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Inventories - Summary (Details) - EUR (€)
€ in Millions
Dec. 31, 2019
Dec. 31, 2018
Inventories [Abstract]    
Audiovisual rights € 1,189 € 795
Mobile terminals and other equipments 830 872
Other inventories 33 88
Inventories impairment provision (53) (63)
Inventories € 1,999 € 1,692