Balances and Transactions with Related Parties and Affiliated Companies - Key Management Remuneration (Details) - MXN ($) $ in Millions |
12 Months Ended | ||
|---|---|---|---|
Dec. 31, 2025 |
Dec. 31, 2024 |
Dec. 31, 2023 |
|
| Related party transactions [abstract] | |||
| Short-term employee benefits paid | $ 3,597 | $ 1,914 | $ 3,742 |
| Postemployment benefits | 68 | 71 | 54 |
| Termination benefits | 156 | 117 | 935 |
| Share-based payments | $ 1,100 | $ 947 | $ 943 |