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Capital Stock and Long-term Retention Plan - Capital Stock (Details)
$ / shares in Units, shares in Thousands, $ in Thousands, $ in Millions
 1 Months Ended 12 Months Ended
Apr. 30, 2021
USD ($)
shares
Dec. 31, 2021
MXN ($)
item
$ / shares
shares
Dec. 31, 2020
MXN ($)
shares
Dec. 31, 2020
USD ($)
Dec. 31, 2019
MXN ($)
shares
Classes of share capital          
Number of classes of capital stock | item   4      
Number of shares in each CPO   117      
Number of CPOs in each GDS   5      
Authorized (in shares)   352,134,000      
Total number of shares issued   352,134,000      
Repurchased (in shares) 5,173,200        
Held by trust (in shares)   (22,838,100)      
Outstanding (in shares)   329,295,900 325,992,500   337,244,300
Shares in the form of CPOs, Authorized and Issued   290,849,700      
Shares in the form of CPOs, Held by trust   17,158,600      
Shares in the form of CPOs, Outstanding   273,691,100      
Shares not in the form of CPOs, Authorized and Issued   61,284,300      
Shares not in the form of CPOs, Held by trust   5,679,500      
Shares not in the form of CPOs, Outstanding   55,604,800      
Issued capital | $   $ 4,836,708 $ 4,907,765    
Authorized capital | $   $ 2,423,549      
Shares repurchased $ 44.2   $ 195,597   $ 1,385,750
Series "A" Shares          
Classes of share capital          
Par value of shares | $ / shares   $ 0      
Number of shares in each CPO   25      
Authorized (in shares)   121,073,900      
Total number of shares issued   121,073,900      
Held by trust (in shares)   (6,988,900)      
Outstanding (in shares)   114,085,000 113,019,200   116,223,900
Series "B" Shares          
Classes of share capital          
Par value of shares | $ / shares   $ 0      
Number of shares in each CPO   22      
Authorized (in shares)   57,046,900      
Total number of shares issued   57,046,900      
Held by trust (in shares)   (5,583,400)      
Outstanding (in shares)   51,463,500 50,928,500   52,852,800
CPOs          
Classes of share capital          
Authorized (in shares)   2,485,900      
Total number of shares issued   2,485,900      
Held by trust (in shares)   (146,700)      
Outstanding (in shares)   2,339,200 2,314,900   2,402,400
Shares in the form of CPOs, Repurchased     616,000    
Shares repurchased | $       $ 5.3  
Series "D" Shares          
Classes of share capital          
Par value of shares | $ / shares   $ 0      
Number of shares in each CPO   35      
Authorized (in shares)   87,006,600      
Total number of shares issued   87,006,600      
Held by trust (in shares)   (5,132,900)      
Outstanding (in shares)   81,873,700 81,022,400   84,083,800
Series "L" Shares          
Classes of share capital          
Par value of shares | $ / shares   $ 0      
Number of shares in each CPO   35      
Authorized (in shares)   87,006,600      
Total number of shares issued   87,006,600      
Held by trust (in shares)   (5,132,900)      
Outstanding (in shares)   81,873,700 81,022,400   84,083,800