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v3.21.1

Other Liabilities, Provisions and Commitments - Additional Information (Detail) $ in Millions, $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2018 MXN ($) | Dec. 31, 2020 USD ($) | Dec. 31, 2020 MXN ($)
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies payable to former shareholders |  |  |  | $ 899 |
Aggregate amount claimed against company | $ 80,795 |  |  |  |
Commitments for the Purchase of property, plant and equipment |  |  |  |  | $ 432
Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  |  | 48,403
Litigation amount | $ 7,342 | $ 10,471 | $ 7,739 |  |
Value Added Tax | Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  |  | 8,899
Tax Credits | Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  |  | 29,280
Federal Taxes | Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  |  | $ 4,878
Liabilities of amortization of goodwill of business acquisition | Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  | 2,677 |
Operations Of Third Party | Brazil |  |  |  |  |
Disclosure of contingent liabilities [line items] |  |  |  |  |
Tax contingencies amount |  |  |  | $ 2,667 |

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