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OPERATING SEGMENT INFORMATION - Segment Capital Expenditures (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of operating segments [line items] |  |  |
Capital expenditures | € (337) | € (273) | € (232)
P&ARP |  |  |
Disclosure of operating segments [line items] |  |  |
Capital expenditures | (168) | (127) | (94)
A&T |  |  |
Disclosure of operating segments [line items] |  |  |
Capital expenditures | (95) | (78) | (70)
AS&I |  |  |
Disclosure of operating segments [line items] |  |  |
Capital expenditures | (69) | (62) | (62)
H&C |  |  |
Disclosure of operating segments [line items] |  |  |
Capital expenditures | € (5) | € (6) | € (6)

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