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Balances and Transactions with Related Parties and Affiliated Companies - Summary of Transactions and Other Related Parties (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Income: |  |  |
Sales to affiliated parties | $ 8,459 | $ 6,546 | $ 5,489
Expenses: |  |  |
Other expenses with related parties | 0 | 0 | 156
Jugos del valle, S.A.P.I. de C.V. |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 3,718 | 3,234 | 2,918
Promotora Industrial Azucarera, S.A. de C.V. ("PIASA") |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 2,841 | 2,841 | 2,213
Beta San Miguel |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 917 | 724 | 938
Industria Envasadora de Quertaro, S.A. de C.V. (IEQSA) |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 843 | 577 | 234
Fountain Agua Mineral, LTDA |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 638 | 0 | 0
Leao Alimentos e Bebidas, LTDA |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 181 | 215 | 1,320
Industria Mexicana de Reciclaje, S.A. de C.V. ("IMER") |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 458 | 504 | 416
Instituto Tecnologico Y de Estudios Superiores de Monterrey AC |  |  |
Expenses: |  |  |
Donations to related party | 1 | 110 | 0
Fundacion FEMSA AC |  |  |
Expenses: |  |  |
Donations to related party | 285 | 173 | 230
Heineken Group |  |  |
Income: |  |  |
Sales to affiliated parties | 0 | 2 | 3
Expenses: |  |  |
Purchases of raw material, beer and operating expenses from Heineken | 0 | 5,036 | 11,635
FEMSA |  |  |
Expenses: |  |  |
Purchases and other expenses with related party | 9,547 | 10,129 | 7,447
The Coca-Cola Company |  |  |
Expenses: |  |  |
Purchases of concentrate from The Coca-Cola Company | 46,461 | 43,717 | 37,213
Advertisement expense paid to The Coca-Cola Company | $ 869 | $ 545 | $ 1,482

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