Property, plant & equipment - Additional Information (Detail) - MXN ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|---|---|---|---|
| Property, plant and equipment [abstract] | |||
| Outstanding payment to suppliers in additions to property plant and equipment | $ 3,503 | $ 499 | $ 1,971 |