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Intangible Assets - Summary of Reconciliation of Changes in Intangible Assets and Goodwill (Detail) $ in Millions, $ in Millions | 12 Months Ended
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Dec. 31, 2019 MXN ($) | Dec. 31, 2019 USD ($) | [2] | Dec. 31, 2018 MXN ($) | Dec. 31, 2017 MXN ($)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | $ 145,610 |  |  | $ 154,093 |
Ending balance | 146,562 | [1] | $ 7,771 | 145,610 | $ 154,093
Right to produce and distribute trademark products [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 87,617 |  |  | 91,902 |
Ending balance | 81,255 |  |  | 87,617 | 91,902
Goodwill [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 40,530 |  |  | 43,449 |
Ending balance | 47,906 |  |  | 40,530 | 43,449
Trademark rights [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 6,699 |  |  | 7,185 |
Ending balance | 6,600 |  |  | 6,699 | 7,185
Other indefinite lived intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 1,977 |  |  | 2,257 |
Ending balance | 2,160 |  |  | 1,977 | 2,257
Total unamortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 136,823 |  |  | 144,793 |
Ending balance | 137,921 |  |  | 136,823 | 144,793
Technology costs and management systems [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 4,270 |  |  | 3,841 |
Ending balance | 4,356 |  |  | 4,270 | 3,841
Systems in Development [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 777 |  |  | 1,291 |
Ending balance | 675 |  |  | 777 | 1,291
Alcohol licenses [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 1,224 |  |  | 1,180 |
Ending balance | 1,192 |  |  | 1,224 | 1,180
Other [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 2,516 |  |  | 2,988 |
Ending balance | 2,418 |  |  | 2,516 | 2,988
Total amortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 8,787 |  |  | 9,300 |
Ending balance | 8,641 |  |  | 8,787 | 9,300
Cost [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 151,348 |  |  | 158,667 | 156,247
Additions | 2,198 |  |  | 1,793 | 3,344
Acquisitions from business combinations (see Note 4) | 7,782 |  |  | 5,997 | 4,375
Changes in fair value of past acquisitions | (22) |  |  | 272 | (306)
Internal development |  |  |  | 41 |
disposals | (758) |  |  | (191) | 110
Effect of movements in exchange rates | (7,111) |  |  | (10,810) | (3,667)
Changes in value on the recognition of inflation effects | (6) |  |  | 57 | (552)
Venezuela deconsolidation effect |  |  |  |  | (884)
Ending balance | 153,431 |  |  | 151,348 | 158,667
Cost [member] | Right to produce and distribute trademark products [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 87,617 |  |  | 91,902 | 85,338
Additions |  |  |  |  | 1,288
Acquisitions from business combinations (see Note 4) |  |  |  | 4,602 | 4,144
Changes in fair value of past acquisitions | (2,887) |  |  |  | 5,167
Effect of movements in exchange rates | (3,475) |  |  | (5,005) | (2,563)
Changes in value on the recognition of inflation effects |  |  |  |  | (727)
Venezuela deconsolidation effect |  |  |  |  | (745)
Ending balance | 81,255 |  |  | 87,617 | 91,902
Cost [member] | Goodwill [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 40,530 |  |  | 43,449 | 51,857
Additions |  |  |  | 75 |
Acquisitions from business combinations (see Note 4) | 6,542 |  |  | 842 | 140
Changes in fair value of past acquisitions | 2,903 |  |  | 272 | (7,022)
Effect of movements in exchange rates | (2,069) |  |  | (4,108) | (1,526)
Ending balance | 47,906 |  |  | 40,530 | 43,449
Cost [member] | Trademark rights [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 6,699 |  |  | 7,185 | 6,225
Acquisitions from business combinations (see Note 4) | 469 |  |  | 170 | 5
Changes in fair value of past acquisitions |  |  |  |  | 836
disposals | (48) |  |  |  |
Effect of movements in exchange rates | (520) |  |  | (656) | 119
Ending balance | 6,600 |  |  | 6,699 | 7,185
Cost [member] | Other indefinite lived intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 1,977 |  |  | 2,257 | 2,151
Additions | 164 |  |  | 71 | 6
Changes in fair value of past acquisitions | 153 |  |  |  | 9
disposals |  |  |  | (2) |
Effect of movements in exchange rates | (134) |  |  | (349) | 91
Ending balance | 2,160 |  |  | 1,977 | 2,257
Cost [member] | Total unamortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 136,823 |  |  | 144,793 | 145,571
Additions | 164 |  |  | 146 | 1,294
Acquisitions from business combinations (see Note 4) | 7,011 |  |  | 5,614 | 4,289
Changes in fair value of past acquisitions | 169 |  |  | 272 | (1,010)
disposals | (48) |  |  | (2) |
Effect of movements in exchange rates | (6,198) |  |  | (10,118) | (3,879)
Changes in value on the recognition of inflation effects |  |  |  |  | (727)
Venezuela deconsolidation effect |  |  |  |  | (745)
Ending balance | 137,921 |  |  | 136,823 | 144,793
Cost [member] | Technology costs and management systems [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 8,707 |  |  | 7,103 | 6,124
Additions | 824 |  |  | 1,051 | 464
Acquisitions from business combinations (see Note 4) | 759 |  |  | 35 | 6
Changes in fair value of past acquisitions | (6) |  |  |  | (188)
Transfer of completed development systems | 412 |  |  | 904 | 412
disposals | (580) |  |  | (43) | 110
Effect of movements in exchange rates | (553) |  |  | (343) | 175
Changes in value on the recognition of inflation effects | 0 |  |  |  |
Ending balance | 9,563 |  |  | 8,707 | 7,103
Cost [member] | Systems in Development [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 777 |  |  | 1,291 | 798
Additions | 334 |  |  | 371 | 920
Acquisitions from business combinations (see Note 4) |  |  |  | 57 |
Transfer of completed development systems | (413) |  |  | (904) | (412)
Effect of movements in exchange rates | (23) |  |  | (38) | (15)
Ending balance | 675 |  |  | 777 | 1,291
Cost [member] | Alcohol licenses [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 1,768 |  |  | 1,637 | 1,416
Additions | 191 |  |  | 131 | 221
disposals | (130) |  |  |  |
Ending balance | 1,829 |  |  | 1,768 | 1,637
Cost [member] | Other [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 3,273 |  |  | 3,843 | 2,338
Additions | 685 |  |  | 94 | 445
Acquisitions from business combinations (see Note 4) | 12 |  |  | 291 | 80
Changes in fair value of past acquisitions | (185) |  |  |  | 892
Internal development |  |  |  | 41 |
Transfer of completed development systems | 1 |  |  |  |
disposals |  |  |  | (146) |
Effect of movements in exchange rates | (337) |  |  | (311) | 52
Changes in value on the recognition of inflation effects | (6) |  |  | 57 | 175
Venezuela deconsolidation effect |  |  |  |  | (139)
Ending balance | 3,443 |  |  | 3,273 | 3,843
Cost [member] | Total amortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | 14,525 |  |  | 13,874 | 10,676
Additions | 2,034 |  |  | 1,647 | 2,050
Acquisitions from business combinations (see Note 4) | 771 |  |  | 383 | 86
Changes in fair value of past acquisitions | (191) |  |  |  | 704
Internal development |  |  |  | 41 |
disposals | (710) |  |  | (189) | 110
Effect of movements in exchange rates | (913) |  |  | (692) | 212
Changes in value on the recognition of inflation effects | (6) |  |  | 57 | 175
Venezuela deconsolidation effect |  |  |  |  | (139)
Ending balance | 15,510 |  |  | 14,525 | 13,874
Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | (5,738) |  |  | (4,574) | (2,979)
Amortization expense | (1,811) |  |  | (1,913) | (1,259)
Impairment losses |  |  |  |  | (110)
disposals | 475 |  |  | 191 |
Effect of movements in exchange rates | 233 |  |  | 235 | (106)
Changes in value on the recognition of inflation effects | (28) |  |  | (52) |
Venezuela deconsolidation effect |  |  |  |  | (120)
Ending balance | (6,869) |  |  | (5,738) | (4,574)
Accumulated depreciation, amortisation and impairment [member] | Technology costs and management systems [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | (4,437) |  |  | (3,262) | (1,937)
Amortization expense | (1,351) |  |  | (1,453) | (961)
disposals | 445 |  |  | 93 |
Effect of movements in exchange rates | 165 |  |  | 236 | (254)
Changes in value on the recognition of inflation effects | (29) |  |  | (51) |
Ending balance | (5,207) |  |  | (4,437) | (3,262)
Accumulated depreciation, amortisation and impairment [member] | Alcohol licenses [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | (544) |  |  | (457) | (376)
Amortization expense | (123) |  |  | (87) | (81)
disposals | 30 |  |  |  |
Ending balance | (637) |  |  | (544) | (457)
Accumulated depreciation, amortisation and impairment [member] | Other [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | (757) |  |  | (855) | (666)
Amortization expense | (337) |  |  | (373) | (217)
disposals |  |  |  | 98 |
Effect of movements in exchange rates | 68 |  |  | (1) | 148
Changes in value on the recognition of inflation effects | 1 |  |  | (1) |
Venezuela deconsolidation effect |  |  |  |  | (120)
Ending balance | (1,025) |  |  | (757) | (855)
Accumulated depreciation, amortisation and impairment [member] | Total amortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
Beginning balance | (5,738) |  |  | (4,574) | (2,979)
Amortization expense | (1,811) |  |  | (1,913) | (1,259)
disposals | 475 |  |  | 191 |
Effect of movements in exchange rates | 233 |  |  | 235 | (106)
Changes in value on the recognition of inflation effects | (28) |  |  | (52) |
Venezuela deconsolidation effect |  |  |  |  | (120)
Ending balance | $ (6,869) |  |  | (5,738) | $ (4,574)
Philippines [member] | Cost [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | (4,478) |
Philippines [member] | Cost [member] | Right to produce and distribute trademark products [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | (3,882) |
Philippines [member] | Cost [member] | Total unamortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | (3,882) |
Philippines [member] | Cost [member] | Other [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | (596) |
Philippines [member] | Cost [member] | Total amortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | (596) |
Philippines [member] | Accumulated depreciation, amortisation and impairment [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | 375 |
Philippines [member] | Accumulated depreciation, amortisation and impairment [member] | Other [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | 375 |
Philippines [member] | Accumulated depreciation, amortisation and impairment [member] | Total amortized intangible assets [member] |  |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |  |
disposals |  |  |  | $ 375 |
[1] | The Company initially adopted IFRS 16 at January 1st, 2019 using the modified retrospectively approach under which the comparative information is not restated. – See Note 2.4.1
[2] | Convenience translation to U.S. dollars ($) – See Note 2.2.3

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