XML 166 R146.htm IDEA: XBRL DOCUMENT v3.21.1
Non-Controlling Interest in Consolidated Subsidiaries (Detail)
$ in Millions, $ in Millions
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items]      
Non controlling interest $ 3,491 $ 69,444 $ 73,762
Coca-Cola FEMSA [member]      
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items]      
Non controlling interest   66,800 72,649
Other [Member]      
Disclosure Of Non Controlling Interest In Consolidated Subsidiaries [line items]      
Non controlling interest   $ 2,644 $ 1,113