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Other tax payable (Tables)
 12 Months Ended
Dec. 31, 2017
Disclosure Of Other Tax Payable [Abstract]  
Disclosure of detailed information about Other tax payable [Text Block]
(€ million)   December 31, 2017   December 31, 2016
Excise and customs duties     824       634  
Other taxes and duties     648       659  
      1,472       1,293