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Company Business - Significant Investments in Subsidiaries (Details) $ in Millions, $ in Millions |  |  |  | 1 Months Ended | 3 Months Ended | 12 Months Ended
--- | --- | --- | --- | --- | --- | ---
Feb. 17, 2023 | Oct. 07, 2022 | Apr. 30, 2010 | Oct. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2023 USD ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2022 MXN ($) | Dec. 31, 2021 MXN ($)
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Equity holders of the parent |  |  |  |  |  | $ 3,886 | [1] | $ 65,689 | $ 23,909 | $ 28,495
IFS TopCo LLC |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Economic ownership percentage |  |  |  | 37.10% |  | 37.10% |  | 37.10% | 0.00% |
Series D shares |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Equity holders of the parent |  |  |  |  |  |  |  | $ 18,026 | $ 12,117 | 10,902
Net controlling interest income allocated from discontinued operations |  |  |  |  |  |  |  | 17,373 | 767 | 4,453
Series B shares |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Equity holders of the parent |  |  |  |  |  |  |  | 15,425 | 10,369 | 9,329
Net controlling interest income allocated from discontinued operations |  |  |  |  |  |  |  | $ 14,865 | $ 656 | $ 3,811
Heineken Group |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Economic ownership percentage | 13.90% |  | 20.00% |  |  | 0.90% |  | 0.90% | 14.76% |
Coca-Cola FEMSA |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 47.20% |  | 47.20% | 47.20% |
Percentage of voting share in subsidiary |  |  |  |  |  | 56.00% |  | 56.00% | 56.00% |
Percentage of shares traded as american depositary shares |  |  |  |  |  | 25.00% |  | 25.00% |  |
Coca-Cola FEMSA | The Coca-Cola company |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 27.80% |  | 27.80% |  |
Proximity Americas Division |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 100.00% |  | 100.00% | 100.00% |
Proximity Europe Division |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 100.00% |  | 100.00% | 98.15% |
Fuel Division |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 100.00% |  | 100.00% | 100.00% |
Health Division |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 100.00% |  | 100.00% | 100.00% |
Other businesses |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  |  |  |  |  | 100.00% |  | 100.00% |  |
IFS TopCo |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Economic ownership percentage |  |  |  |  |  | 37.00% |  | 37.00% |  |
Valora |  |  |  |  |  |  |  |  |  |
Disclosure Of Parent Entity Information [line items] |  |  |  |  |  |  |  |  |  |
Percentage of ownership interest of subsidiary |  | 96.87% |  |  | 98.15% | 100.00% |  | 100.00% |  |
[1] | Convenience translation to U.S. dollars ($) – See Note 2.2.3

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