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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 |

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- Definition The disclosure of detailed information about current tax assets. + References No definition available. + Details
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