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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, 2018 MXN ($) | Dec. 31, 2018 USD ($) | [1] | Dec. 31, 2017 MXN ($) | Dec. 31, 2016 MXN ($)
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | $ 154,093 |  | $ 153,268 |
Ending balance | 145,610 | $ 7,416 | 154,093 | $ 153,268
Right to produce and distribute trademark products [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 91,902 |  | 85,338 |
Ending balance | 87,617 |  | 91,902 | 85,338
Goodwill [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 43,449 |  | 51,857 |
Ending balance | 40,530 |  | 43,449 | 51,857
Trademark rights [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 7,185 |  | 6,225 |
Ending balance | 6,699 |  | 7,185 | 6,225
Other indefinite lived intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 2,257 |  | 2,151 |
Ending balance | 1,977 |  | 2,257 | 2,151
Total unamortized intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 144,793 |  | 145,571 |
Ending balance | 136,823 |  | 144,793 | 145,571
Technology costs and management systems [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 3,841 |  | 4,187 |
Ending balance | 4,270 |  | 3,841 | 4,187
Systems in Development [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 1,291 |  | 798 |
Ending balance | 777 |  | 1,291 | 798
Alcohol licenses [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 1,180 |  | 1,040 |
Ending balance | 1,224 |  | 1,180 | 1,040
Other [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 2,988 |  | 1,672 |
Ending balance | 2,516 |  | 2,988 | 1,672
Total amortized intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 9,300 |  | 7,697 |
Ending balance | 8,787 |  | 9,300 | 7,697
Cost [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 158,667 |  | 156,247 | 110,627
Additions | 1,793 |  | 3,344 | 1,294
Acquisitions from business combinations (see Note 4) | 5,997 |  | 4,375 | 23,679
Changes in fair value of past acquisitions | 272 |  | (306) | 2,454
Internal development | 41 |  |  |
Disposals | 191 |  | 110 | 360
Effect of movements in exchange rates | (10,810) |  | (3,667) | 17,181
Changes in value on the recognition of inflation effects | 57 |  | (552) | 1,361
Venezuela deconsolidation effect |  |  | (884) |
Capitalization of borrowing costs | 0 |  |  | 11
Ending balance | 151,348 |  | 158,667 | 156,247
Cost [member] | Right to produce and distribute trademark products [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 91,902 |  | 85,338 | 66,392
Additions |  |  | 1,288 |
Acquisitions from business combinations (see Note 4) | 4,602 |  | 4,144 | 9,602
Changes in fair value of past acquisitions |  |  | 5,167 |
Effect of movements in exchange rates | (5,005) |  | (2,563) | 8,124
Changes in value on the recognition of inflation effects |  |  | (727) | 1,220
Venezuela deconsolidation effect |  |  | (745) |
Ending balance | 87,617 |  | 91,902 | 85,338
Cost [member] | Goodwill [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 43,449 |  | 51,857 | 33,850
Additions | 75 |  |  |
Acquisitions from business combinations (see Note 4) | 842 |  | 140 | 12,276
Changes in fair value of past acquisitions | 272 |  | (7,022) | (2,385)
Effect of movements in exchange rates | (4,108) |  | (1,526) | 8,116
Ending balance | 40,530 |  | 43,449 | 51,857
Cost [member] | Trademark rights [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 7,185 |  | 6,225 | 1,481
Additions |  |  |  | 3
Acquisitions from business combinations (see Note 4) | 170 |  | 5 | 239
Changes in fair value of past acquisitions |  |  | 836 | 4,315
Effect of movements in exchange rates | (656) |  | 119 | 187
Ending balance | 6,699 |  | 7,185 | 6,225
Cost [member] | Other indefinite lived intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 2,257 |  | 2,151 | 1,246
Additions | 71 |  | 6 |
Acquisitions from business combinations (see Note 4) |  |  |  | 1,067
Changes in fair value of past acquisitions |  |  | 9 | (554)
Disposals | 2 |  |  |
Effect of movements in exchange rates | (349) |  | 91 | 392
Ending balance | 1,977 |  | 2,257 | 2,151
Cost [member] | Total unamortized intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 144,793 |  | 145,571 | 102,969
Additions | 146 |  | 1,294 | 3
Acquisitions from business combinations (see Note 4) | 5,614 |  | 4,289 | 23,184
Changes in fair value of past acquisitions | 272 |  | (1,010) | 1,376
Disposals | 2 |  |  |
Effect of movements in exchange rates | (10,118) |  | (3,879) | 16,819
Changes in value on the recognition of inflation effects |  |  | (727) | 1,220
Venezuela deconsolidation effect |  |  | (745) |
Ending balance | 136,823 |  | 144,793 | 145,571
Cost [member] | Technology costs and management systems [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 7,103 |  | 6,124 | 4,890
Additions | 1,051 |  | 464 | 345
Acquisitions from business combinations (see Note 4) | 35 |  | 6 | 318
Changes in fair value of past acquisitions |  |  | (188) |
Transfer of completed development systems | 904 |  | 412 | 304
Disposals | 43 |  | 110 | 336
Effect of movements in exchange rates | (343) |  | 175 | 451
Changes in value on the recognition of inflation effects |  |  |  | 141
Capitalization of borrowing costs |  |  |  | 11
Ending balance | 8,707 |  | 7,103 | 6,124
Cost [member] | Systems in Development [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 1,291 |  | 798 | 683
Additions | 371 |  | 920 | 609
Acquisitions from business combinations (see Note 4) | 57 |  |  | 3
Transfer of completed development systems | (904) |  | (412) | (304)
Effect of movements in exchange rates | (38) |  | (15) | (193)
Ending balance | 777 |  | 1,291 | 798
Cost [member] | Alcohol licenses [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 1,637 |  | 1,416 | 1,225
Additions | 131 |  | 221 | 191
Ending balance | 1,768 |  | 1,637 | 1,416
Cost [member] | Other [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 3,843 |  | 2,338 | 860
Additions | 94 |  | 445 | 146
Acquisitions from business combinations (see Note 4) | 291 |  | 80 | 174
Changes in fair value of past acquisitions |  |  | 892 | 1,078
Internal development | 41 |  |  |
Disposals | 146 |  |  | 24
Effect of movements in exchange rates | (311) |  | 52 | 104
Changes in value on the recognition of inflation effects | 57 |  | 175 |
Venezuela deconsolidation effect |  |  | (139) |
Ending balance | 3,273 |  | 3,843 | 2,338
Cost [member] | Total amortized intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | 13,874 |  | 10,676 | 7,658
Additions | 1,647 |  | 2,050 | 1,291
Acquisitions from business combinations (see Note 4) | 383 |  | 86 | 495
Changes in fair value of past acquisitions |  |  | 704 | 1,078
Internal development | 41 |  |  |
Disposals | 189 |  | 110 | 360
Effect of movements in exchange rates | (692) |  | 212 | 362
Changes in value on the recognition of inflation effects | 57 |  | 175 | 141
Venezuela deconsolidation effect |  |  | (139) |
Capitalization of borrowing costs |  |  |  | 11
Ending balance | 14,525 |  | 13,874 | 10,676
Accumulated depreciation, amortisation and impairment [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | (4,574) |  | (2,979) | (2,286)
Amortization expense | (1,913) |  | (1,259) | (1,006)
Impairment losses |  |  | (110) |
Disposals | (191) |  |  | (349)
Effect of movements in exchange rates | 235 |  | (106) | (36)
Changes in value on the recognition of inflation effects | (52) |  |  |
Venezuela deconsolidation effect |  |  | (120) |
Venezuela impairment |  |  | 0 |
Ending balance | (5,738) |  | (4,574) | (2,979)
Accumulated depreciation, amortisation and impairment [member] | Right to produce and distribute trademark products [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
Accumulated depreciation, amortisation and impairment [member] | Goodwill [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
Accumulated depreciation, amortisation and impairment [member] | Trademark rights [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
Accumulated depreciation, amortisation and impairment [member] | Other indefinite lived intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
Accumulated depreciation, amortisation and impairment [member] | Total unamortized intangible assets [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
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 | (3,262) |  | (1,937) | (1,619)
Amortization expense | (1,453) |  | (961) | (630)
Impairment losses |  |  | (110) |
Disposals | (93) |  |  | (313)
Effect of movements in exchange rates | 236 |  | (254) | (1)
Changes in value on the recognition of inflation effects | (51) |  |  |
Venezuela impairment |  |  | 0 |
Ending balance | (4,437) |  | (3,262) | (1,937)
Accumulated depreciation, amortisation and impairment [member] | Systems in Development [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Venezuela impairment |  |  | 0 |
Accumulated depreciation, amortisation and impairment [member] | Alcohol licenses [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | (457) |  | (376) | (302)
Amortization expense | (87) |  | (81) | (74)
Venezuela impairment |  |  | 0 |
Ending balance | (544) |  | (457) | (376)
Accumulated depreciation, amortisation and impairment [member] | Other [member] |  |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |  |
Beginning balance | (855) |  | (666) | (365)
Amortization expense | (373) |  | (217) | (302)
Disposals | (98) |  |  | (36)
Effect of movements in exchange rates | (1) |  | 148 | (35)
Changes in value on the recognition of inflation effects | (1) |  |  |
Venezuela deconsolidation effect |  |  | (120) |
Venezuela impairment |  |  | 0 |
Ending balance | (757) |  | (855) | (666)
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 | (4,574) |  | (2,979) | (2,286)
Amortization expense | (1,913) |  | (1,259) | (1,006)
Impairment losses |  |  | (110) |
Disposals | (191) |  |  | (349)
Effect of movements in exchange rates | 235 |  | (106) | (36)
Changes in value on the recognition of inflation effects | (52) |  |  |
Venezuela deconsolidation effect |  |  | (120) |
Venezuela impairment |  |  | 0 |
Ending balance | (5,738) |  | $ (4,574) | $ (2,979)
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] | Convenience translation to U.S. dollars ($) - See Note 2.2.3

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