Basis of Preparation - Write Downs (Details) - MXN ($) $ in Millions |
12 Months Ended | |
|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
|
| Disclosure of detailed information about investment property [line items] | ||
| Inventories | $ 641 | |
| Property, plant and equipment | 1,081 | |
| Additional expenses & losses | 1,749 | |
| Subtotal | 3,471 | |
| Insurance recovery | (3,294) | |
| Total | 177 | |
| Insurance recovery, accounts receivable | 1,166 | $ 334 |
| Insurance recovery, net cash flow received | 814 | 1,335 |
| Insurance recovery, operating activities | 731 | 1,090 |
| Insurance recovery, investing activities | 83 | $ 245 |
| 2025 Effects | ||
| Disclosure of detailed information about investment property [line items] | ||
| Inventories | 28 | |
| Property, plant and equipment | 0 | |
| Additional expenses & losses | 137 | |
| Subtotal | 165 | |
| Insurance recovery | (1,625) | |
| Total | (1,460) | |
| 2024 Effects | ||
| Disclosure of detailed information about investment property [line items] | ||
| Inventories | 613 | |
| Property, plant and equipment | 1,081 | |
| Additional expenses & losses | 1,612 | |
| Subtotal | 3,306 | |
| Insurance recovery | (1,669) | |
| Total | $ 1,637 | |