v3.8.0.1
Document and Entity Information
12 Months Ended
Dec. 31, 2017
shares
Document Information [Line Items]  
Document Type 20-F
Amendment Flag false
Document Period End Date Dec. 31, 2017
Document Fiscal Year Focus 2017
Document Fiscal Period Focus FY
Trading Symbol FMX
Entity Registrant Name MEXICAN ECONOMIC DEVELOPMENT INC
Entity Central Index Key 0001061736
Current Fiscal Year End Date --12-31
Entity Well-known Seasoned Issuer Yes
Entity Current Reporting Status Yes
Entity Filer Category Large Accelerated Filer
BD units [member]  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 2,161,177,770
B units [member]  
Document Information [Line Items]  
Entity Common Stock, Shares Outstanding 1,417,048,500