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Debt - Summary of Long Term Debt Maturities (Detail) $ in Thousands, $ in Millions | Dec. 31, 2023 MXN ($) | Dec. 31, 2023 USD ($) | Dec. 31, 2022 MXN ($)
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Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | $ 339,713,449 | $ 20,109 | $ 408,565,066
2025 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | 14,573,986 |  |
2026 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | 29,974,291 |  |
2027 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | 14,095,366 |  |
2028 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | 40,787,112 |  |
2029 [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | 16,893,500 |  |
2030 and thereafter [member] |  |  |
Disclosure of detailed information about borrowings [line items] |  |  |
Long-term debt | $ 223,389,194 |  |

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