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Income Taxes - Additional Information (Detail) $ in Millions, $ in Billions |  |  |  |  |  |  | 12 Months Ended |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2018 PHP (₱) l | Oct. 19, 2017 | Jan. 01, 2017 | Feb. 01, 2016 | Jan. 01, 2016 | Apr. 01, 2015 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($) | Dec. 31, 2015 MXN ($) | Dec. 31, 2017 USD ($) | [1] | Jan. 01, 2015 MXN ($) | Jan. 01, 2015 USD ($) | Jan. 01, 2015 COP ($)
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  | 8.00% |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% | 30.00% |  |  |  |
Net equity |  |  |  |  |  |  |  |  |  |  |  | $ 336,912,000,000 | $ 286,170,000,000 | $ 241,856,000,000 | $ 17,155.0 | $ 230,122,000,000 |  |
Special tax rate for financial transaction |  |  |  | 0.75% |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax liability |  |  |  |  |  |  |  |  |  |  |  | $ 6,133,000,000 | 11,037,000,000 |  | $ 312.0 |  |  |
NOLs usage limit |  |  |  |  |  |  |  |  |  |  |  | 30.00% |  |  |  |  |  |
Withholding taxes associated with payment of dividends |  |  |  |  |  |  |  |  |  |  |  | $ 0 | 0 | 0 |  |  |  |
Temporary differences associated with investments |  |  |  |  |  |  |  |  |  |  |  | $ 41,915,000,000 | $ 41,204,000,000 | $ 44,082,000,000 |  |  |  |
Coca Cola FEMSA [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of federal production and federal sales tax |  |  |  |  | 16.20% |  |  |  |  |  |  |  |  |  |  |  |  |
Bottom of range [member] | Coca Cola FEMSA [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of average federal Production and federal sales tax for the next year |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Top of range [member] | Coca Cola FEMSA [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of average federal Production and federal sales tax for the next year |  |  |  |  | 17.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Colombia [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |
Percentage of reform income tax rate |  |  | 33.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform extra income tax rate |  |  |  |  |  |  |  |  |  |  |  | 6.00% |  |  |  |  |  |
Percentage of special increase in income tax rate |  |  |  |  |  |  |  |  |  |  |  | 20.00% | 15.00% |  |  |  |  |
Percentage of dividend received from Columbian residents withholding |  |  |  |  |  |  |  |  |  |  |  | 35.00% |  |  |  |  |  |
Percentage of dividend received from colombian non residents withholding |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |  |  |
Percentage of increase in income tax rate |  |  |  |  |  |  |  |  |  |  |  | 3.50% | 3.00% |  |  |  |  |
Percentage of Increase in value-added tax rate |  |  |  |  |  |  |  |  |  |  |  | 19.00% |  |  |  |  |  |
Value-added tax |  |  |  |  |  |  |  |  |  |  |  |  | 16.00% |  |  |  |  |
Net equity |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2.1 | $ 5.0
Percentage of tax rate on equity |  |  |  |  |  |  |  |  |  |  |  | 0.40% | 1.00% | 1.15% |  |  |  |
Percentage of decrease in income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  |
Percentage of temporary contribution |  |  |  |  |  |  |  |  |  |  |  | 8.00% | 6.00% | 5.00% |  |  |  |
Percentage of income tax deduction |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |
Colombia [member] | Less than 1 year [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate |  |  | 34.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Colombia [member] | Later than one year [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate |  |  | 33.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Colombia [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% |  |  |  |
Brazil [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of social contributions on gross revenues on financial income |  |  |  |  |  | 4.65% |  |  |  |  |  |  |  |  |  |  |  |
Mato Grosso do Sul [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added tax |  |  |  |  |  |  |  |  |  |  |  |  | 17.00% |  |  |  |  |
Mato Grosso do Sul [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added tax |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |  |
Rio Grande do Sul [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added tax |  |  |  |  |  |  |  |  |  |  |  |  | 18.00% |  |  |  |  |
Rio Grande do Sul [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added tax |  |  |  |  |  |  |  |  |  |  |  |  | 20.00% |  |  |  |  |
Minas Gerais [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Remaining percentage of value added tax |  |  |  |  |  |  |  |  |  |  |  |  | 18.00% |  |  |  |  |
Additional Contribution to poverty eradication |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Rio de Janeiro [member] | Bottom of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of contribution to poverty eradication |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |
Rio de Janeiro [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of contribution to poverty eradication |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Parana [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of contribution to poverty eradication |  |  |  |  |  |  |  |  |  |  |  |  | 16.00% |  |  |  |  |
Percentage of contribution to poverty eradication charged on sales to non-taxpayers |  |  |  |  |  |  |  |  |  |  |  |  | 2.00% |  |  |  |  |
Venezuela [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Deferred tax liability |  |  |  |  |  |  |  |  |  |  |  | $ 1,107,000,000 |  |  |  |  |  |
Argentina [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  |  | 35.00% |  |  |  |  |  |
Argentina [member] | Sales taxes in the province of Buenos Aires [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  |  | 1.75% |  |  |  |  |  |
Argentina [member] | Sales Tax in City of Buenos Aires [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  |  | 1.00% |  |  |  |  |  |
Philippines [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time period for keeping books and accounting records |  |  |  |  |  |  |  |  |  |  |  | 10 years |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Colombia [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform extra income tax rate |  |  |  |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Colombia [member] | Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Argentina [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  | 25.00% | 30.00% | 30.00% |  |  |  |  |  |  |
New tax on dividends paid to non-resident stockholders and resident individuals |  |  |  |  |  |  |  |  | 13.00% | 7.00% | 7.00% |  |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Argentina [member] | Sales taxes in the province of Buenos Aires [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Argentina [member] | Sales Tax in City of Buenos Aires [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Income tax rate |  |  |  |  |  |  | 0.00% | 0.50% | 1.00% | 1.50% | 2.00% |  |  |  |  |  |  |
Changes in tax rates or tax laws enacted or announced [member] | Philippines [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Change in tax rate | 65.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase on net capital gains | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maxium amount of trading to get the capital gain tax reduction | ₱ | ₱ 100,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of net capital gain tax rate when limit exceeds | 10.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum amount of trading value that impose ten percentage tax | ₱ | ₱ 100,000,000,000 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
General tax rate on outside trading | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax rate on per liter for sweetened beverages using caloric and non-caloric sweeteners | l | 6.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax rate on per liter for sweetened beverages using HFCS | l | 12.00 |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Time period for keeping books and accounting records | 3 years |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Events after reporting period [member] | Colombia [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of income taxes [Line Items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of temporary contribution |  |  |  |  |  |  |  |  |  |  | 9.00% |  |  |  |  |  |  |
[1] | Convenience translation to U.S. dollars ($) - See Note 2.2.3

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