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Balances and Transactions with Related Parties and Affiliated Companies - Summary of Transaction with Related Parties (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Expenses: |  |  |
Other expenses with related parties | $ 602 | $ 742 | $ 618
Other revenue [member] |  |  |
Income: |  |  |
Income from related party transaction | 762 | 620 | 857
The Coca-Cola company [member] | Concentrate [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 32,379 | 30,758 | 38,146
The Coca-Cola company [member] | Advertising [member] |  |  |
Expenses: |  |  |
Services received to related party transaction | 2,193 | 1,392 | 2,354
Heineken [member] |  |  |
Income: |  |  |
Income from related party transaction | 3,265 | 3,570 | 3,153
Heineken [member] | Beer [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 27,999 | 24,942 | 16,436
Grupo Industrial Saltillo, S.A. de C.V. [member] | Logistic services [member] |  |  |
Income: |  |  |
Income from related party transaction | 255 | 457 | 427
Jugos del Valle, S.A.P.I. de C.V. [member] | Logistic services [member] |  |  |
Income: |  |  |
Income from related party transaction | 369 | 587 | 555
Jugos del Valle, S.A.P.I. de C.V. [member] | Juices [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 4,537 | 3,905 | 3,310
Caffenio [member] | Coffee [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction |  | 2,397 | 2,064
Grupo Industrial Bimbo, S.A.B. de C. V. [member] | Baked goods and snacks [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 5,763 | 4,802 | 4,184
Promotora Industrial Azucarera, S.A. de C.V. [member] | Sugar [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 2,604 | 1,885 | 1,765
BBVA Bancomer, S.A. de C.V. [member] |  |  |
Expenses: |  |  |
Interest expense and fee paid to related party transaction | 220 | 40 | 26
Beta San Miguel [member] | Sugar [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 651 | 1,827 | 1,349
Promotora Mexicana de Embotelladores, S.A. de C.V. [member] | Sugar, cans and aluminum lids [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 739 | 839 | 759
Industria Envasadora De Queretaro SA De CVIEQSA [member] | Canned products [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 596 | 804 | 798
Leao Alimentos e Bebidas, LTDA [member] | Inventories [member] |  |  |
Expenses: |  |  |
Purchase of goods from related party transaction | 2,654 | 4,010 | 3,448
Grupo Televisa, S.A.B. de C.V. [member] | Advertising [member] |  |  |
Expenses: |  |  |
Services received to related party transaction | 113 | 107 | 193
Grupo Nacional Provincial, S.A.B. [Member] |  |  |
Expenses: |  |  |
Insurance premiums for policies with Grupo Nacional Provincial, S.A.B. (3) | 12 | 32 | 63
Fundacion FEMSA, A.C. [member] |  |  |
Expenses: |  |  |
Donations to related party transactions | 113 | 23 | 62
Difusion y Fomento Cultural, A.C. [member] |  |  |
Expenses: |  |  |
Donations to related party transactions | 63 | 44 | $ 49
Donations to ITESM [member] |  |  |
Expenses: |  |  |
Donations to related party transactions | $ 192 | $ 108 |

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