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Financial Instruments - Supplier Finance Agreement (Details) - MXN ($)
$ in Millions
Dec. 31, 2024
Dec. 31, 2023
Jan. 01, 2023
Dec. 31, 2022
Dec. 31, 2021
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]          
Carrying value $ 256,299 $ 232,897   $ 285,058 $ 252,940
Financial liabilities that are part of supplier finance arrangements          
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]          
Carrying value 10,590 2,416 $ 3,697    
Financial liabilities that are part of supplier finance arrangements for which suppliers have received payment          
Disclosure of financial liabilities that are part of supplier finance arrangements [line items]          
Carrying value $ 22,001 $ 823 $ 2,831