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Intangible Assets - Changes in Intangible Assets and Goodwill (Details) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2021 USD ($) | Dec. 31, 2021 MXN ($) | Dec. 31, 2020 MXN ($) | Dec. 31, 2019 MXN ($)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance | $ 7,709 | $ 158,138 | $ 155,501 | $ 146,562
Amortization expense |  | (2,694) | (2,465) | (1,812)
Beginning balance |  | 155,501 | 146,562 |
Right to produce and distribute trademark products |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 75,396 | 76,649 | 81,255
Beginning balance |  | 76,649 | 81,255 |
Goodwill |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 57,351 | 52,820 | 47,907
Beginning balance |  | 52,820 | 47,907 |
Trademark rights |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 8,073 | 8,647 | 6,600
Beginning balance |  | 8,647 | 6,600 |
Other indefinite lived intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 1,413 | 1,376 | 1,702
Beginning balance |  | 1,376 | 1,702 |
Total unamortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 142,233 | 139,492 | 137,464
Beginning balance |  | 139,492 | 137,464 |
Technology costs and management systems |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 4,247 | 4,404 | 4,392
Beginning balance |  | 4,404 | 4,392 |
Customer Relationship |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 9,192 | 9,023 | 1,619
Beginning balance |  | 9,023 | 1,619 |
Alcohol licenses |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 1,168 | 1,161 | 1,192
Beginning balance |  | 1,161 | 1,192 |
Other. |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 1,298 | 1,421 | 1,895
Beginning balance |  | 1,421 | 1,895 |
Total amortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 15,905 | 16,009 | 9,098
Beginning balance |  | 16,009 | 9,098 |
Accumulated depreciation, amortisation and impairment |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (10,032) | (8,961) | (6,840)
Amortization expense |  | (2,694) | (2,465) | (1,812)
Disposals |  | 890 | 177 | 127
Effect of movements in exchange rates |  | 787 | 195 | 238
Changes in value on the recognition of inflation effects |  | (54) | (28) | (28)
Beginning balance |  | (8,961) | (6,840) | (5,365)
Accumulated depreciation, amortisation and impairment | Technology costs and management systems |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (6,414) | (6,469) | (5,174)
Amortization expense |  | (1,473) | (1,537) | (1,338)
Disposals |  | 789 | 129 | 97
Effect of movements in exchange rates |  | 792 | 142 | 160
Changes in value on the recognition of inflation effects |  | (53) | (29) | (29)
Beginning balance |  | (6,469) | (5,174) | (4,064)
Accumulated depreciation, amortisation and impairment | Customer Relationship |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (1,608) | (827) | (393)
Amortization expense |  | (791) | (467) | (112)
Effect of movements in exchange rates |  | 10 | 32 | 25
Changes in value on the recognition of inflation effects |  |  | 1 |
Beginning balance |  | (827) | (393) | (306)
Accumulated depreciation, amortisation and impairment | Alcohol licenses |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (838) | (736) | (637)
Amortization expense |  | (102) | (99) | (123)
Disposals |  |  |  | 30
Beginning balance |  | (736) | (637) | (544)
Accumulated depreciation, amortisation and impairment | Other. |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (1,172) | (929) | (636)
Amortization expense |  | (328) | (362) | (239)
Disposals |  | 101 | 48 |
Effect of movements in exchange rates |  | (15) | 21 | 53
Changes in value on the recognition of inflation effects |  | (1) |  | 1
Beginning balance |  | (929) | (636) | (451)
Accumulated depreciation, amortisation and impairment | Total amortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | (10,032) | (8,961) | (6,840)
Amortization expense |  | (2,694) | (2,465) | (1,812)
Disposals |  | 890 | 177 | 127
Effect of movements in exchange rates |  | 787 | 195 | 238
Changes in value on the recognition of inflation effects |  | (54) | (28) | (28)
Beginning balance |  | (8,961) | (6,840) | (5,365)
Cost |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 168,170 | 164,462 | 153,402
Additions |  | 2,517 | 1,487 | 2,197
Acquisitions from business combinations (see Note 4) |  | 8,879 | 22,804 | 7,782
Changes in fair value of past acquisitions |  |  | (34) | (22)
Disposals |  | (1,133) | (1,195) | (410)
Effect of movements in exchange rates |  | (5,468) | (10,615) | (7,109)
Changes in value on the recognition of inflation effects |  | 62 | 38 | (6)
Impairment |  | (1,149) |  |
Beginning balance |  | 164,462 | 153,402 | 150,970
Cost | Right to produce and distribute trademark products |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 75,396 | 76,649 | 81,255
Additions |  | 2 | 1 |
Changes in fair value of past acquisitions |  |  |  | (2,887)
Effect of movements in exchange rates |  | (1,255) | (4,607) | (3,475)
Beginning balance |  | 76,649 | 81,255 | 87,617
Cost | Goodwill |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 57,351 | 52,820 | 47,907
Acquisitions from business combinations (see Note 4) |  | 7,940 | 12,080 | 6,542
Changes in fair value of past acquisitions |  |  | (1,086) | 2,903
Disposals |  | (12) | (183) |
Effect of movements in exchange rates |  | (2,303) | (4,704) | (2,068)
Impairment |  | (1,094) |  |
Beginning balance |  | 52,820 | 47,907 | 40,530
Cost | Trademark rights |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 8,073 | 8,647 | 6,600
Acquisitions from business combinations (see Note 4) |  | 65 | 2,101 | 469
Changes in fair value of past acquisitions |  |  | 285 |
Disposals |  |  | (116) | (48)
Effect of movements in exchange rates |  | (584) | (8) | (515)
Impairment |  | (55) |  |
Beginning balance |  | 8,647 | 6,600 | 6,694
Cost | Other indefinite lived intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 1,413 | 1,376 | 1,702
Additions |  | 127 |  | 208
Changes in fair value of past acquisitions |  |  |  | 153
Disposals |  | (10) | (311) |
Effect of movements in exchange rates |  | (80) | (4) | (100)
Beginning balance |  | 1,376 | 1,702 | 1,441
Cost | Total unamortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 142,233 | 139,492 | 137,464
Additions |  | 129 | 1 | 208
Acquisitions from business combinations (see Note 4) |  | 8,005 | 14,181 | 7,011
Changes in fair value of past acquisitions |  |  | (801) | 169
Disposals |  | (22) | (610) | (48)
Effect of movements in exchange rates |  | (4,222) | (9,323) | (6,158)
Impairment |  | (1,149) |  |
Beginning balance |  | 139,492 | 137,464 | 136,282
Cost | Technology costs and management systems |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 10,661 | 10,873 | 9,566
Additions |  | 1,140 | 771 | 823
Acquisitions from business combinations (see Note 4) |  |  | 26 | 759
Changes in fair value of past acquisitions |  |  |  | (6)
Transfer of completed development systems |  | 262 | 398 | 412
Disposals |  | (973) | (164) | (232)
Effect of movements in exchange rates |  | (641) | 276 | (552)
Beginning balance |  | 10,873 | 9,566 | 8,362
Cost | Customer Relationship |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 10,800 | 9,850 | 2,012
Acquisitions from business combinations (see Note 4) |  | 873 | 8,596 |
Changes in fair value of past acquisitions |  |  | 745 |
Effect of movements in exchange rates |  | 77 | (1,503) | (113)
Beginning balance |  | 9,850 | 2,012 | 2,125
Cost | Alcohol licenses |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 2,006 | 1,897 | 1,829
Additions |  | 145 | 111 | 191
Disposals |  | (36) | (43) | (130)
Beginning balance |  | 1,897 | 1,829 | 1,768
Cost | Other. |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 2,470 | 2,350 | 2,531
Additions |  | 1,103 | 604 | 975
Acquisitions from business combinations (see Note 4) |  | 1 | 1 | 12
Changes in fair value of past acquisitions |  |  | 22 | (185)
Transfer of completed development systems |  | (262) | (398) | (412)
Disposals |  | (102) | (378) |
Effect of movements in exchange rates |  | (682) | (65) | (286)
Changes in value on the recognition of inflation effects |  | 62 | 38 | (6)
Beginning balance |  | 2,350 | 2,531 | 2,433
Cost | Total amortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Ending balance |  | 25,937 | 24,970 | 15,938
Additions |  | 2,388 | 1,486 | 1,989
Acquisitions from business combinations (see Note 4) |  | 874 | 8,623 | 771
Changes in fair value of past acquisitions |  |  | 767 | (191)
Disposals |  | (1,111) | (585) | (362)
Effect of movements in exchange rates |  | (1,246) | (1,292) | (951)
Changes in value on the recognition of inflation effects |  | 62 | 38 | (6)
Beginning balance |  | $ 24,970 | 15,938 | $ 14,688
Specialty's Caf & Bakery, Inc | Cost |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (1,425) |
Specialty's Caf & Bakery, Inc | Cost | Goodwill |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (1,194) |
Specialty's Caf & Bakery, Inc | Cost | Trademark rights |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (215) |
Specialty's Caf & Bakery, Inc | Cost | Other indefinite lived intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (11) |
Specialty's Caf & Bakery, Inc | Cost | Total unamortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (1,420) |
Specialty's Caf & Bakery, Inc | Cost | Other. |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | (5) |
Specialty's Caf & Bakery, Inc | Cost | Total amortized intangible assets |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Specialty's disposal |  |  | $ (5) |

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