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Operating expenses - Advertising (Details) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating expenses
Media advertising	$ (769)	$ (527)	$ (524)
Fairs and exhibitions	(264)	(176)	(137)
Other advertising costs	(185)	(171)	(153)
Total advertising	$ (1,218)	$ (874)	$ (814)

X

- Definition

The amount of expense arising from advertising.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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+ Details

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X

- Definition

The amount of advertising expense arising from fairs and exhibitions.

+ References

No definition available.

+ Details

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X

- Definition

The amount of expense arising from media advertising.

+ References

No definition available.

+ Details

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X

- Definition

The amount of expense arising from other advertising.

+ References

No definition available.

+ Details

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X

- References

No definition available.

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