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Investments in Associates and Joint Ventures - Summary of Movements Which Affected the Value of Investments in associates and joint ventures (Detail) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2018	Dec. 31, 2017	Dec. 31, 2016
Investments In Associates And Joint Ventures [abstract]
Amount at the beginning of year	$ 6,045	$ 5,488	$ 4,371
Acquisitions and contributions	280	910	448
Income on investments in associates and joint ventures	4,839	1,428	588
Translation differences	3,180	662	601
Distributed dividends	(583)	(328)	(520)
Interest maintained in YPF EE	17,285	0	0
Adjustment for inflation	1,640	0	0
Reclassification of assets held for disposal	0	(2,117)	0
Other movements	0	2	0
Amount at the end of year	$ 32,686	$ 6,045	$ 5,488

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- Definition

The amount of dividends received.

+ References

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- Definition

The amount of investments in subsidiaries, joint ventures and associates in an entity's separate financial statements. [Refer: Associates [member]; Joint ventures [member]; Subsidiaries [member]; Investments in subsidiaries]

+ References

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- Definition

The entity's share of the profit (loss) of associates and joint ventures accounted for using the equity method. [Refer: Associates [member]; Investments accounted for using equity method; Joint ventures [member]; Profit (loss)]

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Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Acquisitions and contributions.

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Fair Value of Interest in investment.

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Inflation adjustment.

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Investments In Associates And Joint Ventures [abstract]

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Other movements.

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Reclassification of subsidiary assets held for disposal.

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Translation Differences On Investments

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