Note 34 - Share of profit or loss of entities accounted for using the equity method (Details) - EUR (€)	6 Months Ended
Jun. 30, 2020	Jun. 30, 2019
Share of profit or loss of entities accounted for using the equity method
investments in entities accounted for using the equity method	€ (17,000,000)	€ (19,000,000)

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)]

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: http://www.xbrl.org/2003/role/disclosureRef
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Reference 3: http://www.xbrl.org/2003/role/disclosureRef
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