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Financial debt - Nucleo (Details) ₲ in Millions, $ in Millions	12 Months Ended
	Dec. 31, 2017 PYG (₲)	Dec. 31, 2017 ARS ($)	Dec. 31, 2016 ARS ($)
Financial Debt
Current financial debt		$ 3,194	$ 3,266
Non-current		9,041	$ 8,646
Nucleo | Bank loans - principal
Financial Debt
Principal amount | ₲	₲ 120,000
Current financial debt		182
Non-current		215
Nucleo | Principal Nominal Value 80,000
Financial Debt
Principal amount | ₲	₲ 80,000
Amortization term	1 year 10 months 24 days
Current financial debt		132
Non-current		132
Nucleo | Principal Nominal Value 40,000
Financial Debt
Principal amount | ₲	₲ 40,000
Amortization term	1 year 8 months 12 days
Current financial debt		50
Non-current		$ 83
Weighted average | Nucleo | Bank loans - principal
Financial Debt
Amortization term	2 years
Weighted average annual rate	8.83%	8.83%

X

- Definition

The interest rate on borrowings. [Refer: Borrowings]

+ References

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

- Definition

The amount of current borrowings and current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

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+ References

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- Definition

The non-current portion of non-current borrowings. [Refer: Borrowings]

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

The nominal or face amount of a financial instrument, used to calculate payments made on that instrument.

+ References

Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef
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- Definition

Period of time between issuance and maturity of debt instrument, in PnYnMnDTnHnMnS' format, for example, 'P1Y5M13D' represents the reported fact of one year, five months, and thirteen days.

+ References

No definition available.

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