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Acquisitions and Dispositions - Summary of Table Resumes Consideration and Fair Value of the Acquired Assets and the Liabilities Assumed on the Acquisiton (Detail) - ARS ($) $ in Millions | Dec. 31, 2019 | Dec. 31, 2018
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CTEB [member] |  |
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items] |  |
Property, plant and equipment | $ 20,330 |
Inventories | 341 |
Financial assets at fair value | 682 |
VRD | (9,760) |
Total net identifiable assets / consideration | $ 11,593 |
Oil Combustibles SA [member] |  |
Disclosure of business acquisitions by acquisition assets acquired and liabilities assumed [line items] |  |
Property, plant and equipment |  | $ 2,327
Inventories |  | 445
Provisions |  | (465)
Total net identifiable assets / consideration |  | $ 2,307

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