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Operating expenses - Disposals and Impairment of PP&E (Details) - ARS ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Dec. 31, 2016	Dec. 31, 2015
Operating expenses
Gain on disposal and impairment of PP&E	$ 21	$ 17	$ 31
Disposal and impairment of PP&E	(316)	(383)	(199)
Fixed services
Operating expenses
Impairment of PP&E	(5)	2	(116)
Decrease of PPE	(16)	(1)
Mobile Services
Operating expenses
Impairment of PP&E	(229)	(369)	$ (114)
Decrease of PPE	$ (66)	$ (15)

X

- Definition

Adjustments for impairment loss (reversal of impairment loss) on property, plant and equipment recognised in profit or loss to reconcile profit (loss) to net cash flow from (used in) operating activities. [Refer: Adjustments for impairment loss (reversal of impairment loss) recognised in profit or loss; Property, plant and equipment]

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- Definition

The gain on the disposal of property, plant and equipment. [Refer: Property, plant and equipment]

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Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes of the table.

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- Definition

The amount of gain on disposal, impairment and disposal of property, plant and equipment.

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- Definition

The amount of losses, other than losses on disposal and impairment, recognised in profit or loss for property, plant and equipment.

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