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Financial Instruments - Debt (Details)
€ in Millions, $ in Millions
Dec. 31, 2024
MXN ($)
Dec. 31, 2023
MXN ($)
Feb. 28, 2023
EUR (€)
Dec. 31, 2022
MXN ($)
Dec. 31, 2021
MXN ($)
Disclosure of Financial Assets and Financial Liabilities [Line Items]          
Carrying value $ 256,299 $ 232,897   $ 285,058 $ 252,940
Face amount 67,216 52,369      
Senior Unsecured Exchangeable Bonds          
Disclosure of Financial Assets and Financial Liabilities [Line Items]          
Fair value 0        
Face amount | €     € 500    
Bank loans and notes payables          
Disclosure of Financial Assets and Financial Liabilities [Line Items]          
Carrying value 148,204 136,824      
Fair value $ 132,174 $ 125,043