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Equity - Additional Information (Detail)
 10 Months Ended 12 Months Ended
Sep. 28, 2021
MXN ($)
Sep. 14, 2021
MXN ($)
$ / shares
May 28, 2021
MXN ($)
 [1]
Apr. 27, 2021
MXN ($)
$ / shares
shares
Nov. 20, 2019
MXN ($)
$ / shares
Aug. 29, 2019
MXN ($)
$ / shares
May 17, 2019
MXN ($)
Apr. 23, 2019
MXN ($)
$ / shares
Dec. 31, 2021
MXN ($)
shares
Dec. 31, 2021
MXN ($)
Vote
Director
Member
Dec. 31, 2020
MXN ($)
Dec. 31, 2019
MXN ($)
Jul. 01, 2020
MXN ($)
Apr. 25, 2018
MXN ($)
Disclosure Of Equity [Line Items]                            
Percentage of acquisition, nominations and compensation corresponding to operating committee members                   20.00%        
Dividend payment per share | $ / shares         $ 4.21 $ 4.21   $ 8.42            
Dividend payment         $ 2,212,673,000 $ 2,212,673,000                
Canceled Reserve for repurchase of shares       $ 1,550,000,000       $ 1,250,000,000         $ 1,550,000,000  
Reserve for repurchase of shares   $ 2,000,000,000             $ 5,531,292,000 $ 5,531,292,000 $ 3,283,374,000 $ 3,283,374,000    
Capital reduction per share | $ / shares   $ 7.80   $ 3.823095061582       $ 3.03            
Capital reduction $ 4,014,701,000   $ 2,000,000,000       $ 1,592,494,000     $ 6,014,701,000   1,592,494,000    
Cancellation of repurchase of shares, shares | shares       35,424,453                    
Description of legal reserves                   General Corporate Law requires that at least 5% of the unconsolidated net income of the year, be transferred to the legal reserve until the reserve equals 20% of capital stock at par value (nominal pesos).        
Legal reserve                 1,592,551,000 $ 1,592,551,000 $ 1,592,551,000 $ 1,592,551,000    
Percentage of legal reserve                   934.70% 25.70% 25.70%    
Maximum amount of repurchase shares                   $ 5,531,292,000        
Repurchase of shares                 $ 3,000,037,000 (3,000,037,000)        
Remaining Shares on repurchased                   $ 2,531,255,000        
Number of shares repurchased | shares                 13,273,970          
Non-Mexican and individual shareholders [Member]                            
Disclosure Of Equity [Line Items]                            
Additional income tax on dividend                   10.00%        
Top of Range [Member]                            
Disclosure Of Equity [Line Items]                            
Reserve for repurchase of shares   $ 3,000,000,000   $ 3,000,000,000       $ 1,550,000,000         $ 1,550,000,000 $ 1,250,000,000
Series BB common stock [Member]                            
Disclosure Of Equity [Line Items]                            
Percentage of common stock                   15.00%        
Number of directors | Director                   4        
Series B And BB Common Stock [Member]                            
Disclosure Of Equity [Line Items]                            
Number of vote per share | Vote                   1        
Maximum percentage of common stock                   10.00%        
Percentage of not having voting rights                   10.00%        
Series B common stock [Member]                            
Disclosure Of Equity [Line Items]                            
Percentage of common stock                   10.00%        
Number of directors | Director                   11        
Percentage of voting rights                   10.00%        
Right to appoint members number | Member                   7        
Number of members elected to the board of directors at a Shareholders' Meeting | Member                   1        
[1] 3.823095061582