected Volume Growth Rates       6.50%  
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]          
Pre-tax WACC 11.30% 11.30% 11.30% 11.70%  
Post-tax WACC 8.60% 8.60% 8.60% 9.10%  
Panama | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 1.00% 1.00% 1.00%    
Expected Volume Growth Rates 5.60% 5.60% 5.60%    
Panama | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       1.80%  
Expected Volume Growth Rates       6.30%  
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]          
Pre-tax WACC 9.00% 9.00% 9.00% 9.50%  
Post-tax WACC 6.80% 6.80% 6.80% 7.10%  
Uruguay | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 4.50% 4.50% 4.50%    
Expected Volume Growth Rates 4.50% 4.50% 4.50%    
Uruguay | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       5.10%  
Expected Volume Growth Rates       4.20%  
Chile | Health Division          
Disclosure of information for cash-generating units [line items]          
Impairment charge, intangibles     $ 6,742,000,000 $ 6,383,000,000  
Chile | Health Division | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Pre-tax WACC 8.20% 8.20% 8.20% 6.80%  
Post-tax WACC 7.20% 7.20% 7.20% 5.90%  
Chile | Health Division | 2026 - 2030 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 3.20% 3.20% 3.20%    
Expected Volume Growth Rates 3.00% 3.00% 3.00%    
Chile | Health Division | 2025-2029 | Coca-Cola FEMSA          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       3.10%  
Expected Volume Growth Rates       1.90%  
United States | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant          
Disclosure of information for cash-generating units [line items]          
Pre-tax WACC 5.40% 5.40% 5.40% 5.70%  
Post-tax WACC 5.00% 5.00% 5.00% 5.30%  
Impairment charge, intangibles     $ 22,642,000,000    
United States | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2026 - 2030          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation 0.90% 0.90% 0.90%    
Expected Volume Growth Rates 5.70% 5.70% 5.70%    
United States | Aggregate cash-generating units for which amount of goodwill or intangible assets with indefinite useful lives is not significant | 2025-2029          
Disclosure of information for cash-generating units [line items]          
Expected Annual Long-Term Inflation       1.00%  
Expected Volume Growth Rates       4.50%  
South America | Health Division          
Disclosure of information for cash-generating units [line items]          
Impairment charge, intangibles     $ 7,523,000,000    
Ecuador | Health Division          
Disclosure of information for cash-generating units [line items]          
Impairment charge, intangibles     $ 19,000,000 $ 31,000,000  
[1] Convenience translation to U.S. dollars ($) – See Note 2.2.4