XML 172 R152.htm IDEA: XBRL DOCUMENT
v3.21.1

Equity - Summary of Capital Stock (Detail) - MXN ($) $ in Millions | Nov. 05, 2020 | Nov. 03, 2020 | Aug. 20, 2020 | May 05, 2020 | Nov. 05, 2019 | Nov. 01, 2019 | May 07, 2019 | May 03, 2019 | Nov. 06, 2018 | Nov. 01, 2018 | May 04, 2018 | May 03, 2018 | Dec. 31, 2020 | Mar. 20, 2020 | Mar. 17, 2020 | Dec. 31, 2019 | Mar. 22, 2019 | Mar. 14, 2019 | Mar. 16, 2018 | Mar. 09, 2018
--- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | ---
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units |  |  |  |  |  |  |  |  |  |  |  |  | 3,578,226,270 |  |  |  |  |  |  |
Series "B" |  |  |  |  |  |  |  |  |  |  |  |  | 9,246,420,270 |  |  |  |  |  |  |
Series "D" |  |  |  |  |  |  |  |  |  |  |  |  | 8,644,711,080 |  |  |  |  |  |  |
Subseries "D-B" |  |  |  |  |  |  |  |  |  |  |  |  | 4,322,355,540 |  |  |  |  |  |  |
Subseries "D-L" |  |  |  |  |  |  |  |  |  |  |  |  | 4,322,355,540 |  |  |  |  |  |  |
Total shares |  |  |  |  |  |  |  |  |  |  |  |  | 17,891,131,350 |  |  | 17,891,131,350 |  |  |  |
Total CUFIN balance amount |  |  |  |  |  |  |  |  |  |  |  |  | $ 237,627 |  |  |  |  |  |  |
Statutory reserve |  |  |  |  |  |  |  |  |  |  |  |  | $ 596 |  |  | $ 596 |  |  |  |
B units [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units |  |  |  |  |  |  |  |  |  |  |  |  | 1,417,048,500 |  |  |  |  |  |  |
Series "B" |  |  |  |  |  |  |  |  |  |  |  |  | 7,085,242,500 |  |  |  |  |  |  |
Total shares |  |  |  |  |  |  |  |  |  |  |  |  | 7,085,242,500 |  |  |  |  |  |  |
BD units [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Number of units |  |  |  |  |  |  |  |  |  |  |  |  | 2,161,177,770 |  |  |  |  |  |  |
Series "B" |  |  |  |  |  |  |  |  |  |  |  |  | 2,161,177,770 |  |  |  |  |  |  |
Series "D" |  |  |  |  |  |  |  |  |  |  |  |  | 8,644,711,080 |  |  |  |  |  |  |
Subseries "D-B" |  |  |  |  |  |  |  |  |  |  |  |  | 4,322,355,540 |  |  |  |  |  |  |
Subseries "D-L" |  |  |  |  |  |  |  |  |  |  |  |  | 4,322,355,540 |  |  |  |  |  |  |
Total shares |  |  |  |  |  |  |  |  |  |  |  |  | 10,805,888,850 |  |  |  |  |  |  |
Ordinary shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,360 |  |  | $ 9,692 |  | $ 9,220 |
Percentage of dividend paid |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |
Maximum reserve for share purchase | $ 17,000 |  |  |  | $ 7,000 |  |  |  | $ 7,000 |  |  |  |  |  |  |  |  |  |  |
Ordinary shares [member] | Non-controlling interest [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  | $ 5,389 |  |  |  | $ 3,925 |  |  |  | $ 3,713 |  |  |  |  |  |  |  |  |  |
Coca-Cola FEMSA [member] | Ordinary shares [member] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |  |
Dividend approved to be paid |  |  |  |  |  |  |  |  |  |  |  |  |  |  | $ 10,210 |  |  | $ 7,437 |  | $ 7,038
Percentage of dividend paid | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  | 50.00% | 50.00% |  |  |  |  |  |  |  |  |  |

X
- Definition Maximum reserve for share purchase. + References No definition available. + Details
Name: | fmx_MaximumReserveForSharePurchase
Namespace Prefix: | fmx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | duration

X
- Definition Net taxable income, denominated "Cuenta de utilidad Fiscal Neta" (CUFIN") balance. + References No definition available. + Details
Name: | fmx_NetTaxableIncomeDenominatedBalance
Namespace Prefix: | fmx_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition Number of series B shares issued. + References No definition available. + Details
Name: | fmx_NumberOfSeriesBSharesIssued
Namespace Prefix: | fmx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of series D-B shares issued. + References No definition available. + Details
Name: | fmx_NumberOfSeriesDBSharesIssued
Namespace Prefix: | fmx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of series D-L shares issued. + References No definition available. + Details
Name: | fmx_NumberOfSeriesDLSharesIssued
Namespace Prefix: | fmx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Number of series D shares issued. + References No definition available. + Details
Name: | fmx_NumberOfSeriesDSharesIssued
Namespace Prefix: | fmx_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition Percentage of dividend paid. + References No definition available. + Details
Name: | fmx_PercentageOfDividendPaid
Namespace Prefix: | fmx_
Data Type: | num: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 domain members defined in one or many axes of the table. + References No definition available. + Details
Name: | ifrs-full_DisclosureOfClassesOfShareCapitalLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of dividends that the company has declared but not yet paid. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_DividendPayables
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Definition The number of shares issued by the entity. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 106 -Subparagraph d -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_106_d&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesIssued
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition The number of shares that have been authorised and issued, reduced by treasury shares held. [Refer: Treasury shares] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 79 -Subparagraph a -Clause iv -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_79_a_iv&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_NumberOfSharesOutstanding
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:sharesItemType
Balance Type: | na
Period Type: | instant

X
- Definition A component of equity representing reserves created based on legal requirements. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 55 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_55&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_StatutoryReserve
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | credit
Period Type: | instant

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=fmx_BUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=fmx_BDUnitsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfShareCapitalAxis=ifrs-full_OrdinarySharesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ComponentsOfEquityAxis=ifrs-full_NoncontrollingInterestsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_CategoriesOfRelatedPartiesAxis=fmx_CocaColaFEMSAMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |