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Intangible Assets - Carrying Amounts of Goodwill and Distribution Rights (Details) $ in Millions, $ in Millions | Dec. 31, 2021 USD ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($)
--- | --- | --- | --- | ---
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated | $ 7,709 | $ 158,138 | $ 155,501 | $ 146,562
Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 98,303 | 100,082 |
Mexico | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 56,352 | 56,352 |
Guatemala | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 1,735 | 1,755 |
Nicaragua | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 438 | 433 |
Costa Rica | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 1,407 | 1,425 |
Panama | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 1,238 | 1,200 |
Colombia | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 3,798 | 4,414 |
Brazil | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 30,608 | 31,741 |
Argentina | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | 395 | 312 |
Uruguay | Cash Generating Units | Coca-Cola FEMSA |  |  |  |
Disclosure of information for cash-generating units [line items] |  |  |  |
Goodwill and distribution rights allocated |  | $ 2,332 | $ 2,450 |

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