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Dividends - Summary of Dividends Declared and Paid (Detail) - MXN ($) $ / shares in Units, $ in Millions | Jun. 30, 2019 | Dec. 31, 2018
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Disclosure of Dividends Paid and Proposed [line items] |  |
Dividend declared and paid | $ 4,846 | $ 9,220
Series B shares [member] |  |
Disclosure of Dividends Paid and Proposed [line items] |  |
Dividend declared and paid per share | $ 0.48333 | $ 0.45980
Series D shares [member] |  |
Disclosure of Dividends Paid and Proposed [line items] |  |
Dividend declared and paid per share | $ 0.60417 | $ 0.57480
Coca Cola FEMSA [member] |  |
Disclosure of Dividends Paid and Proposed [line items] |  |
Dividend declared and paid | $ 3,718 | $ 7,038

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