Financial Instruments - Summarizes Company's Financial Assets and Liabilities Measured at Fair Value (Detail) - MXN ($) $ in Millions |
Dec. 31, 2024 |
Dec. 31, 2023 |
|---|---|---|
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative financial instruments | $ 4,702 | $ 96 |
| Level 1 | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative financial instruments | 40 | 228 |
| Derivative financial instruments liability | 335 | 202 |
| Trust assets of labor obligations | 1,555 | 1,426 |
| Level 2 | ||
| Disclosure of detailed information about financial instruments [line items] | ||
| Derivative financial instruments | 5,259 | 131 |
| Derivative financial instruments liability | 2,085 | 5,146 |
| Trust assets of labor obligations | $ 0 | $ 0 |