XML 75 R54.htm IDEA: XBRL DOCUMENT
v3.22.1

Bonus Programs (Tables) | 12 Months Ended
--- | ---
Dec. 31, 2021
IFRS Text Block [Abstract] |
Summary of Number of Shares Held by the Trust | As of December 31, 2021 and 2020, the changes in the number of shares held by the trust associated with the Company’s share-based payment plans are as follows:
​ | ​ | ​ | ​ | ​ | ​ | ​ | ​ | ​
​ | ​ | Number of Shares
​ | ​ | FEMSA UBD | ​ | KOF UBL
​ | ​ | 2021 | ​ | 2020 | ​ | 2021 | ​ | 2020
Beginning balance |  | 3,414,900 |  | 2,249,665 |  | 1,360,158 |  | 752,847
Shares acquired by the administrative trust to employees |  | 2,221,136 |  | 2,445,983 |  | 921,125 |  | 985,535
Shares released from administrative trust to employees upon vesting |  | (1,963,450) |  | (1,280,748) |  | (580,209) |  | (378,224)
Ending balance |  | 3,672,586 |  | 3,414,900 |  | 1,701,074 |  | 1,360,158

X
- Definition n/a + References No definition available. + Details
Name: | fmx_IfrsTextBlockAbstract
Namespace Prefix: | fmx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The disclosure of the general terms and conditions of share-based payment arrangements. [Refer: Share-based payment arrangements [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 2 -IssueDate 2021-01-01 -Paragraph 45 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IFRS&num=2&code=ifrs-tx-2021-en-r&anchor=para_45&doctype=Standard -URIDate 2021-03-24 + Details
Name: | ifrs-full_DisclosureOfTermsAndConditionsOfSharebasedPaymentArrangementExplanatory
Namespace Prefix: | ifrs-full_
Data Type: | nonnum:textBlockItemType
Balance Type: | na
Period Type: | duration