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Significant Accounting Policies - Other current assets, Property, plant and equipment, Leases (Details) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020 | Dec. 31, 2019
Retail Stores |  |  |
Property, Plant and Equipment |  |  |
Operating lease term | 15 years |  |
Minimum | Office Space |  |  |
Property, Plant and Equipment |  |  |
Operating lease term | 3 years |  |
Maximum | Office Space |  |  |
Property, Plant and Equipment |  |  |
Operating lease term | 5 years |  |
Buildings | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 25 years |  |
Buildings | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 50 years |  |
Machinery and equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 7 years |  |
Machinery and equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 15 years |  |
Distribution equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 4 years |  |
Distribution equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 10 years |  |
Refrigeration equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 5 years |  |
Refrigeration equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 7 years |  |
Returnable bottles | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 1 year 6 months |  |
Returnable bottles | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 3 years |  |
Leasehold improvements | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 15 years |  |
Information technology equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 3 years |  |
Information technology equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 5 years |  |
Other equipment | Minimum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 3 years |  |
Other equipment | Maximum |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 10 years |  |
Coca-Cola FEMSA |  |  |
Property, Plant and Equipment |  |  |
Amortization expense | $ 219 | $ 213 | $ 273
Coca-Cola FEMSA | PET bottles |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 1 year 6 months |  |
Coca-Cola FEMSA | Glass bottles |  |  |
Property, Plant and Equipment |  |  |
Estimated useful lives of principal assets | 3 years |  |

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- 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 2021-01-01 -Paragraph 112 -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2021-en-r&anchor=para_112_c&doctype=Standard -URIDate 2021-03-24 + Details
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