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Bank Loans and Notes Payable - Summary of Interest Expense (Detail) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2018 MXN ($) | Dec. 31, 2018 USD ($) | [1] | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($)
Disclosure of detailed information about borrowings [abstract] |  |  |  |  |
Interest on debts and borrowings | $ 6,760 |  | $ 6,377 |  | $ 5,694
Capitalized interest | (5) |  | (10) |  | (32)
Finance charges for employee benefits | 373 |  | 317 |  | 282
Derivative instruments | 2,649 |  | 4,339 |  | 3,519
Finance operating charges | 47 |  | 69 |  | 183
Total | $ 9,825 | $ 500 | $ 11,092 | [2] | $ 9,646
[1] | Convenience translation to U.S. dollars ($) - See Note 2.2.3
[2] | Revised to reflect the discontinued Philippines operations of Coca-Cola FEMSA - See Note 4.2.1

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