XML 179 R148.htm IDEA: XBRL DOCUMENT
v3.24.1.u1

Financial Instruments - Disposal (Details) - Estrella Azul - MXN ($) $ in Millions |  | 1 Months Ended |  |
--- | --- | --- | --- | ---
Sep. 30, 2020 | Sep. 30, 2020 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of detailed information about financial instruments [line items] |  |  |  |
Portion of investment sold | 100.00% | 100.00% |  |
Financial assets |  |  | $ 0 | $ 5

X
- Definition Proportion of ownership interest sold. + References No definition available. + Details
Name: | fmx_ProportionOfOwnershipInterestSold
Namespace Prefix: | fmx_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfFinancialInstrumentsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of financial assets that the entity does not separately disclose in the same statement or note. [Refer: Financial assets] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 54 -Subparagraph d -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_54_d&doctype=Standard -URIDate 2023-03-23 + Details
Name: | ifrs-full_OtherFinancialAssets
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
Period Type: | instant

X
- Details
Name: | ifrs-full_SignificantInvestmentsInSubsidiariesAxis=fmx_EstrellaAzulMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |