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Equity - Share Repurchase Program (Details) - MXN ($) $ in Millions | 12 Months Ended |  |  |  |  |
--- | --- | --- | --- | --- | --- | ---
Dec. 31, 2024 | Sep. 30, 2024 | Jun. 30, 2024 | Mar. 31, 2024 | Dec. 31, 2023 | Oct. 31, 2023
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares outstanding (in shares) | 17,891,131,350 |  |  |  | 17,891,131,350 |
Shares repurchased | $ 20,308 |  |  |  |  |
Capital Stock |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares outstanding (in shares) | 17,380,124,735 | 17,380,124,735 | 17,650,487,035 | 17,827,507,880 | 17,889,224,850 | 17,891,131,350
Shares repurchased | $ 86 |  |  |  |  |
Treasury shares |  |  |  |  |  |
Disclosure of classes of share capital [line items] |  |  |  |  |  |
Shares outstanding (in shares) | 0 | 270,362,300 | 177,020,845 | 61,716,970 | 1,906,500 |

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