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INVENTORIES (Tables) | 6 Months Ended
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Jun. 30, 2020
Subclassifications of assets, liabilities and equities [abstract] |
Schedule of Inventories |
(in millions of Euros) |  | At June 30, 2020 |  | At December 31, 2019
Finished goods |  | 194 |  |  | 203 |
Work in progress |  | 303 |  |  | 321 |
Raw materials |  | 99 |  |  | 106 |
Stores and supplies |  | 77 |  |  | 74 |
Inventories write-down |  | (38 | ) |  | (34 | )
Total inventories |  | 635 |  |  | 670 |

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