Business Combinations and Disposals - Acquisition Information (Details) - MXN ($) $ in Millions |
1 Months Ended | 12 Months Ended | ||
|---|---|---|---|---|
Sep. 30, 2024 |
Dec. 31, 2025 |
Dec. 31, 2024 |
Mar. 31, 2023 |
|
| Disclosure of detailed information about business combination [line items] | ||||
| Deductible goodwill, tax purposes, period | 15 years | |||
| Delek | ||||
| Disclosure of detailed information about business combination [line items] | ||||
| Business acquisition, percentage of equity interests acquired | 100.00% | |||
| Business acquisition, consideration transferred | $ 7,683 | |||
| Acquisition-related costs | $ 61 | |||
| Net Pay S.A.P.I de C.V. | ||||
| Disclosure of detailed information about business combination [line items] | ||||
| Business acquisition, percentage of equity interests acquired | 100.00% | |||
| Business acquisition, consideration transferred | $ 4,422 |