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Income Taxes - Additional Information (Detail) $ in Millions |  |  |  |  |  |  | 1 Months Ended | 2 Months Ended | 3 Months Ended | 4 Months Ended | 5 Months Ended | 6 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Jan. 01, 2020 | Nov. 18, 2019 | Jun. 30, 2019 | Mar. 01, 2019 | Dec. 31, 2018 MXN ($) | Sep. 01, 2018 | Nov. 17, 2019 | Jan. 31, 2021 | Dec. 31, 2019 MXN ($) | Sep. 30, 2019 | Dec. 31, 2018 MXN ($) | May 31, 2020 | Nov. 30, 2020 | Jun. 30, 2019 | Dec. 31, 2022 | Dec. 31, 2021 | Dec. 31, 2020 MXN ($) $ / l | Dec. 31, 2020 USD ($) $ / l | Dec. 31, 2019 MXN ($) | Dec. 31, 2018 MXN ($)
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Unrecognized deferred tax liabilities |  |  |  |  | $ 9,237,000,000 |  |  |  | $ 13,187,000,000 |  | $ 9,237,000,000 |  |  |  |  |  | $ 5,212,000,000 |  | $ 13,187,000,000 | $ 9,237,000,000
Deferred tax expense arising from write-down or reversal of write-down of deferred tax asset |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 2,349,000,000 |  |  |
NOLs usage limit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |
Applicable tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% | 30.00% | 30.00%
Non deductible interests limitation period percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |
Brazil |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Recoverable taxes |  |  |  |  |  |  |  |  | $ 4,223 |  |  |  |  |  |  |  | $ 2,523 |  | $ 4,223 |
Average federal production and federal sales tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.90% | 15.90% |  |
Excise tax rate |  |  |  |  |  | 20.00% |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |
Excise tax rate increased |  |  |  |  |  |  |  |  |  |  |  |  | 8.00% |  |  |  | 8.00% | 8.00% |  |
Excise tax rate decreased |  |  |  |  |  |  |  | 4.00% |  |  |  |  |  |  |  |  |  |  |  |
Brazil | Changes in Tax Rates or Tax Laws Enacted or Announced |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax rate |  |  | 12.00% |  |  |  |  |  | 10.00% | 8.00% |  | 4.00% |  | 4.00% |  |  |  |  |  |
Argentina |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 35.00% | 35.00%
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% | 1.50% |  | 1.75%
Argentina | Bottom of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00%
Argentina | Top of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 2.00%
Argentina | Two Thousand Eighteen and Nineteen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00%
Argentina | Two Thousand Nineteen Onwards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% | 25.00% |  |
Percentage of dividend received nonresidents withholding |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 13.00% | 13.00% |  |
Argentina | Two Thousand Twenty Onwards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend withholding tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.00% | 7.00% | 7.00% | 7.00%
Corporate income tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |
Argentina | Two Thousand and Eighteen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50%
Argentina | Two Thousand and Nineteen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |
Argentina | Two Thousand and Twenty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.00% | 1.00% |  |
Argentina | Two Thousand and Twenty One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% |  |  |  |
Argentina | Two Thousand and Twenty Two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Sales taxes percentage |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00%
Mexico |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% | 30.00% | 30.00%
Mexico | Two Thousand Twenty Onwards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% | 25.00% |  |
Net interest deduction adjusted taxable income rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 30.00% | 30.00% |  |
Exception for deductible interest |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 20,000,000 | $ 1 |  |
Non-deductible interests limitation period |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10 years | 10 years |  |
Mexico | Two Thousand Twenty Onwards | Bottom of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax per liter on the production | $ / l |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.17 | 1.17 |  |
Mexico | Two Thousand Twenty Onwards | Top of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax per liter on the production | $ / l |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.2616 | 1.2616 |  |
Colombia |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 33.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum assumed income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% | 1.50% |  |
Dividend tax on resident individuals |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% | 15.00% |  |
Dividends tax rate applicable to foreign nonresidents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.50% | 7.50% |  |
Percent of municipality sales tax as a credit |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |
Colombia | Bottom of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend tax on distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 5.00% | 5.00% |  |
Colombia | Top of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend tax on distributions |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 7.50% | 7.50% |  |
Colombia | Two Thousand Twenty Onwards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum assumed income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.50% | 0.50% |  |
Dividend tax on resident individuals |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% |  |
Dividends tax rate applicable to foreign nonresidents |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% |  |
Colombia | Two Thousand and Nineteen |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in income tax rate |  |  |  |  | 3.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipality sales tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 50.00% |
Colombia | Two Thousand and Twenty |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 32.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in income tax rate |  |  |  |  | 1.50% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Municipality sales tax |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 100.00% | 100.00% |  |
Colombia | Two Thousand and Twenty One |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 31.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of increase in income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% |  |  |  |  |
Colombia | Two Thousand and Twenty Two |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 30.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Colombia | In Two Thousand Twenty One Onwards |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum assumed income tax rate |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 0.00% | 0.00% |  |
Costa Rica |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 15.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Value-added tax |  |  |  |  | 13.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of interest expenses |  |  |  |  | 20.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Costa Rica | Bottom of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 25.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Costa Rica | Top of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Applicable tax rate |  |  |  |  | 2000.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Panama |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Excise tax rate | 5.00% | 7.00% |  |  |  |  | 5.00% |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of consumption tax on syrups |  |  |  |  |  |  | 10.00% |  |  |  |  |  |  |  |  |  | 10.00% | 10.00% |  |
Nicaragua | Bottom of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate |  |  |  | 9.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum alternative income tax increased percentage |  |  |  | 1.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nicaragua | Weighted Average |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate |  |  |  | 11.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nicaragua | Top of Range |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate |  |  |  | 13.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Minimum alternative income tax increased percentage |  |  |  | 3.00% |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Nicaragua | Two thousand twenty one |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Major Components Of Tax Expense Income [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Percentage of reform income tax rate starting |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | 15.00% | 15.00% |  |

X
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- Definition The amount of deferred tax expense arising from the write-down, or reversal of a previous write-down, of a deferred tax asset. [Refer: Deferred tax assets] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 80 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_80_g&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition The aggregate amount of temporary differences associated with investments in subsidiaries, branches and associates and interests in joint arrangements, for which deferred tax liabilities have not been recognised as a result of satisfying both of the following conditions: (a) the parent, investor, joint venturer or joint operator is able to control the timing of the reversal of the temporary difference; and (b) it is probable that the temporary difference will not reverse in the foreseeable future. [Refer: Associates [member]; Subsidiaries [member]; Temporary differences [member]; Investments in subsidiaries] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2019-01-01 -Paragraph 81 -Subparagraph f -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=12&code=ifrs-tx-2019-en-r&anchor=para_81_f&doctype=Standard -URIDate 2019-03-27 + Details
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- Definition Average federal production and federal sales tax + References No definition available. + Details
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- Definition Corporate income tax + References No definition available. + Details
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- Definition Dividend tax on distributions + References No definition available. + Details
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- Definition Dividend tax on resident individuals + References No definition available. + Details
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- Definition Dividends tax rate applicable to foreign nonresidents + References No definition available. + Details
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- Definition Major components of tax expense income [line items] + References No definition available. + Details
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- Definition Minimum assumed income tax rate + References No definition available. + Details
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- Definition Net interest deduction adjusted taxable income rate + References No definition available. + Details
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- Definition Percent of municipality sales tax as a credit + References No definition available. + Details
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