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Debt - Summary of Senior Notes Outstanding (Detail) - MXN ($) $ in Thousands | Sep. 30, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | $ 507,043,629 | $ 510,589,480
U.S. dollars [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 150,624,187 | 164,945,155
Mexican pesos [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 83,377,777 | 53,554,397
Euros [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 114,882,469 | 129,358,533
Pound sterling [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 47,579,931 | 51,608,257
Brazilian reais [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 28,499,887 | 33,673,729
Japanese yen [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 1,542,968 | 1,924,847
Chilean pesos [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 3,582,591 | 3,964,099
Senior Notes 1 [member] | U.S. dollars [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 150,624,187 | 164,945,155
Senior Notes 1 [member] | Mexican pesos [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 83,377,777 | 53,554,397
Senior Notes 1 [member] | Euros [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 114,882,469 | 129,358,533
Senior Notes 1 [member] | Pound sterling [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 47,579,931 | 51,608,257
Senior Notes 1 [member] | Brazilian reais [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 28,499,887 | 33,673,729
Senior Notes 1 [member] | Japanese yen [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | 1,542,968 | 1,924,847
Senior Notes 1 [member] | Chilean pesos [member] |  |
Disclosure of Senior Notes Outstanding [Line Items] |  |
Borrowings | $ 3,582,591 | $ 3,964,099

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