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Equity - Summary of Dividends Declared and Paid (Detail) - MXN ($) $ / shares in Units, $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017
--- | --- | --- | ---
Disclosure of classes of share capital [line items] |  |  |
Dividend declared and paid | $ 9,692 | $ 9,220 | $ 8,636
Series B shares [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividend declared and paid per share | $ 0.48333 | $ 0.45980 |
Series D shares [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividend declared and paid per share | $ 0.60417 | $ 0.57480 |
Coca Cola FEMSA [member] |  |  |
Disclosure of classes of share capital [line items] |  |  |
Dividend declared and paid | $ 7,437 | $ 7,038 | $ 6,991

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