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COMMITMENTS - Tangible and Intangible Asset Commitments (Details) - EUR (€)
€ in Millions
Dec. 31, 2021
Dec. 31, 2020
Disclosure of capital expenditures commitments [line items]    
Total tangible and intangible asset commitments € 65 € 49
Property, plant and equipment    
Disclosure of capital expenditures commitments [line items]    
Total tangible and intangible asset commitments 65 48
Computer Software    
Disclosure of capital expenditures commitments [line items]    
Total tangible and intangible asset commitments € 0 € 1