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Other Liabilities, Provisions and Commitments - Summary of Changes in Balance of Provisions Recorded (Detail) - MXN ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of other provisions [line items] |  |  |
Balance at beginning of the period | $ 3,270 |  |
Balance at end of the period | 2,788 | $ 3,270 |
Taxes |  |  |
Disclosure of other provisions [line items] |  |  |
Balance at beginning of the period | 1,348 | 1,823 | $ 2,066
Penalties and other charges | 69 | 228 | 109
New contingencies | 4 | 4 | 306
Cancellation and adjustments | (283) | (447) | (177)
Payments | (107) | (155) | (473)
Effect of foreign currency exchange rates | (91) | (105) | (8)
Balance at end of the period | 940 | 1,348 | 1,823
Cancellation and adjustments, reduction of accessories in contingencies | 240 |  |
Labor |  |  |
Disclosure of other provisions [line items] |  |  |
Balance at beginning of the period | 1,308 | 1,385 | 1,472
Penalties and other charges | 71 | 64 | 80
New contingencies | 361 | 843 | 516
Cancellation and adjustments | (340) | (523) | (385)
Contingencies added in business combinations | 0 | 0 | 65
Payments | (181) | (308) | (301)
Effect of foreign currency exchange rates | (39) | (153) | (62)
Balance at end of the period | 1,180 | 1,308 | 1,385
Legal |  |  |
Disclosure of other provisions [line items] |  |  |
Balance at beginning of the period | 614 | 679 | 612
Penalties and other charges | 52 | 50 | 57
New contingencies | 36 | 117 | 75
Cancellation and adjustments | (35) | (109) | (79)
Contingencies added in business combinations | 0 | 0 | 149
Payments | (5) | (68) | (110)
Effect of foreign currency exchange rates | 6 | (55) | (25)
Balance at end of the period | $ 668 | $ 614 | $ 679

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