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INTANGIBLE ASSETS AND GOODWILL - Narrative (Details) - EUR (€) | 12 Months Ended |  |
--- | --- | --- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Goodwill | € 462,000,000 | € 478,000,000 | € 451,000,000
P&ARP |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Goodwill | 455,000,000 |  |
Carrying value | 1,500,000,000 |  |
Recoverable value | 2,000,000,000 |  |
Goodwill impairment | € 0 |  |
Cash flow rates | 40.00% |  |
P&ARP | Bottom of range |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Discount rate to estimate normative cash flows | 9.50% |  |
P&ARP | Top of range |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Long term growth rate used to estimate normative cash flow | 1.50% |  |
A&T |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Goodwill | € 5,000,000 |  |
AS&I |  |  |
Disclosure of reconciliation of changes in intangible assets and goodwill [line items] |  |  |
Goodwill | € 2,000,000 |  |

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- Definition The discount rate applied to cash flow projections for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 134 -Subparagraph d -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_134_d_v&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 134 -Subparagraph e -Clause v -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_134_e_v&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The growth rate used to extrapolate cash flow projections beyond the period covered by the most recent budgets/forecasts for a cash-generating unit (group of units). [Refer: Cash-generating units [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 134 -Subparagraph d -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_134_d_iv&doctype=Standard -URIDate 2023-03-23 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 36 -IssueDate 2023-01-01 -Paragraph 134 -Subparagraph e -Clause iv -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=36&code=ifrs-tx-2023-en-r&anchor=para_134_e_iv&doctype=Standard -URIDate 2023-03-23 + Details
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