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Equity Accounted Investees - Summary of Equity Accounted Investees (Detail) R$ in Millions, $ in Millions, $ in Millions | 12 Months Ended |  |  |
--- | --- | --- | --- | ---
Dec. 31, 2020 USD ($) | Dec. 31, 2019 MXN ($) | Dec. 31, 2020 MXN ($) | Nov. 01, 2019 BRL (R$) | Dec. 31, 2018 MXN ($)
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Ownership Percentage, Associate | 14.80% | 14.80% |  |  |
Carrying Value | $ 4,940 | $ 97,470 | $ 98,270 |  | $ 94,315
Raizen Convenincias [Member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Percentage of voting equity interests acquired |  |  |  | 50.00% |
Net cash paid | R$ |  |  |  | R$ 357 |
Notes payable on acquisition | R$ |  |  |  | R$ 367 |
Promotora Industrial Azucarera, S.A. de C.V. ("PIASA") [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Sugar production |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Associate | 36.40% | 36.40% |  |  |
Carrying Value |  | $ 3,274 | 3,335 |  |
Industria Envasadora De Queretaro SA De CVIEQSA [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Canned bottling |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Associate | 26.50% | 26.50% |  |  |
Carrying Value |  | $ 194 | 192 |  |
Industria Mexicana de Reciclaje, S.A. de C.V. ("IMER") [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Recycling |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Associate | 35.00% | 35.00% |  |  |
Carrying Value |  | $ 121 | 121 |  |
Jugos del Valle, S.A.P.I. de C.V. [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Beverages |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Associate | 28.80% | 28.80% |  |  |
Carrying Value |  | $ 1,929 | 1,945 |  |
Leao Alimentos e Bebidas, LTDA [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Beverages |  |  |  |
Place of Incorporation | Brazil |  |  |  |
Ownership Percentage, Associate | 24.70% | 24.70% |  |  |
Carrying Value |  | $ 1,931 | 446 |  |
Other Investments In Coca Cola FEMSAs Companies [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Various |  |  |  |
Place of Incorporation | Various |  |  |  |
Carrying Value |  | 793 | 683 |  |
Raizen Convenincias [Member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Proximity |  |  |  |
Place of Incorporation | Brazil |  |  |  |
Ownership Percentage, Associate | 50.00% |  |  |  |
Carrying Value |  | 3,410 | 2,763 |  |
Compania Panamena de Bebidas, S.A.P.I. de C.V. [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Carrying Value |  | $ 486 |  |  |
Principal Activity | Beverages |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Joint venture |  | 50.00% |  |  |
Dispensadoras de Cafe, S.A.P.I. de C.V. [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Carrying Value |  | $ 172 | 181 |  |
Principal Activity | Services |  |  |  |
Place of Incorporation | Mexico |  |  |  |
Ownership Percentage, Joint venture | 50.00% | 50.00% |  |  |
Fountain Agua Mineral, LTDA [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Carrying Value |  | $ 851 | 720 |  |
Principal Activity | Beverages |  |  |  |
Place of Incorporation | Brazil |  |  |  |
Ownership Percentage, Joint venture | 50.00% | 50.00% |  |  |
OtherInvestments [Member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Various |  |  |  |
Place of Incorporation | Various |  |  |  |
Carrying Value |  | $ 520 | 593 |  |
Heineken Group |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Principal Activity | Beverages |  |  |  |
Place of Incorporation | The Netherlands |  |  |  |
Ownership Percentage, Associate | 14.76% | 14.76% |  |  |
Carrying Value |  | $ 83,789 | $ 87,291 |  |
Heineken NV |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Ownership Percentage, Associate | 8.63% | 8.63% |  |  |
Heineken Holding N.V. [member] |  |  |  |  |
Disclosure of Investments in Associates and Joint Ventures [line items] |  |  |  |  |
Ownership Percentage, Associate | 12.26% | 12.26% |  |  |

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- Definition The amount of investments accounted for using the equity method. The equity method is a method of accounting whereby the investment is initially recognised at cost and adjusted thereafter for the post-acquisition change in the investor's share of net assets of the investee. The investor's profit or loss includes its share of the profit or loss of the investee. The investor's other comprehensive income includes its share of the other comprehensive income of the investee. [Refer: At cost [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 8 -IssueDate 2020-01-01 -Paragraph 24 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=8&code=ifrs-tx-2020-en-r&anchor=para_24_a&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2020-01-01 -Paragraph B16 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2020-en-r&anchor=para_B16&doctype=Appendix&subtype=B -URIDate 2020-01-01 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_e&doctype=Standard -URIDate 2020-01-01 + Details
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