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Financial Instruments - Commodity Price Contracts (Details) - MXN ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Disclosure of detailed information about hedges [line items] |  |
Face amount | $ 67,216 | $ 52,369
Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 0 |
Year two |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 6,251 |
Year three |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 4,358 |
Coca-Cola FEMSA | Commodity price contracts | Sugar Price Contracts | Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 3,108 | 2,593
Fair value Liability | (183) | (130)
Fair Value Asset | 6 | 206
Coca-Cola FEMSA | Commodity price contracts | Sugar Price Contracts | Year two |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 2,214 | 745
Fair value Liability | 118 | (72)
Fair Value Asset | 0 | 0
Coca-Cola FEMSA | Commodity price contracts | Sugar Price Contracts | Year three |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 440 |
Fair value Liability | 27 |
Fair Value Asset | 0 |
Coca-Cola FEMSA | Commodity price contracts | Aluminum price contracts | Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 828 | 647
Fair value Liability | (2) | 0
Fair Value Asset | 33 | $ 21
Coca-Cola FEMSA | Commodity price contracts | Diesel price contracts | Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 22 |
Fair value Liability | 0 |
Fair Value Asset | 0 |
Coca-Cola FEMSA | Commodity price contracts | PX MEG contracts | Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 72 |
Fair value Liability | 5 |
Fair Value Asset | 0 |
Coca-Cola FEMSA | Commodity price contracts | Options To Purchase Foreign Currency | Year one |  |
Disclosure of detailed information about hedges [line items] |  |
Face amount | 3,701 |
Fair value Liability | 24 |
Fair Value Asset | $ 248 |

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