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INTANGIBLE ASSETS AND GOODWILL (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2021 | Dec. 31, 2020
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | € 61 | € 70
Additions | 4 | 4
Amortization expense | (14) | (10)
Impairment |  | (1)
Transfer | 4 | 0
Effect of changes in foreign exchange rates | 3 | (2)
Intangible assets (excluding goodwill), ending balance | 58 | 61
Changes in goodwill [abstract] |  |
Goodwill, beginning balance | 417 | 455
Effect of changes in foreign exchange rates | 34 | (38)
Goodwill, ending balance | 451 | 417
Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 208 |
Intangible assets (excluding goodwill), ending balance | 224 | 208
Changes in goodwill [abstract] |  |
Goodwill, beginning balance | 417 |
Goodwill, ending balance | 451 | 417
Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | (147) |
Intangible assets (excluding goodwill), ending balance | (166) | (147)
Technology |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 18 | 21
Additions | 0 | 0
Amortization expense | (1) | (1)
Impairment |  | 0
Transfer | 0 | 0
Effect of changes in foreign exchange rates | 1 | (2)
Intangible assets (excluding goodwill), ending balance | 18 | 18
Technology | Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 79 |
Intangible assets (excluding goodwill), ending balance | 86 | 79
Technology | Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | (61) |
Intangible assets (excluding goodwill), ending balance | (68) | (61)
Computer Software |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 15 | 19
Additions | 0 | 0
Amortization expense | (12) | (8)
Impairment |  | (1)
Transfer | 17 | 4
Effect of changes in foreign exchange rates | 1 | 1
Intangible assets (excluding goodwill), ending balance | 21 | 15
Computer Software | Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 76 |
Intangible assets (excluding goodwill), ending balance | 91 | 76
Computer Software | Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | (61) |
Intangible assets (excluding goodwill), ending balance | (70) | (61)
Customer relationships |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 13 | 14
Additions | 0 | 0
Amortization expense | (1) | (1)
Impairment |  | 0
Transfer | 0 | 0
Effect of changes in foreign exchange rates | 1 | 0
Intangible assets (excluding goodwill), ending balance | 13 | 13
Customer relationships | Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 37 |
Intangible assets (excluding goodwill), ending balance | 40 | 37
Customer relationships | Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | (24) |
Intangible assets (excluding goodwill), ending balance | (27) | (24)
Work in Progress |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 13 | 14
Additions | 4 | 4
Amortization expense | 0 | 0
Impairment |  | 0
Transfer | (15) | (4)
Effect of changes in foreign exchange rates | 0 | (1)
Intangible assets (excluding goodwill), ending balance | 2 | 13
Work in Progress | Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 14 |
Intangible assets (excluding goodwill), ending balance | 3 | 14
Work in Progress | Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | (1) |
Intangible assets (excluding goodwill), ending balance | (1) | (1)
Other |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 2 | 2
Additions | 0 | 0
Amortization expense | 0 | 0
Impairment |  | 0
Transfer | 2 | 0
Effect of changes in foreign exchange rates | 0 | 0
Intangible assets (excluding goodwill), ending balance | 4 | 2
Other | Cost |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 2 |
Intangible assets (excluding goodwill), ending balance | 4 | 2
Other | Less accumulated depreciation and impairment |  |
Changes in intangible assets other than goodwill [abstract] |  |
Intangible assets (excluding goodwill), beginning balance | 0 |
Intangible assets (excluding goodwill), ending balance | € 0 | € 0

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