XML 209 R162.htm IDEA: XBRL DOCUMENT
v3.25.1

Non-Controlling Interest in Consolidated Subsidiaries - Options (Details) - Open Market | 12 Months Ended
--- | ---
Dec. 31, 2024
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items] |
Ownership under option, as a percent | 20.00%
Percentage of ownership interest of subsidiary | 20.00%

X
- Definition Disclosure of non controlling interest in consolidated subsidiaries line items. + References No definition available. + Details
Name: | fmx_DisclosureOfNonControllingInterestInConsolidatedSubsidiariesLineItems
Namespace Prefix: | fmx_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The percentage ownership under option to be acquired from past acquisitions. + References No definition available. + Details
Name: | fmx_NonControllingOwnershipInterestUnderOption
Namespace Prefix: | fmx_
Data Type: | dtr-types1:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Total for all subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_17_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2024-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=27&code=ifrs-tx-2024-en-r&anchor=para_16_b_iii&doctype=Standard -URIDate 2024-03-27 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2024-01-01 -Paragraph 19B -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=12&code=ifrs-tx-2024-en-r&anchor=para_19B_c&doctype=Standard -URIDate 2024-03-27 + Details
Name: | ifrs-full_ProportionOfOwnershipInterestInSubsidiary
Namespace Prefix: | ifrs-full_
Data Type: | dtr-2022:percentItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_BusinessCombinationsAxis=fmx_OpenMarketMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |