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Provisions - Summary of Changes in Group's Provisions (Detail) - ARS ($) $ in Millions | 12 Months Ended
--- | ---
Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
Disclosure of provisions [line items] |  |  |
Net exchange and translation differences | $ 81,869 | $ 16,025 | $ 15,287
Result from net monetary position | 1,594 |  |
Reclassifications and other movements |  | (3,203) |
Non current [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 54,734 | 47,358 | 39,623
Increases charged to expenses | 10,126 | 6,823 | 5,661
Decreases charged to income | (14,621) | (1,568) | (169)
Amounts incurred due to payments/utilization | (76) | (25) | (39)
Net exchange and translation differences | 50,995 | 8,357 | 7,651
Deconsolidation of subsidiaries |  |  | (4,436)
Increases due to business combination | 465 |  |
Result from net monetary position | (204) |  |
Reclassifications and other movements | (18,031) | (6,211) | (933)
Provisions ending balance | 83,388 | 54,734 | 47,358
Non current [member] | Provision for lawsuits and contingencies [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 11,667 | 9,205 | 10,375
Increases charged to expenses | 3,320 | 2,394 | 1,579
Decreases charged to income | (371) | (1,570) | (158)
Amounts incurred due to payments/utilization | (76) | (25) | 9
Net exchange and translation differences | 6,826 | 1,483 | 1,221
Deconsolidation of subsidiaries |  |  | (2,213)
Result from net monetary position | (204) |  |
Reclassifications and other movements | 73 | 180 | (1,608)
Provisions ending balance | 21,235 | 11,667 | 9,205
Non current [member] | Provision for environmental liabilities [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 1,196 | 530 | 1,620
Increases charged to expenses | 3,021 | 1,483 | 962
Decreases charged to income |  | (6) |
Net exchange and translation differences | 495 |  | 159
Deconsolidation of subsidiaries |  |  | (1,351)
Increases due to business combination | 465 |  |
Reclassifications and other movements | (1,457) | (811) | (860)
Provisions ending balance | 3,720 | 1,196 | 530
Non current [member] | Provision for Hydrocarbon Wells Abandonment Obligations [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 41,871 | 37,623 | 27,380
Increases charged to expenses | 3,785 | 2,946 | 3,023
Decreases charged to income | (14,250) | 8 | (10)
Amounts incurred due to payments/utilization |  |  | (48)
Net exchange and translation differences | 43,674 | 6,874 | 6,245
Deconsolidation of subsidiaries |  |  | (515)
Reclassifications and other movements | (16,647) | (5,580) | 1,548
Provisions ending balance | 58,433 | 41,871 | 37,623
Non current [member] | Provision for pensions [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance |  |  | 248
Increases charged to expenses |  |  | 97
Decreases charged to income |  |  | (1)
Net exchange and translation differences |  |  | 26
Deconsolidation of subsidiaries |  |  | (357)
Reclassifications and other movements |  |  | (13)
Current [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 2,442 | 1,994 | 2,009
Increases charged to expenses | 357 | 83 | 367
Decreases charged to income | (266) | (408) | (335)
Amounts incurred due to payments/utilization | (2,576) | (1,363) | (1,705)
Net exchange and translation differences | 1,309 | 196 | 156
Deconsolidation of subsidiaries |  |  | (652)
Result from net monetary position | 66 |  |
Reclassifications and other movements | 3,197 | 1,940 | 2,154
Provisions ending balance | 4,529 | 2,442 | 1,994
Current [member] | Provision for lawsuits and contingencies [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 688 | 569 | 149
Increases charged to expenses | 357 | 83 | 335
Decreases charged to income | (266) | (410) | (258)
Amounts incurred due to payments/utilization | (129) | (187) | (239)
Net exchange and translation differences | 471 | 75 | 7
Deconsolidation of subsidiaries |  |  | (11)
Result from net monetary position | 66 |  |
Reclassifications and other movements | (64) | 558 | 586
Provisions ending balance | 1,123 | 688 | 569
Current [member] | Provision for environmental liabilities [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 1,018 | 868 | 1,400
Increases charged to expenses |  |  | 32
Amounts incurred due to payments/utilization | (933) | (661) | (869)
Net exchange and translation differences | 80 |  | 52
Deconsolidation of subsidiaries |  |  | (607)
Reclassifications and other movements | 1,457 | 811 | 860
Provisions ending balance | 1,622 | 1,018 | 868
Current [member] | Provision for Hydrocarbon Wells Abandonment Obligations [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance | 736 | 557 | 429
Decreases charged to income |  | 2 | (77)
Amounts incurred due to payments/utilization | (1,514) | (515) | (584)
Net exchange and translation differences | 758 | 121 | 94
Reclassifications and other movements | 1,804 | 571 | 695
Provisions ending balance | $ 1,784 | $ 736 | 557
Current [member] | Provision for pensions [member] |  |  |
Disclosure of provisions [line items] |  |  |
Provisions beginning balance |  |  | 31
Amounts incurred due to payments/utilization |  |  | (13)
Net exchange and translation differences |  |  | 3
Deconsolidation of subsidiaries |  |  | (34)
Reclassifications and other movements |  |  | $ 13

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- Definition The increase in other provisions resulting from acquisitions through business combinations. [Refer: Business combinations [member]; Other provisions] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 37 -IssueDate 2018-01-01 -Paragraph 84 -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=37&date=2018-03-01&anchor=para_84&doctype=Standard -URIDate 2018-03-16 + Details
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- Definition The gains (losses) recognised in other comprehensive income on exchange differences on the translation of financial statements of foreign operations, net of tax. [Refer: Other comprehensive income] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2018-01-01 -Paragraph 91 -Subparagraph a -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=1&date=2018-03-01&anchor=para_91_a&doctype=Standard -URIDate 2018-03-16 + Details
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