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CURRENCY GAINS / (LOSSES) (Tables) | 6 Months Ended
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Jun. 30, 2020
Analysis of income and expense [abstract] |
Schedule of Currency Gains and Losses Included in Income from Operations | Currency gains and losses, which are included in Income from operations, are as follows:
(in millions of Euros) |  | Notes |  | Three months ended June 30, 2020 |  | Three months ended June 30, 2019 |  | Six months ended June 30, 2020 |  | Six months ended June 30, 2019
Included in Revenue |  | 18 |  | (2 | ) |  | (1 | ) |  | (5 | ) |  | (2 | )
Included in Cost of sales |  |  |  | 1 |  |  | — |  |  | 1 |  |  | — |
Included in Other gains / (losses) - net |  |  |  | (5 | ) |  | (1 | ) |  | (6 | ) |  | 4 |
Total |  |  |  | (6 | ) |  | (2 | ) |  | (10 | ) |  | 2 |
Realized exchange (losses) / gains on foreign currency derivatives - net |  | 18 |  | (3 | ) |  | — |  |  | (3 | ) |  | 1 |
Losses reclassified from OCI as a result of hedge accounting discontinuation |  | 18 |  | (5 | ) |  | — |  |  | (5 | ) |  | — |
Unrealized (losses) / gains on foreign currency derivatives - net |  | 18 |  | — |  |  | (1 | ) |  | (2 | ) |  | 1 |
Exchange gains / (losses) from the remeasurement of monetary assets and liabilities - net |  |  |  | 2 |  |  | (1 | ) |  | — |  |  | — |
Total |  |  |  | (6 | ) |  | (2 | ) |  | (10 | ) |  | 2 |

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