Government Bonds, And Other Assets - Summary of Other Assets (Detail) $ in Thousands, $ in Thousands |
Dec. 31, 2025
USD ($)
|
Dec. 31, 2025
MXN ($)
|
Aug. 18, 2025
MXN ($)
|
Dec. 31, 2024
MXN ($)
|
|---|---|---|---|---|
| Disclosure Of Notes Receivable Government Bonds And Other Long Term Assets [Abstract] | ||||
| Restricted Cash | $ 19,834,399 | $ 17,119,599 | ||
| Guarantees | 11,281,010 | 4,288,778 | ||
| Payments in advance | 3,846,363 | 4,029,445 | ||
| Insurance | 1,932,648 | 1,922,587 | ||
| Other | 1,428,371 | 368,366 | ||
| Total other assets | $ 2,132,990 | 38,322,791 | 27,728,775 | |
| Restricted cash as collateral for financing transactions | 16,637,164 | $ 6,375,020 | 3,197,220 | |
| Restricted cash, judicial seizures | $ 14,972,193 | $ 2,417,406 |