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Debt - Summary of Short Term Debt Maturities (Detail) - MXN ($)
$ in Thousands
 9 Months Ended 12 Months Ended
Sep. 30, 2023
Dec. 31, 2022
Disclosure of detailed information about borrowings [line items]    
Short-term debt $ 152,921,592 $ 102,024,414
Weighted-average interest rate 7.11% 8.50%
Senior Notes 1 [member] | Obligations and senior notes [member]    
Disclosure of detailed information about borrowings [line items]    
Short-term debt $ 85,340,050 $ 36,698,853
Lines of credit [member]    
Disclosure of detailed information about borrowings [line items]    
Short-term debt 67,581,542 65,325,561
Finance Leases [member]    
Disclosure of detailed information about borrowings [line items]    
Short-term debt $ 0 $ 0