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Intangible Assets - Disclosure of Detailed Information About Key Assumptions by CGU for Impairment Test (Detail) | Dec. 31, 2020 | Dec. 31, 2019
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Mexico |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 7.40% | 7.30%
Post –tax WACC | 5.30% | 5.20%
Brazil |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 9.10% | 9.30%
Post –tax WACC | 6.00% | 5.60%
Colombia |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 11.00% | 8.90%
Post –tax WACC | 7.30% | 6.20%
Argentina |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 26.30% | 21.60%
Post –tax WACC | 20.40% | 14.80%
Guatemala |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 10.60% | 9.10%
Post –tax WACC | 8.30% | 7.10%
Costa Rica |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 15.30% | 13.80%
Post –tax WACC | 10.80% | 9.70%
Nicaragua |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 20.60% | 21.10%
Post –tax WACC | 13.90% | 12.40%
Panama |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 8.80% | 8.50%
Post –tax WACC | 6.80% | 6.60%
Uruguay |  |
Disclosure of detailed information about intangible assets [line items] |  |
Pre-tax WACC | 9.90% | 9.40%
Post –tax WACC | 7.10% | 6.80%
2021-2030 | Mexico |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 3.90% |
Expected volume growth rates | 2.00% |
2021-2030 | Brazil |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 3.00% |
Expected volume growth rates | 2.40% |
2021-2030 | Colombia |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 2.80% |
Expected volume growth rates | 4.10% |
2021-2030 | Argentina |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 30.10% |
Expected volume growth rates | 3.90% |
2021-2030 | Guatemala |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 3.10% |
Expected volume growth rates | 6.80% |
2021-2030 | Costa Rica |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 2.70% |
Expected volume growth rates | 4.30% |
2021-2030 | Nicaragua |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 3.70% |
Expected volume growth rates | 7.10% |
2021-2030 | Panama |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 1.50% |
Expected volume growth rates | 7.90% |
2021-2030 | Uruguay |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation | 7.80% |
Expected volume growth rates | 2.00% |
2020-2029 | Mexico |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 3.50%
Expected volume growth rates |  | 0.70%
2020-2029 | Brazil |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 3.60%
Expected volume growth rates |  | 2.00%
2020-2029 | Colombia |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 3.10%
Expected volume growth rates |  | 4.00%
2020-2029 | Argentina |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 39.20%
Expected volume growth rates |  | 3.70%
2020-2029 | Guatemala |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 4.00%
Expected volume growth rates |  | 8.50%
2020-2029 | Costa Rica |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 2.20%
Expected volume growth rates |  | 2.10%
2020-2029 | Nicaragua |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 4.40%
Expected volume growth rates |  | 3.00%
2020-2029 | Panama |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 2.00%
Expected volume growth rates |  | 5.40%
2020-2029 | Uruguay |  |
Disclosure of detailed information about intangible assets [line items] |  |
Expected annual long term inflation |  | 7.40%
Expected volume growth rates |  | 2.00%

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