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Other Liabilities, Provisions, Contingencies and Commitments - Other (Details)
$ in Millions, $ in Millions
Dec. 31, 2020
USD ($)
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Disclosure of financial liabilities [abstract]      
Derivative financial instruments, non-current   $ 3,743 $ 1,672
Security deposits   1,279 809
Other non-current financial liabilities $ 252 $ 5,022 $ 2,481