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Other Current Assets and Other Current Financial Assets - Other Current Financial Assets (Details)
$ in Millions, $ in Millions
Dec. 31, 2021
USD ($)
Dec. 31, 2021
MXN ($)
Dec. 31, 2020
MXN ($)
Other Current Assets and Other Current Financial Assets      
Restricted cash   $ 688 $ 77
Derivative financial instruments (see Note 21)   1,629 573
Note receivables   163 31
Other current financial assets $ 121 2,480 681
Brazilian Reais      
Other Current Assets and Other Current Financial Assets      
Restricted cash   685 74
Chilean peso      
Other Current Assets and Other Current Financial Assets      
Restricted cash   $ 3 $ 3