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CURRENCY GAINS / (LOSSES) (Tables) | 12 Months Ended
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Dec. 31, 2021
Analysis of income and expense [abstract] |
Schedule of Currency Gains and Losses Included in Income from Operations |
|  |  |  | Year ended December 31,
(in millions of Euros) |  | Notes |  | 2021 |  | 2020 |  | 2019
Included in Revenue |  | 21 |  | (4) |  | (6) |  | (7)
Included in Cost of sales |  |  |  | 1 |  | (2) |  | 1
Included in Other gains and losses - net |  | 21 |  | 16 |  | (19) |  | 9
Total |  |  |  | 13 |  | (27) |  | 3
Realized exchange (losses) / gains on foreign currency derivatives - net |  | 21 |  | (1) |  | (11) |  | 1
Losses reclassified from OCI as a result of hedge accounting discontinuation |  | 21 |  | — |  | (6) |  | —
Unrealized gains / (losses) on foreign currency derivatives - net |  | 21 |  | 13 |  | (8) |  | 1
Exchange gains / (losses) from the remeasurement of monetary assets and liabilities - net |  |  |  | 1 |  | (2) |  | 1
Total |  |  |  | 13 |  | (27) |  | 3
Schedule of Foreign Currency Translation Reserve |
|  | At December 31,
(in millions of Euros) |  | 2021 |  | 2020
Foreign currency translation reserve at January 1 |  | (13) |  | 4
Effect of currency translation differences |  | 32 |  | (17)
Foreign currency translation reserve at December 31 |  | 19 |  | (13)

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