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PROPERTY, PLANT AND EQUIPMENT - Movements for materials and PP&E (Details) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2020 | Dec. 31, 2019
Movements in impairment of materials and PP&E |  |
Property, plant and equipment at beginning of year | $ 334,903 |
Property, plant and equipment at end of year | 320,863 | $ 334,903
Materials | Allowance for obsolescence and impairment of materials |  |
Movements in impairment of materials and PP&E |  |
Property, plant and equipment at beginning of year | (2,049) | (753)
Additions | (562) | (1,296)
Currency translation adjustments | 7 |
Property, plant and equipment at end of year | (2,604) | (2,049)
Materials | Allowance for obsolescence of inventories |  |
Movements in impairment of materials and PP&E |  |
Property, plant and equipment at beginning of year | (2,049) |
Property, plant and equipment at end of year | (2,604) | (2,049)
PP&E | Allowance for obsolescence of inventories |  |
Movements in impairment of materials and PP&E |  |
Property, plant and equipment at beginning of year | (1,092) | (697)
Additions | (901) | (395)
Uses | 1,181 |
Property, plant and equipment at end of year | $ (812) | $ (1,092)

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- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The increase (decrease) in property, plant and equipment resulting from net exchange differences arising on the translation of the financial statements from the functional currency into a different presentation currency, including the translation of a foreign operation into the presentation currency of the reporting entity. [Refer: Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -Clause viii -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e_viii&doctype=Standard -URIDate 2020-01-01 + Details
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- Definition The amount of tangible assets that: (a) are held for use in the production or supply of goods or services, for rental to others, or for administrative purposes; and (b) are expected to be used during more than one period. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2020-01-01 -Paragraph 73 -Subparagraph e -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=16&code=ifrs-tx-2020-en-r&anchor=para_73_e&doctype=Standard -URIDate 2020-01-01 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2020-01-01 -Paragraph 54 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2020-en-r&anchor=para_54_a&doctype=Standard -URIDate 2020-01-01 + Details
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