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v3.20.1

Equity - Additional Information (Detail) - MXN ($) $ in Millions |  |  |  |  |  |  |  |  |  |  |  |  | 12 Months Ended |  |  |  |  |  |
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Nov. 05, 2019 | Nov. 01, 2019 | May 07, 2019 | May 03, 2019 | Nov. 06, 2018 | Nov. 01, 2018 | May 04, 2018 | May 03, 2018 | Nov. 03, 2017 | Nov. 01, 2017 | May 05, 2017 | May 03, 2017 | Dec. 31, 2019 | Dec. 31, 2018 | Mar. 22, 2019 | Mar. 14, 2019 | Mar. 16, 2018 | Mar. 09, 2018 | Dec. 31, 2017 | Mar. 16, 2017
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital stock issued |  |  |  |  |  |  |  |  |  |  |  |  | 3,578,226,270 |  |  |  |  |  |  |
Common stock outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 17,891,131,350 | 17,891,131,350 |  |  |  |  |  |
Fixed capital stock amounts |  |  |  |  |  |  |  |  |  |  |  |  | $ 300 | $ 300 |  |  |  |  |  |
Description of variable capital amount |  |  |  |  |  |  |  |  |  |  |  |  | the variable capital may not exceed 10 times the minimum fixed capital stock amount. | the variable capital may not exceed 10 times the minimum fixed capital stock amount. |  |  |  |  |  |
Reserve distributed as stock dividend |  |  |  |  |  |  |  |  |  |  |  |  | $ 596 | $ 596 |  |  |  |  |  |
Total CUFIN balance amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 225,589 |  |  |  |  |  |  |
Description for dividend payable |  |  |  |  |  |  |  |  |  |  |  |  | Dividends distributed to its stockholders who are individuals and foreign residents must withhold 10% for LISR purposes, which will be paid in Mexico. |  |  |  |  |  |  |
Repurchased shares |  |  |  |  |  |  |  |  |  |  |  |  | $ 0 | $ 0 |  |  |  |  | $ 0 |
BD units [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital stock issued |  |  |  |  |  |  |  |  |  |  |  |  | 2,161,177,770 |  |  |  |  |  |  |
Common stock outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 10,805,888,850 |  |  |  |  |  |  |
B units [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Capital stock issued |  |  |  |  |  |  |  |  |  |  |  |  | 1,417,048,500 |  |  |  |  |  |  |
Common stock outstanding |  |  |  |  |  |  |  |  |  |  |  |  | 7,085,242,500 |  |  |  |  |  |  |
Series B shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting rights for common stock holder |  |  |  |  |  |  |  |  |  |  |  |  | unlimited |  |  |  |  |  |  |
Minimum percentage for voting |  |  |  |  |  |  |  |  |  |  |  |  | 51.00% |  |  |  |  |  |  |
Series L shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting rights for common stock holder |  |  |  |  |  |  |  |  |  |  |  |  | limited |  |  |  |  |  |  |
Maximum percentage for voting right |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |
Series D shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Voting rights for common stock holder |  |  |  |  |  |  |  |  |  |  |  |  | limited |  |  |  |  |  |  |
Maximum percentage for voting right |  |  |  |  |  |  |  |  |  |  |  |  | 49.00% |  |  |  |  |  |  |
Sub series D-L shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Maximum percentage for voting right |  |  |  |  |  |  |  |  |  |  |  |  | 25.00% |  |  |  |  |  |  |
Non cumulative premium [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend payable |  |  |  |  |  |  |  |  |  |  |  |  | 125.00% |  |  |  |  |  |  |
Top of range [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Debt to earnings before interest, taxes, depreciation and amortization ratio |  |  |  |  |  |  |  |  |  |  |  |  | 1.50% |  |  |  |  |  |  |
Ordinary shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 9,692 |  | $ 9,220 |  |  | $ 8,636
Percentage of dividend paid |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |
Maximum reserve for share purchase | $ 7,000 |  |  |  | $ 7,000 |  |  |  | $ 7,000 |  |  |  |  |  |  |  |  |  |  |
Ordinary shares [member] | Non-controlling interest [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  | $ 3,925 |  |  |  | $ 3,713 |  |  |  | $ 3,622 |  |  |  |  |  |  |  |  |  |
Ordinary shares [member] | Coca Cola FEMSA [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 7,437 |  | $ 7,038 |  | $ 6,991
Percentage of dividend paid | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  |

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