XML 103 R83.htm IDEA: XBRL DOCUMENT v3.21.1
Other Current Assets and Other Current Financial Assets - Prepaid Expenses (Detail) - MXN ($)
$ in Millions
 12 Months Ended
Dec. 31, 2020
Dec. 31, 2019
Dec. 31, 2018
Disclosure Of Prepaid Expense Current [abstract]      
Advances for inventories $ 1,651 $ 1,359  
Advertising and promotional expenses paid in advance 93 89  
Advances to service suppliers 30 60  
Prepaid leases 93 239  
Prepaid insurance 181 129  
Others 376 325  
Current prepaid expenses 2,424 2,201  
Prepaid advertising and promotional expenses $ 7,471 $ 8,840 $ 7,695