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Debt - Summary of Senior Notes Outstanding (Detail) - MXN ($)
$ in Thousands
Dec. 31, 2023
Dec. 31, 2022
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings $ 500,677,052 $ 510,589,480
U.S. dollars [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 143,528,274 164,945,155
Mexican pesos [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 89,926,765 53,554,397
Euros [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 111,553,842 129,358,533
Pound sterling [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 47,315,652 51,608,257
Japanese yen [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 1,557,115 1,924,847
Brazilian reais [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 28,788,006 33,673,729
Chilean pesos [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 3,541,257 3,964,099
Senior Notes 1 [member] | U.S. dollars [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 143,528,274 164,945,155
Senior Notes 1 [member] | Mexican pesos [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 89,926,765 53,554,397
Senior Notes 1 [member] | Euros [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 111,553,842 129,358,533
Senior Notes 1 [member] | Pound sterling [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 47,315,652 51,608,257
Senior Notes 1 [member] | Japanese yen [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 1,557,115 1,924,847
Senior Notes 1 [member] | Brazilian reais [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings 28,788,006 33,673,729
Senior Notes 1 [member] | Chilean pesos [member]    
Disclosure of Senior Notes Outstanding [Line Items]    
Borrowings $ 3,541,257 $ 3,964,099