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Deferred Income Taxes (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Deferred Income Tax |
(in millions of Euros) |  | At December 31, 2017 |  |  | At December 31, 2016 |
Deferred income tax assets |  |  | 164 |  |  |  | 252 |
Deferred income tax liabilities |  |  | (25 | ) |  |  | (30 | )
Net Deferred income tax assets |  |  | 139 |  |  |  | 222 |
Significant Components of Deferred Tax Assets and Liabilities | The following tables show the changes in net deferred income tax assets / (liabilities) for the years ended December 31, 2017 and 2016.
(in millions of Euros) |  | At January 1, 2017 |  |  | Recognized in |  |  | Effect of change in foreign exchange rates |  |  | Other |  |  | At December 31, 2017 |
|  |  |  |  | Profit or loss |  |  | OCI |  |  |  |  |  |  |  |  |  |
Long-term assets |  |  | (90 | ) |  |  | 5 |  |  |  | — |  |  |  | 9 |  |  |  | — |  |  |  | (76 | )
Inventories |  |  | 6 |  |  |  | (2 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 4 |
Pensions |  |  | 188 |  |  |  | (39 | ) |  |  | (5 | ) |  |  | (14 | ) |  |  | — |  |  |  | 130 |
Derivative valuation |  |  | 13 |  |  |  | (17 | ) |  |  | (15 | ) |  |  | (1 | ) |  |  | — |  |  |  | (20 | )
Tax losses carried forward |  |  | 79 |  |  |  | 3 |  |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | 78 |
Other(A) |  |  | 26 |  |  |  | (3 | ) |  |  | — |  |  |  | — |  |  |  | — |  |  |  | 23 |
Total deferred tax assets/(liabilities) |  |  | 222 |  |  |  | (54 | ) |  |  | (20 | ) |  |  | (9 | ) |  |  | — |  |  |  | 139 |
(A) | Mainly non-deductible provisions.
For the year ended December 31, 2017, net deferred income tax assets declined primarily due to the US income tax rate decrease with €16 million through Profit or loss and for €8 million through Other Comprehensive Income.
(in millions of Euros) |  | At January 1, 2016 |  |  | Recognized in |  |  | Effect of change in foreign exchange rates |  |  | Other |  |  | At December 31, 2016 |
|  |  |  |  | Profit or loss |  |  | OCI |  |  |  |  |  |  |  |  |  |
Long-term assets |  |  | (27 | ) |  |  | (59 | ) |  |  | — |  |  |  | (4 | ) |  |  | — |  |  |  | (90 | )
Inventories |  |  | 4 |  |  |  | 3 |  |  |  | — |  |  |  | — |  |  |  | (1 | ) |  |  | 6 |
Pensions |  |  | 193 |  |  |  | (11 | ) |  |  | 2 |  |  |  | 4 |  |  |  | — |  |  |  | 188 |
Derivative valuation |  |  | 27 |  |  |  | (21 | ) |  |  | 9 |  |  |  | — |  |  |  | (2 | ) |  |  | 13 |
Tax losses carried forward |  |  | 40 |  |  |  | 38 |  |  |  | — |  |  |  | 1 |  |  |  | — |  |  |  | 79 |
Other(A) |  |  | 23 |  |  |  | — |  |  |  | — |  |  |  | 1 |  |  |  | 2 |  |  |  | 26 |
Total deferred tax assets /(liabilities) |  |  | 260 |  |  |  | (50 | ) |  |  | 11 |  |  |  | 2 |  |  |  | (1 | ) |  |  | 222 |
(A) | Mainly non-deductible provisions.
Components of Non Recognized Deferred Tax Assets |
(in millions of Euros) |  | At December 31, 2017 |  |  | At December 31, 2016 |
Expiring in 2018 to 2021 |  |  | (22 | ) |  |  | (13 | )
Expiring in 2022 and after limited |  |  | (143 | ) |  |  | (132 | )
Unlimited |  |  | (18 | ) |  |  | (19 | )
Tax losses |  |  | (183 | ) |  |  | (164 | )
Long-term assets |  |  | (116 | ) |  |  | (193 | )
Pensions |  |  | (20 | ) |  |  | (25 | )
Other |  |  | (37 | ) |  |  | (46 | )
Deductible temporary differences |  |  | (173 | ) |  |  | (264 | )
Total |  |  | (356 | ) |  |  | (428 | )

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