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Income Taxes - Summary of Temporary Differences Giving Rise to Deferred Income Tax Liabilities (Assets) (Detail) - MXN ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | $ (1,892) | $ (4,450) | $ (5,136) | $ (5,632)
Deferred income tax related to consolidated statement of income | 2,199 | 1,177 | 889 |
Deferred tax, asset | (6,209) | (7,771) |  |
Deferred tax liabilities | 4,317 | 3,321 |  |
Expected credit losses |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (135) | (64) |  |
Deferred income tax related to consolidated statement of income | (70) | 15 | (15) |
Inventories |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | 100 | 53 |  |
Deferred income tax related to consolidated statement of income | 58 | 5 | 18 |
Prepaid expenses |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | 22 | 20 |  |
Deferred income tax related to consolidated statement of income | 2 | (4) | (32) |
Property, plant and equipment, net |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (443) | (1,150) |  |
Deferred income tax related to consolidated statement of income | 455 | 314 | (118) |
Other assets |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | 35 | (190) |  |
Deferred income tax related to consolidated statement of income | 203 | 45 | 86 |
Finite useful lived intangible assets |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (121) | (10) |  |
Deferred income tax related to consolidated statement of income | (120) | 1 | 48 |
Indefinite lived intangible assets |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | 1,386 | 1,509 |  |
Deferred income tax related to consolidated statement of income | 260 | 591 | 123 |
Post-employment and other non-current employee benefits |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (388) | (438) |  |
Deferred income tax related to consolidated statement of income | 45 | (2) | 15 |
Derivative financial instruments |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (50) | 75 |  |
Deferred income tax related to consolidated statement of income | (126) | 73 | (3) |
Contingencies |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (607) | (921) |  |
Deferred income tax related to consolidated statement of income | 290 | (96) | (23) |
Employee profit sharing payable |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (667) | (533) |  |
Deferred income tax related to consolidated statement of income | 134 | 174 | (85) |
Tax loss carryforwards |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (3,717) | (5,726) |  |
Deferred income tax related to consolidated statement of income | 1,805 | 1,221 | 29 |
Tax credits to recover |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (399) | (726) |  |
Deferred income tax related to consolidated statement of income | 326 | 342 | 327 |
Cumulative other comprehensive income |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (69) | (394) |  |
Deferred income tax related to consolidated statement of income | 375 | (211) | (417) |
Liabilities of amortization of goodwill of business acquisition |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | 5,322 | 5,574 |  |
Deferred income tax related to consolidated statement of income | (252) | (543) | 0 |
Leases liabilities, net |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (75) | (43) |  |
Deferred income tax related to consolidated statement of income | (39) | (28) | (37) |
Other |  |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |  |
Deferred income tax related to consolidated statement of financial position | (2,086) | (1,486) |  |
Deferred income tax related to consolidated statement of income | $ (1,147) | $ (720) | $ 973 |

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