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INTANGIBLE ASSETS AND GOODWILL (Tables)

12 Months Ended

Dec. 31, 2020

Intangible assets and goodwill [abstract]

Schedule of Changes in Intangible Assets and Goodwill


(in millions of Euros)															Technology						Computer Software						Customer relationships						Work in Progress						Other						Total Intangible Assets						Goodwill
Net balance at January 1, 2020															21						19						14						14						2						70						455

Additions															—						—						—						4						—						4						—

Amortization expense															(1)						(8)						(1)						—						—						(10)						—
Impairment															—						(1)						—						—						—						(1)						—
Transfer															—						4						—						(4)						—						—						—
Effect of changes in foreign exchange rates															(2)						1						—						(1)						—						(2)						(38)
Net balance at December 31, 2020															18						15						13						13						2						61						417

Cost															79						76						37						14						2						208						417


Less accumulated depreciation and impairment															(61)						(61)						(24)						(1)						—						(147)						—
Net balance at December 31, 2020															18						15						13						13						2						61						417


(in millions of Euros)						Notes						Technology						Computer Software						Customer relationships						Work in Progress						Other						Total Intangible Assets						Goodwill
Net balance at January 1, 2019												22						18						15						13						2						70						422
Intangible assets acquired through business combination						33						—						—						—						—						—						—						24
Additions												—						1						—						8						—						9						—

Amortization expense												(1)						(8)						(1)						—						—						(10)						—

Transfer												—						7						—						(7)						—						—						—
Effect of changes in foreign exchange rates												—						1						—						—						—						1						9
Net balance at December 31, 2019												21						19						14						14						2						70						455

Cost												87						73						39						16						2						217						455


Less accumulated depreciation and impairment												(66)						(54)						(25)						(2)						—						(147)						—
Net balance at December 31, 2019												21						19						14						14						2						70						455