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Business Combinations and Disposals - Income Statement Information (Details) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2024 USD ($) | [1] | Dec. 31, 2024 MXN ($) | Dec. 31, 2023 MXN ($) | Dec. 31, 2022 MXN ($)
Disclosure of detailed information about business combination [line items] |  |  |  |
Loss before income taxes of discontinued operations | $ 3,149 | $ 65,669 | $ 89,648 | $ 49,138
Valora |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  |  |  | 10,064
Loss before income taxes of discontinued operations |  |  |  | 229
Net loss |  |  |  | (72)
Delek |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  | 3,672 |  |
Loss before income taxes of discontinued operations |  | (5) |  |
Net loss |  | $ (5) |  |
Sigma Supply |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  |  |  | 5,718
Loss before income taxes of discontinued operations |  |  |  | 463
Net loss |  |  |  | 463
Net Pay S.A.P.I de C.V. |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  |  | 1,527 |
Loss before income taxes of discontinued operations |  |  | 2 |
Net loss |  |  | $ (11) |
OK Market |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  |  |  | 2,635
Loss before income taxes of discontinued operations |  |  |  | 314
Net loss |  |  |  | 204
Atra, Hughes, Sunbelt, H.T. Berry, and Other Smaller Acquistions |  |  |  |
Disclosure of detailed information about business combination [line items] |  |  |  |
Total revenues |  |  |  | 2,148
Loss before income taxes of discontinued operations |  |  |  | 115
Net loss |  |  |  | $ 115
[1] | Convenience translation to U.S. dollars ($) – See Note 2.2.4

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