Commitments - Estimated Value of Contracts (Detail) - Infrastructure and service works - MXN ($) $ in Thousands |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Commitments and contingencies [line items] | ||
| Estimated value of contracts | $ 49,170,056 | $ 73,387,702 |
| Up to 1 year | ||
| Commitments and contingencies [line items] | ||
| Estimated value of contracts | 11,081,914 | 26,894,474 |
| 1 to 3 years | ||
| Commitments and contingencies [line items] | ||
| Estimated value of contracts | 25,038,616 | 28,447,421 |
| 4 to 5 years | ||
| Commitments and contingencies [line items] | ||
| Estimated value of contracts | 13,049,526 | 17,469,459 |
| More than 5 years | ||
| Commitments and contingencies [line items] | ||
| Estimated value of contracts | $ 0 | $ 576,348 |