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Deconsolidation of Maxus Entities - Deconsolidation of Balance Sheet (Detail) - ARS ($) $ in Millions | Dec. 31, 2017 | Dec. 31, 2016 | Dec. 31, 2015
--- | --- | --- | ---
Deconsolidation [Line Items] |  |  |
Noncurrent assets | $ 383,420 | $ 333,913 | $ 286,480
Current assets | 122,298 | 87,226 | 76,973
Total assets | 505,718 | 421,139 | 363,453
Noncurrent liabilities | 250,451 | 220,012 | 163,201
Current liabilities | 102,734 | 82,466 | 79,791
Total liabilities | 353,185 | 302,478 | 242,992
Total liabilities and shareholders' equity | $ 505,718 | $ 421,139 | 363,453
Maxus Entities [Member] |  |  |
Deconsolidation [Line Items] |  |  |
Noncurrent assets |  |  | 732
Current assets |  |  | 416
Total assets |  |  | 1,148
Noncurrent liabilities |  |  | 3,966
Current liabilities |  |  | 669
Total liabilities |  |  | 4,635
Total liabilities and shareholders' equity |  |  | $ 1,148

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