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Cash and Cash Equivalents (Details)
$ in Millions, $ in Millions
Dec. 31, 2021
USD ($)
Dec. 31, 2021
MXN ($)
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Dec. 31, 2018
MXN ($)
Cash and cash equivalents [abstract]            
Cash and bank balances   $ 32,145   $ 43,990    
Cash equivalents (see Note 3.5)   65,262   63,634    
Cash and cash equivalents $ 4,748 $ 97,407 $ 5,246 $ 107,624 $ 65,562 $ 62,047