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Inventories - Summary of Inventories (Detail) - ARS ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018 | Dec. 31, 2017 | Dec. 31, 2016
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Disclosure of inventories [line items] |  |  |  |
Inventories | $ 80,479 | $ 53,324 | $ 27,149 | $ 21,808
Refined products [member] |  |  |  |
Disclosure of inventories [line items] |  |  |  |
Inventories | 50,563 | 33,583 | 16,260 |
Crude oil and natural gas [member] |  |  |  |
Disclosure of inventories [line items] |  |  |  |
Inventories | 24,756 | 14,571 | 8,474 |
Products in process [member] |  |  |  |
Disclosure of inventories [line items] |  |  |  |
Inventories | 2,259 | 1,177 | 640 |
Raw materials, packaging materials and others [member] |  |  |  |
Disclosure of inventories [line items] |  |  |  |
Inventories | $ 2,901 | $ 3,993 | $ 1,775 |

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- Definition The amount of current inventories. [Refer: Inventories] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 2 -IssueDate 2019-01-01 -Paragraph 36 -Subparagraph b -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=2&code=ifrs-tx-2019-en-r&anchor=para_36_b&doctype=Standard -URIDate 2019-03-27 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 54 -Subparagraph g -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_54_g&doctype=Standard -URIDate 2019-03-27 Reference 3: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2019-01-01 -Paragraph 68 -URI http://eifrs.ifrs.org/eifrs/xifrs-link?type=IAS&num=1&code=ifrs-tx-2019-en-r&anchor=para_68&doctype=Standard -URIDate 2019-03-27 + Details
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