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Income Tax - Additional Information (Detail) - ARS ($) $ in Millions | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Estimated a tax loss carryforward | $ 57,267 |  |
Deferred income tax assets, net | 301 | $ 588 | $ 564
Deferred income tax liabilities, net | $ 91,125 | $ 37,645 | 42,465
Subsidiaries [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unused tax losses for which have not been recorded deferred tax asset |  |  | 1,138
Subsidiaries [member] | 2017 onwards [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unused tax losses for which have not been recorded deferred tax asset |  |  | 1,090
Subsidiaries [member] | Indeterminate Maturity [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Unused tax losses for which have not been recorded deferred tax asset |  |  | $ 48
Argentina [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Tax loss carryforwards expire | Expire within 5 years. |  |
Unused tax losses for which have not been recorded deferred tax asset | $ 21,575 |  |

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- Definition The amount of tax expense or income relating to changes in deferred tax liabilities and deferred tax assets, recognised in profit or loss. [Refer: Deferred tax assets; Deferred tax expense (income); Deferred tax liabilities] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 12 -IssueDate 2018-01-01 -Paragraph 81 -Subparagraph g -Clause ii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=12&date=2018-03-01&anchor=para_81_g_ii&doctype=Standard -URIDate 2018-03-16 + Details
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