GOODWILL (Details) - EUR (€) € in Thousands	Dec. 31, 2019	Dec. 31, 2018	Dec. 31, 2017
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Goodwill	€ 785,182	€ 785,182
Specific medium/ long-term growth rate (percent)	2.00%	2.00%	2.00%
Weighted average cost of capital \| Discounted cash flow
Disclosure of significant unobservable inputs used in fair value measurement of assets [line items]
Base WACC (percent)	0.068	0.070	0.070

The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]]

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The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Business combinations [member]]

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