XML 72 R65.htm IDEA: XBRL DOCUMENT v3.8.0.1
Current tax assets (Tables)
12 Months Ended
Dec. 31, 2017
Disclosure Of Current Tax Assets [Abstract]  
Disclosure of detailed information about current tax assets [text block]
(€ million)   December 31, 2017   December 31, 2016
Italian subsidiaries     99       134  
Subsidiaries outside Italy     92       249  
      191       383