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Equity - Additional Information (Detail) - MXN ($) $ / shares in Units, $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of classes of share capital [line items] |  |  |
Outstanding shares (in shares) | 16,806,658,096 | 16,806,658,096 |
Fixed capital stock (nominal value) per share | $ 0 | $ 0 |
Issued capital, ordinary shares | $ 934 | $ 934 |
Percentage of income to be transferred to reserve | 5.00% |  |
Minimum percentage of capital stock at nominal value to be transferred to reserve | 20.00% |  |
Amount in legal reserve | $ 412 | $ 412 | $ 412
Balance in legal reserve fund | $ 7,925 |  |
A |  |  |
Disclosure of classes of share capital [line items] |  |  |
Equity threshold percentage | 50.10% |  |
D |  |  |
Disclosure of classes of share capital [line items] |  |  |
Equity threshold percentage | 49.90% |  |

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- Definition Amount in legal reserve + References No definition available. + Details
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