Financial Instruments - Commodity Price Contracts (Details) - MXN ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Disclosure of detailed information about hedges [line items]
Face amount	$ 52,369	$ 79,088
2024
Disclosure of detailed information about hedges [line items]
Face amount	10,052
2025
Disclosure of detailed information about hedges [line items]
Fair value Liability	72	0
Coca-Cola FEMSA \| Commodity price contracts \| Sugar Price Contracts \| 2024
Disclosure of detailed information about hedges [line items]
Face amount	2,593	1,688
Fair value Liability	(130)	(46)
Fair Value Asset	206	328
Coca-Cola FEMSA \| Commodity price contracts \| Sugar Price Contracts \| 2025
Disclosure of detailed information about hedges [line items]
Face amount	745	468
Fair Value Asset	0	21
Coca-Cola FEMSA \| Commodity price contracts \| Aluminum price contracts \| 2024
Disclosure of detailed information about hedges [line items]
Face amount	647	662
Fair Value Asset	0	(18)
Coca-Cola FEMSA \| Commodity price contracts \| Aluminum price contracts \| 2025
Disclosure of detailed information about hedges [line items]
Fair Value Asset	$ 21	$ 1

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The fair value of financial assets. [Refer: At fair value [member]; Financial assets]

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