Other Current Assets and Other Current Financial Assets - Other Current Assets (Details) - MXN ($) $ in Millions |
Dec. 31, 2025 |
Dec. 31, 2024 |
|---|---|---|
| Current assets [abstract] | ||
| Prepaid expenses | $ 4,940 | $ 5,197 |
| Agreements with customers, net of accumulated amortization | 100 | 132 |
| Licenses | 668 | 502 |
| Other | 280 | 411 |
| Other current assets | $ 5,988 | $ 6,242 |