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Equity - Additional Information (Detail)
 8 Months Ended 12 Months Ended
Nov. 17, 2022
MXN ($)
$ / shares
May 16, 2022
MXN ($)
$ / shares
Apr. 22, 2022
MXN ($)
$ / shares
shares
Sep. 28, 2021
MXN ($)
Sep. 14, 2021
MXN ($)
$ / shares
May 28, 2021
MXN ($)
 [1]
Apr. 27, 2021
MXN ($)
$ / shares
shares
Sep. 30, 2022
MXN ($)
shares
Dec. 31, 2022
MXN ($)
Director
Member
Vote
shares
Dec. 31, 2021
MXN ($)
shares
Dec. 31, 2020
MXN ($)
shares
Jul. 01, 2020
MXN ($)
Disclosure Of Equity [Line Items]                        
Percentage of acquisition, nominations and compensation corresponding to operating committee members                 20.00%      
Dividend payment per share | $ / shares $ 7.20 $ 7.20 $ 14.40                  
Dividend payment $ 3,637,998,000 $ 3,675,745,000                    
Total dividend payment amount     $ 7,313,743,000           $ 7,313,743,000      
Canceled Reserve for repurchase of shares     2,031,782,000       $ 1,550,000,000         $ 1,550,000,000
Reserve for repurchase of shares     2,000,000,000   $ 2,000,000,000       2,499,473,000 $ 5,531,292,000 $ 3,283,374,000  
Retained earnings     1,558,475,000           9,187,597,000 13,925,091,000 11,908,891,000  
Capital reduction per share | $ / shares         $ 7.80   $ 3.823095061582          
Capital reduction       $ 4,014,701,000   $ 2,000,000,000       6,014,701,000    
Capitalization of retained earnings     $ 8,027,155,000                  
Capital stock                 $ 8,197,536,000 $ 170,381,000 $ 6,185,082,000  
Cpital stock, shares | shares                 512,301,577 525,575,547 561,000,000  
Cancellation of repurchase of shares, shares | shares     13,273,970       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                 $ 34,076,000 $ 1,592,551,000 $ 1,592,551,000  
Percentage of legal reserve     20.00%           0.42% 934.70% 25.70%  
Maximum amount of repurchase shares                 $ 2,499,473,000      
Repurchase of shares               $ 1,999,987,000 (1,999,987,000) $ (3,000,037,000)    
Remaining Shares on repurchased                 $ 499,486,000      
Number of shares repurchased | shares               7,024,113        
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     $ 2,000,000,000       $ 3,000,000,000         $ 1,550,000,000
Series BB common stock [Member]                        
Disclosure Of Equity [Line Items]                        
Percentage of common stock                 15.00%      
Number of directors | Director                 4      
Capital stock                 $ 1,229,630,000 $ 25,558,000 $ 927,763,000  
Cpital stock, shares | shares                 76,845,237 78,836,332 84,150,000  
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      
Capital stock                 $ 6,967,906,000 $ 144,823,000 $ 5,257,319,000  
Cpital stock, shares | shares                 435,456,340 446,739,215 476,850,000  
Class I [member]                        
Disclosure Of Equity [Line Items]                        
Capital stock     $ 8,197,536,000                  
Cpital stock, shares | shares     512,301,577                  
[1] 3.823095061582