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INTANGIBLE ASSETS - Accumulated Amortization (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Intangible assets |  |
Value, at the beginning of the year | $ 112,388 |
Value, at the end of the year | 104,026 | $ 112,388
Intangible assets other than goodwill |  |
Intangible assets | 104,026 | 112,388
Accumulated depreciation and amortization |  |
Intangible assets |  |
Value, at the beginning of the year | (21,022) | (12,183)
Amortization | (10,637) | (11,257)
Currency translation adjustments | 20 | (63)
Decreases | 1,559 | 2,481
Value, at the end of the year | (30,080) | (21,022)
Intangible assets other than goodwill |  |
Intangible assets | (30,080) | (21,022)
Accumulated depreciation and amortization | 3G/4G licenses |  |
Intangible assets |  |
Value, at the beginning of the year | (5,838) | (2,655)
Amortization | (3,183) | (3,183)
Value, at the end of the year | (9,021) | (5,838)
Intangible assets other than goodwill |  |
Intangible assets | (9,021) | (5,838)
Accumulated depreciation and amortization | Nucleo's licenses |  |
Intangible assets |  |
Value, at the beginning of the year | (380) | (154)
Amortization | (175) | (188)
Currency translation adjustments | 6 | (38)
Value, at the end of the year | (549) | (380)
Intangible assets other than goodwill |  |
Intangible assets | (549) | (380)
Accumulated depreciation and amortization | Customer relationships |  |
Intangible assets |  |
Value, at the beginning of the year | (9,510) | (6,437)
Amortization | (4,676) | (5,467)
Currency translation adjustments | 4 | (22)
Decreases | 21 | 2,416
Value, at the end of the year | (14,161) | (9,510)
Intangible assets other than goodwill |  |
Intangible assets | (14,161) | (9,510)
Accumulated depreciation and amortization | Brands |  |
Intangible assets |  |
Value, at the beginning of the year | (207) | (196)
Amortization | (9) | (11)
Value, at the end of the year | (216) | (207)
Intangible assets other than goodwill |  |
Intangible assets | (216) | (207)
Accumulated depreciation and amortization | Incremental Cost from the acquisition of contracts |  |
Intangible assets |  |
Value, at the beginning of the year | (2,879) | (822)
Amortization | (2,217) | (2,057)
Currency translation adjustments | 3 |
Decreases | 1,538 |
Value, at the end of the year | (3,555) | (2,879)
Intangible assets other than goodwill |  |
Intangible assets | (3,555) | (2,879)
Accumulated depreciation and amortization | Other |  |
Intangible assets |  |
Value, at the beginning of the year | (2,208) | (1,919)
Amortization | (377) | (351)
Currency translation adjustments | 7 | (3)
Decreases |  | 65
Value, at the end of the year | (2,578) | (2,208)
Intangible assets other than goodwill |  |
Intangible assets | (2,578) | (2,208)
Net carrying value before impairment |  |
Intangible assets |  |
Value, at the beginning of the year | 118,705 |
Value, at the end of the year | 110,262 | 118,705
Intangible assets other than goodwill |  |
Intangible assets | 110,262 | 118,705
Net carrying value before impairment | 3G/4G licenses |  |
Intangible assets |  |
Value, at the beginning of the year | 40,726 |
Value, at the end of the year | 37,543 | 40,726
Intangible assets other than goodwill |  |
Intangible assets | 37,543 | 40,726
Net carrying value before impairment | PCS license (Argentina) |  |
Intangible assets |  |
Value, at the beginning of the year | 22,070 |
Value, at the end of the year | 22,070 | 22,070
Intangible assets other than goodwill |  |
Intangible assets | 22,070 | 22,070
Net carrying value before impairment | Nucleo's licenses |  |
Intangible assets |  |
Value, at the beginning of the year | 5,033 |
Value, at the end of the year | 4,786 | 5,033
Intangible assets other than goodwill |  |
Intangible assets | 4,786 | 5,033
Net carrying value before impairment | Customer relationships |  |
Intangible assets |  |
Value, at the beginning of the year | 19,987 |
Value, at the end of the year | 15,295 | 19,987
Intangible assets other than goodwill |  |
Intangible assets | 15,295 | 19,987
Net carrying value before impairment | Brands |  |
Intangible assets |  |
Value, at the beginning of the year | 27,604 |
Value, at the end of the year | 27,595 | 27,604
Intangible assets other than goodwill |  |
Intangible assets | 27,595 | 27,604
Net carrying value before impairment | Incremental Cost from the acquisition of contracts |  |
Intangible assets |  |
Value, at the beginning of the year | 2,142 |
Value, at the end of the year | 1,677 | 2,142
Intangible assets other than goodwill |  |
Intangible assets | 1,677 | 2,142
Net carrying value before impairment | Other |  |
Intangible assets |  |
Value, at the beginning of the year | 1,143 |
Value, at the end of the year | 1,296 | 1,143
Intangible assets other than goodwill |  |
Intangible assets | $ 1,296 | $ 1,143

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