XML 104 R84.htm IDEA: XBRL DOCUMENT v3.21.1
Other Current Assets and Other Current Financial Assets - Other Current Financial Assets (Details)
$ in Millions, $ in Millions
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Disclosure of Restricted Cash and Cash Equivalents [line items]      
Current restricted cash   $ 77 $ 92
Derivative financial instruments (see Note 21)   573 1,008
Note receivables   31 46
Other current financial assets $ 34 681 1,146
Brazilian reais [member]      
Disclosure of Restricted Cash and Cash Equivalents [line items]      
Current restricted cash   74 89
Chilean peso [member]      
Disclosure of Restricted Cash and Cash Equivalents [line items]      
Current restricted cash   $ 3 $ 3