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Significant accounting policies - Taxes payables (Details) - ARS ($) $ in Millions				2 Months Ended	12 Months Ended
	Jan. 01, 2024	Jan. 01, 2018	Nov. 14, 2017	Dec. 31, 2017	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Significant accounting policies
Applicable tax rate					34.30%	34.30%	34.50%
Argentina
Significant accounting policies
Applicable tax rate					35.00%	35.00%	35.00%
Average rates resulting from the turnover					5.40%	5.30%	5.20%
Tax rate for SU fund					1.00%
Personal assets tax receivable reversed					$ 8
Personal assets tax liability reversed					$ 8
Effective tax rate applicable for individuals					15.00%
Presume income equivalent of transfer price for non-residents					90.00%
Effective internal tax rate, mobile telephone services					4.16%
Effective internal tax rate, sale of mobile phones and other wireless networks that will decrease gradually until its complete phase out as of January 1, 2024	11.73%		20.48%
Effective internal tax rate, goods manufacture in Tierra del Fuego				0.00%
Percentage of employers' contributions					21.00%
Argentina | Tax Year 2018
Significant accounting policies
Applicable tax rate		30.00%
Effective internal tax rate, mobile telephone services		5.26%
Social security, non-taxable base		$ 2,400
Argentina | Tax Year 2019
Significant accounting policies
Applicable tax rate		30.00%
Argentina | Tax Year 2020
Significant accounting policies
Applicable tax rate		25.00%
Argentina | Changes in tax rates or tax laws enacted or announced
Significant accounting policies
Real estate (regarded as capital assets) revaluation tax percentage		8.00%
Real estate (regarded as inventories) revaluation tax percentage		15.00%
Shares, quotas and other participations in Argentine companies owned by resident individuals revaluation tax percentage		5.00%
All other assets (except inventories and cars, which may not be revaluated), revaluation tax percentage		10.00%
Argentina | Changes in tax rates or tax laws enacted or announced | Tax Year 2018
Significant accounting policies
Applicable tax rate		30.00%
Withholding tax rate on dividends		7.00%
Equalization tax rate percentage, repealed		35.00%
Turnover Tax, communications rate		5.00%
Turnover Tax, mobile telephone rate		7.00%
Argentina | Changes in tax rates or tax laws enacted or announced | Tax Year 2018 | Maximum
Significant accounting policies
Annual reduction in tax on deposits to and withdrawals from bank accounts		(20.00%)
Argentina | Changes in tax rates or tax laws enacted or announced | Tax Year 2019
Significant accounting policies
Applicable tax rate		30.00%
Stamp Tax rate percentage		0.75%
Argentina | Changes in tax rates or tax laws enacted or announced | Tax Year 2020
Significant accounting policies
Applicable tax rate		25.00%
Withholding tax rate on dividends		13.00%
Argentina | Changes in tax rates or tax laws enacted or announced | Tax Year 2022
Significant accounting policies
Percentage of employers' contributions		19.50%
Social security, non-taxable base		$ 12,000
Turnover Tax, communications rate		3.00%
Turnover Tax, mobile telephone rate		5.00%
Paraguay
Significant accounting policies
Applicable tax rate					10.00%	10.00%	10.00%
Additional tax rate (as a percent)					5.00%	5.00%	5.00%
Effective tax rate					15.00%	15.00%	15.00%
United States of America
Significant accounting policies
Applicable tax rate					39.50%	39.50%	39.50%
Effective tax rate					39.50%	39.50%	39.50%
United States of America | Changes in tax rates or tax laws enacted or announced
Significant accounting policies
Applicable tax rate		21.00%
Effective tax rate		26.50%

X

- Definition

The applicable income tax rate.

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

The tax expense (income) divided by the accounting profit. [Refer: Accounting profit]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition

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+ References

No definition available.

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- Definition

The average percentage of turnover tax charge over the total revenues.

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No definition available.

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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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- Definition

The effective internal tax rate applicable to mobile telephone services.

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No definition available.

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- Definition

Effective internal tax rate rate levied on goods manufactured in Tierra del Fuego.

+ References

No definition available.

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- Definition

The effective internal tax rate applicable to the sale of imported mobile phones and other wireless networks.

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No definition available.

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- Definition

The percentage of effective tax rate applicable for individuals.

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No definition available.

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- Definition

The withholding tax rate applicable to to dividends distributed in excess of the accumulated taxable income.

+ References

No definition available.

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- Definition

The amount of payable for personal assets tax reversed in the current period.

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No definition available.

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- Definition

The amount of receivable for personal assets tax reversed in the current period.

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No definition available.

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- Definition

The percentage of transfer price presumed as income equivalent in cases of non-residents.

+ References

No definition available.

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- Definition

One-time special tax applied to the revaluation of investments in Argentine companies owned by resident individuals that generate taxable income.

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No definition available.

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No definition available.

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- Definition

One-time special tax applied to the revaluation of real estate capital assets that generate taxable income.

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No definition available.

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- Definition

One-time special tax applied to the revaluation of real estate assets regarded as inventories that generate taxable income.

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No definition available.

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- Definition

Non-taxable base for calculating employers' contributions to social security.

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- Definition

Percentage of employers' contributions to social security to be paid by large companies.

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- Definition

Stamp tax rate percentage.

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- Definition

Annual reduction in income tax levied on deposits to and withdrawals from bank accounts.

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- Definition

The percentage of tax for Universal Service Fiduciary Fund.

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- Definition

Turnover tax rate applicable to communications.

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No definition available.

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- Definition

Turnover Tax rate applicable to mobile telephones.

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No definition available.

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- Definition

The percentage of withholding tax on dividends distributed to non-residents.

+ References

No definition available.

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