Government Bonds, And Other Assets - Summary of Roll forward of the Mexican Bonds (Detail) - Mexican Bonds - Mexican Government - MXN ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of Roll Forward Related to the Promissory Notes [Roll Forward] | ||
| Balance as of the beginning of the year | $ 35,875,353 | $ 64,132,418 |
| Government Bonds collected (1) | (14,359,299) | (28,096,861) |
| Accrued interest | 1,759,219 | 4,612,403 |
| Interests received from bonds | (1,819,299) | (4,854,744) |
| Amortized cost | (21,335) | 79,410 |
| Reversal of impairment of bonds | 1,297 | 2,727 |
| Balance at the end of the year | $ 21,435,936 | $ 35,875,353 |