XML 87 R72.htm IDEA: XBRL DOCUMENT
v3.8.0.1

Mergers, Acquisitions and Disposals - Summary of Unaudited Pro Forma Financial Information (Detail) - MXN ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
Disclosure of detailed information about business combination [line items] |  |  |
Total revenues | $ 462,112 | $ 410,831 | $ 340,600
Income before income taxes and share of the profit of associates and joint ventures accounting for using the equity method | 39,917 | 29,950 | 27,485
Net income | $ 37,311 | $ 28,110 | $ 25,004
Series B 1 [member] |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Basic net controlling interest income per share | $ 2.12 | $ 1.08 | $ 0.97
Series D [member] |  |  |
Disclosure of detailed information about business combination [line items] |  |  |
Basic net controlling interest income per share | $ 2.65 | $ 1.35 | $ 1.21

X
- Definition Business combination proforma income before income taxes and share of the profit under equity method. + References No definition available. + Details
Name: | fmx_BusinessCombinationProformaIncomeBeforeIncomeTaxesAndShareOfTheProfitUnderEquityMethod
Namespace Prefix: | fmx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The amount of profit (loss) attributable to ordinary equity holders of the parent entity (the numerator) divided by the weighted average number of ordinary shares outstanding during the period (the denominator). + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 33 -IssueDate 2017-01-01 -Paragraph 66 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=33&date=2017-03-01&anchor=para_66&doctype=Standard -URIDate 2017-03-09 + Details
Name: | ifrs-full_BasicEarningsLossPerShare
Namespace Prefix: | ifrs-full_
Data Type: | num:perShareItemType
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 domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfBusinessCombinationsLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The profit (loss) of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Profit (loss)] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph q -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_q_ii&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_ProfitLossOfCombinedEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition The revenue of the combined entity as though the acquisition date for all business combinations that occurred during the year had been as of the beginning of the annual reporting period. [Refer: Business combinations [member]; Revenue] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 3 -IssueDate 2017-01-01 -Paragraph B64 -Subparagraph q -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=3&date=2017-03-01&anchor=para_B64_q_ii&doctype=Appendix&seq=2 -URIDate 2017-03-09 + Details
Name: | ifrs-full_RevenueOfCombinedEntity
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfOrdinarySharesAxis=fmx_SeriesB1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfOrdinarySharesAxis=fmx_SeriesDMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |