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GOODWILL - Movements in goodwill (Details) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2019	Dec. 31, 2018
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill at beginning of period	$ 185,295
Goodwill at end of period	185,141	$ 185,295
Argentina
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill at beginning of period	184,105	48,617
Additions by merger		135,488
Goodwill at end of period	184,105	184,105
Abroad business
Disclosure of reconciliation of changes in goodwill [line items]
Goodwill at beginning of period	1,190	1,048
Currency translation adjustments	(154)	142
Goodwill at end of period	$ 1,036	$ 1,190

X

- Definition

The increase in intangible assets and goodwill resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Intangible assets and goodwill]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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The increase (decrease) in intangible assets and goodwill resulting from the net exchange differences arising when the financial statements are translated 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: Intangible assets and goodwill]

+ References

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