v3.26.1
Material Accounting Policies - Intangibles, Impairment, Benefits, Selling, Taxes, Share-Based Payments Arrangements (Details)
$ in Millions
12 Months Ended
Dec. 31, 2025
MXN ($)
agreement
Dec. 31, 2025
USD ($)
age
Dec. 31, 2025
MXN ($)
agreement
age
Dec. 31, 2024
MXN ($)
Dec. 31, 2023
MXN ($)
Disclosure of significant accounting policies [line items]          
Intangible assets renewable term   10 years 10 years    
Impairment of long-lived assets $ 0 $ 0 [1] $ 0 $ 2,801,000,000 $ 1,248,000,000
Number of years of service for retirement benefits   10 years 10 years    
Benefit payment, number of days wages   12 days 12 days    
Years of service for seniority retirement benefits   15 years 15 years    
Current contract liabilities | $ $ 526,000,000   $ 526,000,000 $ 418,000,000  
Income tax rate   30.00% 30.00% 30.00% 30.00%
Percentage of share options granted in share based payment arrangement   33.00% 33.00%    
Share based payment arrangement, vesting period   3 years 3 years    
Mexico          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 4   4    
Impairment of long-lived assets | $       $ 1,975,000,000  
Minimum age for retirement benefits | age   60 60    
Income tax rate   30.00% 30.00% 30.00% 30.00%
Brazil          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   34.00% 34.00% 34.00% 34.00%
Guatemala          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 3   3    
Number of bottling agreements, after renewal 2   2    
Income tax rate   25.00% 25.00% 25.00% 25.00%
Argentina          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   35.00% 35.00% 35.00% 35.00%
Colombia          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   35.00% 35.00% 35.00% 35.00%
Panama          
Disclosure of significant accounting policies [line items]          
Income tax rate   25.00% 25.00% 25.00% 25.00%
Costa Rica          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   30.00% 30.00% 30.00% 30.00%
Nicaragua          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   30.00% 30.00% 30.00% 30.00%
Uruguay          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Income tax rate   25.00% 25.00% 25.00% 25.00%
Venezuela          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Bottom of range          
Disclosure of significant accounting policies [line items]          
Revenue, payment terms 0 days   0 days    
Bottom of range | Guatemala          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Bottom of range | Panama          
Disclosure of significant accounting policies [line items]          
Number of bottling agreements 1   1    
Top of range          
Disclosure of significant accounting policies [line items]          
Revenue, payment terms 90 days   90 days    
Customer-related intangible assets | Bottom of range          
Disclosure of significant accounting policies [line items]          
Useful life measured as period of time, intangible assets other than goodwill   10 years 10 years    
Customer-related intangible assets | Top of range          
Disclosure of significant accounting policies [line items]          
Useful life measured as period of time, intangible assets other than goodwill   12 years 12 years    
Information technology and management system costs | Bottom of range          
Disclosure of significant accounting policies [line items]          
Useful life measured as period of time, intangible assets other than goodwill   3 years 3 years    
Information technology and management system costs | Top of range          
Disclosure of significant accounting policies [line items]          
Useful life measured as period of time, intangible assets other than goodwill   11 years 11 years    
Long-term alcohol licenses          
Disclosure of significant accounting policies [line items]          
Useful life measured as period of time, intangible assets other than goodwill   12 years 12 years    
[1] Convenience translation to U.S. dollars ($) – See Note 2.2.4