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Nota 17 - Investment in Joint Ventures and Associates - Most Significant Investment in Joint Ventures and Associates (Details) - ARS ($) | 12 Months Ended
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Dec. 31, 2018 | Dec. 31, 2017
PSA Finance Arg Cia Financiera SA Member |  |
Most Significant Investment in Joint Ventures and Associates LineItems |  |
Assets of Joint Ventures and Associates | $ 4,109,138,000 | $ 6,710,630,000
Liabilities of Joint Ventures and Associates | 3,232,242,000 | 5,624,032,000
Profit of Joint Ventures and Associates | 149,307,000 | 303,796,000
Equity of Joint Ventures and Associates | $ 876,896,000 | $ 1,086,598,000
Ownership Interest | 50.00% | 50.00%
Rombo Cia Financiera SA Member |  |
Most Significant Investment in Joint Ventures and Associates LineItems |  |
Assets of Joint Ventures and Associates | $ 9,020,095,000 | $ 12,049,566,000
Liabilities of Joint Ventures and Associates | 7,748,790,000 | 10,478,936,000
Profit of Joint Ventures and Associates | 66,967,000 | 309,452,000
Equity of Joint Ventures and Associates | $ 1,271,305,000 | $ 1,570,630,000
Ownership Interest | 40.00% | 40.00%
Volkswagen Financial Services Cia Financiera SA Member |  |
Most Significant Investment in Joint Ventures and Associates LineItems |  |
Assets of Joint Ventures and Associates | $ 8,046,175,000 |
Liabilities of Joint Ventures and Associates | 6,792,061,000 |
Profit of Joint Ventures and Associates | 246,576,000 |
Equity of Joint Ventures and Associates | $ 1,254,114,000 |
Ownership Interest | 51.00% |

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- Definition The proportion of ownership interest in a subsidiary attributable to the entity. [Refer: Subsidiaries [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 17 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_17_b_iii&doctype=Standard -URIDate 2018-03-16 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 27 -IssueDate 2018-01-01 -Paragraph 16 -Subparagraph b -Clause iii -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IAS&num=27&date=2018-03-01&anchor=para_16_b_iii&doctype=Standard -URIDate 2018-03-16 Reference 3: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 12 -IssueDate 2018-01-01 -Paragraph 19B -Subparagraph c -URI http://eifrs.ifrs.org/eifrs/XBRL?type=IFRS&num=12&date=2018-03-01&anchor=para_19B_c&doctype=Standard -URIDate 2018-03-16 + Details
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