XML 89 R69.htm IDEA: XBRL DOCUMENT
v3.21.1

Significant Accounting Policies - Other current assets, Property, plant and equipment, Leases (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Retail Stores [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Operating lease term | 15 years |  |
Bottom of range [member] | Office Space [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Operating lease term | 3 years |  |
Top of range [member] | Office Space [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Operating lease term | 5 years |  |
Buildings [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 25 years |  |
Buildings [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 50 years |  |
Machinery and equipment [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 10 years |  |
Machinery and equipment [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 20 years |  |
Distribution equipment [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 7 years |  |
Distribution equipment [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 15 years |  |
Refrigeration equipment [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 5 years |  |
Refrigeration equipment [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 7 years |  |
Returnable bottles [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 1 year 6 months |  |
Returnable bottles [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 3 years |  |
Leasehold improvements [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 15 years |  |
Information technology equipment [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 3 years |  |
Information technology equipment [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 5 years |  |
Other equipment [member] | Bottom of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 3 years |  |
Other equipment [member] | Top of range [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 10 years |  |
Coca-Cola FEMSA [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Amortization expense | $ 213 | $ 273 | $ 277
Coca-Cola FEMSA [member] | PET bottles [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 1 year 6 months |  |
Coca-Cola FEMSA [member] | Glass bottles [member] |  |  |
Disclosure of detailed information about property, plant and equipment [line items] |  |  |
Estimated useful lives of principal assets | 3 years |  |

X
- Definition Operating lease term. + References No definition available. + Details
Name: | fmx_OperatingLeaseTerm
Namespace Prefix: | fmx_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Definition The amount of amortisation expense. Amortisation is the systematic allocation of depreciable amounts of intangible assets over their useful lives. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_112_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_AmortisationExpense
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | debit
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_DisclosureOfPropertyPlantAndEquipmentLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The useful life, measured as period of time, used for property, plant and equipment. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_c&doctype=Standard -URIDate 2020-01-01 + Details
Name: | ifrs-full_UsefulLifeMeasuredAsPeriodOfTimePropertyPlantAndEquipment
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:durationItemType
Balance Type: | na
Period Type: | duration

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=fmx_RetailStoresMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_BottomOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfAssetsAxis=fmx_OfficeSpaceMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_RangeAxis=ifrs-full_TopOfRangeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_BuildingsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_MachineryAndEquipment1Member
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_DistributionEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_RefrigerationEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_ReturnableBottlesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=ifrs-full_LeaseholdImprovementsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_InformationTechnologyEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfPropertyPlantAndEquipmentAxis=fmx_OtherEquipmentMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

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

X
- Details
Name: | ifrs-full_BiologicalAssetsByTypeAxis=fmx_PETBottlesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_BiologicalAssetsByTypeAxis=fmx_GlassBottlesMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |