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Income Tax - Summary of Breakdown of Deferred Tax (Detail) - ARS ($) $ in Millions | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax assets | $ 24,765 | $ 8,444 | $ 7,526
Total deferred tax liabilities | (115,589) | (45,501) | (49,427)
Total Net deferred tax | (90,824) | (37,057) | (41,901)
Provisions and Other Non Deductible Liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax assets | 2,920 | 1,861 | 3,607
Miscellaneous Deferred Tax Assets [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax assets | 270 | 99 | 82
Property, plant and equipment [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax liabilities | (113,821) | (43,931) | (45,579)
Tax Losses Carryforward and Other Tax Credits [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax assets | 21,575 | 6,484 | 3,837
Miscellaneous Deferred Tax Liabilities [member] |  |  |
Disclosure of temporary difference, unused tax losses and unused tax credits [line items] |  |  |
Total deferred tax liabilities | $ (1,768) | $ (1,570) | $ (3,848)

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