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v3.21.1

Intangible Assets - Summary of Changes in Intangible Assets (Detail) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019 | Dec. 31, 2018
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | $ 37,608 | $ 20,402 | $ 9,976
Ending balance | 41,245 | 37,608 | 20,402
Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 92,894 | 53,331 | 25,119
Increases | 2,634 | 6,147 | 2,344
Translation effect | 36,509 | 32,511 | 25,594
Adjustment for inflation | 1,070 | 833 | 591
Decreases and reclassifications | (10,144) | 72 | (317)
Ending balance | 122,963 | 92,894 | 53,331
Accumulated amortization [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 55,286 | 32,929 | 15,143
Increases | 3,428 | 2,374 | 1,749
Translation effect | 22,753 | 19,807 | 15,983
Adjustment for inflation | 251 | 199 | 58
Decreases and reclassifications |  | (23) | (4)
Ending balance | 81,718 | 55,286 | 32,929
Service concession [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 17,646 | 11,592 | 5,644
Ending balance | 22,853 | 17,646 | 11,592
Service concession [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 51,936 | 31,702 | 14,824
Increases | 1,049 | 1,271 | 1,303
Translation effect | 21,213 | 18,969 | 15,544
Decreases and reclassifications | (1) | (6) | 31
Ending balance | 74,197 | 51,936 | 31,702
Service concession [member] | Accumulated amortization [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 34,290 | 20,110 | 9,180
Increases | 2,659 | 1,848 | 1,190
Translation effect | 14,395 | 12,332 | 9,740
Ending balance | 51,344 | 34,290 | 20,110
Exploration rights [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 16,655 | 6,907 | 3,465
Ending balance | 13,436 | 16,655 | 6,907
Exploration rights [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 16,655 | 6,907 | 3,465
Increases | 715 | 4,171 | 276
Translation effect | 6,528 | 5,680 | 3,414
Decreases and reclassifications | (10,462) | (103) | (248)
Ending balance | 13,436 | 16,655 | 6,907
Other intangibles [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 3,307 | 1,903 | 867
Ending balance | 4,956 | 3,307 | 1,903
Other intangibles [member] | Cost [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 24,303 | 14,722 | 6,830
Increases | 870 | 705 | 765
Translation effect | 8,768 | 7,862 | 6,636
Adjustment for inflation | 1,070 | 833 | 591
Decreases and reclassifications | 319 | 181 | (100)
Ending balance | 35,330 | 24,303 | 14,722
Other intangibles [member] | Accumulated amortization [member] |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Beginning balance | 20,996 | 12,819 | 5,963
Increases | 769 | 526 | 559
Translation effect | 8,358 | 7,475 | 6,243
Adjustment for inflation | 251 | 199 | 58
Decreases and reclassifications |  | (23) | (4)
Ending balance | $ 30,374 | $ 20,996 | $ 12,819

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