Income Taxes - Summary of Net Deferred Income Tax Liability (Detail) - MXN ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2024 |
Dec. 31, 2023 |
Dec. 31, 2022 |
|
| Major components of tax expense (income) [abstract] | |||
| Balance at beginning of the period | $ (4,450) | $ (5,136) | $ (5,632) |
| Deferred tax provision for the period | 2,199 | 1,177 | 889 |
| Change in the statutory rate | 0 | 0 | (82) |
| Effects in equity: | |||
| Unrealized loss (gain) on derivative financial instruments | 693 | (236) | (591) |
| Cumulative translation effect and inflation adjustment | (16) | (279) | 107 |
| Remeasurements of the net defined benefit liability | (318) | 24 | 173 |
| Balance at end of the period | $ (1,892) | $ (4,450) | $ (5,136) |