XML 154 R138.htm IDEA: XBRL DOCUMENT
v3.19.1

Bank Loans and Notes Payable - Summary of Financial Instruments by Type of Interest Rate (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017
Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | 7.4% fixed to 7.2% variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 11,403 | $ 11,403
Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.80% | 8.90%
Interest receive rate | 4.00% | 4.00%
Notional amount | $ 19,768 | $ 19,818
Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.10% | 9.10%
Interest receive rate | 3.90% | 3.90%
Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 4.70% | 6.00%
Interest receive rate | 0.40% | 2.00%
Notional amount | $ 4,652 | $ 19,617
Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 8.30% |
Interest receive rate | 2.90% |
Notional amount | $ 4,559 |
Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Variable to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate |  | 6.60%
Interest receive rate |  | 2.50%
Notional amount |  | $ 19,617
Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Variable to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.00% |
Interest receive rate | 3.60% |
Notional amount | $ 13,483 |
Cross-currency swaps [member] | Chilean peso [member] | Variable to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 6.90% | 6.90%
Interest receive rate | 4.60% | 3.90%
Notional amount | $ 364 | $ 620
Interest rate swap [member] | U.S. dollars to Mexican pesos [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 11,403 |
Interest rate swap [member] | Mexican peso [member] | 6.0% variable to 5.9% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 6.30% | 5.80%
Interest receive rate | 4.00% | 4.50%
Notional amount | $ 2,847 | $ 3,515
Interest rate swap [member] | Mexican peso [member] | 7.4% variable to 7.2% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 7.20% | 7.20%
Interest receive rate | 9.80% | 8.90%
Less than 1 year [member] | Cross-currency swaps [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 4,738 | $ 24,760
Less than 1 year [member] | Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 4.70% |
Interest receive rate | 0.40% |
Notional amount | $ 4,652 |
Less than 1 year [member] | Interest rate swap [member] | Mexican peso [member] | 6.0% variable to 5.9% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 6.50% |
Interest receive rate | 3.80% |
Notional amount | $ 19 |
1-2 years [member] | Cross-currency swaps [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | 18,126 | 6,263
1-2 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 9,841 |
1-2 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.00% |
Interest receive rate | 3.90% |
1-2 years [member] | Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 8.30% |
Interest receive rate | 2.90% |
Notional amount | $ 4,559 |
1-2 years [member] | Cross-currency swaps [member] | Chilean peso [member] | Variable to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 6.90% |
Interest receive rate | 4.60% |
Notional amount | $ 364 |
2-3 years [member] | Cross-currency swaps [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 4,774 | 18,428
2-3 years [member] | Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Variable to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 7.90% |
Interest receive rate | 2.90% |
Notional amount | $ 4,035 |
2-3 years [member] | Interest rate swap [member] | Mexican peso [member] | 6.0% variable to 5.9% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 7.60% |
Interest receive rate | 3.80% |
Notional amount | $ 513 |
3-4 years [member] | Cross-currency swaps [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount |  | $ 4,853
3-4 years [member] | Interest rate swap [member] | Mexican peso [member] | 6.0% variable to 5.9% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 6.60% |
Interest receive rate | 4.50% |
Notional amount | $ 617 |
4-5 years [member] | Cross-currency swaps [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | 396 |
4-5 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | 7.4% fixed to 7.2% variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 11,403 |
4-5 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.80% |
Interest receive rate | 4.00% |
Notional amount | $ 3,038 |
4-5 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 7.70% |
Interest receive rate | 3.90% |
4-5 years [member] | Cross-currency swaps [member] | U.S. dollars to Brazilian reais [member] | Variable to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.50% |
Interest receive rate | 3.90% |
Notional amount | $ 9,448 |
4-5 years [member] | Interest rate swap [member] | Mexican peso [member] | 6.0% variable to 5.9% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 5.80% |
Interest receive rate | 3.90% |
Notional amount | $ 1,698 |
4-5 years [member] | Interest rate swap [member] | Mexican peso [member] | 7.4% variable to 7.2% fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 7.20% |
Interest receive rate | 9.80% |
Later than 5 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to variable interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Notional amount | $ 6,889 |
Later than 5 years [member] | Cross-currency swaps [member] | U.S. dollars to Mexican pesos [member] | Fixed to fixed interest rate [member] |  |
Disclosure of financial instruments by type of interest rate [line items] |  |
Interest pay rate | 9.70% |
Interest receive rate | 4.00% |

X
- Definition Financial instruments designated as hedging derivative interest payable rate. + References No definition available. + Details
Name: | fmx_FinancialInstrumentsDesignatedAsHedgingDerivativeInterestPayableRate
Namespace Prefix: | fmx_
Data Type: | num:percentItemType
Balance Type: | na
Period Type: | duration

X
- Definition Financial instruments designated as hedging derivative interest receivable rate. + References No definition available. + Details
Name: | fmx_FinancialInstrumentsDesignatedAsHedgingDerivativeInterestReceivableRate
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_DisclosureOfFinancialInstrumentsByTypeOfInterestRateLineItems
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:stringItemType
Balance Type: | na
Period Type: | duration

X
- Definition The nominal or face amount of a financial instrument, used to calculate payments made on that instrument. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_112_c&doctype=Standard -URIDate 2018-03-16 + Details
Name: | ifrs-full_NotionalAmount
Namespace Prefix: | ifrs-full_
Data Type: | xbrli:monetaryItemType
Balance Type: | na
Period Type: | instant

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_CurrencySwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=fmx_USDollarToMexicanPersosMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_SevenPointFourPercentageFixedToSevenPointTwoPercentageVariableInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_FixedToVariableInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_FixedToFixedInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=fmx_USDollarToBrazilianReaisMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_VariableToVariableInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_VariableToFixedInterestRateMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_CLP
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_ClassesOfFinancialAssetsAxis=ifrs-full_InterestRateSwapContractMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | srt_CurrencyAxis=currency_MXN
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_VariableToFixedInterestRateTwoMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_TypesOfInterestRatesAxis=fmx_VariableToFixedInterestRateThreeMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_NotLaterThanOneYearMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanOneYearAndNotLaterThanTwoYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanTwoYearsAndNotLaterThanThreeYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanThreeYearsAndNotLaterThanFourYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFourYearsAndNotLaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |

X
- Details
Name: | ifrs-full_MaturityAxis=ifrs-full_LaterThanFiveYearsMember
Namespace Prefix: |
Data Type: | na
Balance Type: |
Period Type: |