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PENSION AND OTHER POST-EMPLOYMENT BENEFIT OBLIGATIONS - Amounts Recognized in the Consolidated Statement of Financial Position (Details) - EUR (€) € in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Disclosure of net defined benefit liability (asset) [line items] |  |
Present value of funded obligation | € 653 | € 614
Fair value of plan assets | (488) | (461)
Deficit of funded plans | 165 | 153
Present value of unfunded obligation | 246 | 250
Net liability / (asset) arising from defined benefit obligation | 411 | 403
Pension Benefits |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Present value of funded obligation | 653 | 614
Fair value of plan assets | (488) | (461)
Deficit of funded plans | 165 | 153
Present value of unfunded obligation | 103 | 96
Net liability / (asset) arising from defined benefit obligation | 268 | 249
Other Benefits |  |
Disclosure of net defined benefit liability (asset) [line items] |  |
Present value of funded obligation | 0 | 0
Fair value of plan assets | 0 | 0
Deficit of funded plans | 0 | 0
Present value of unfunded obligation | 143 | 154
Net liability / (asset) arising from defined benefit obligation | € 143 | € 154

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- Definition The amount of non-current net defined benefit liability. [Refer: Net defined benefit liability] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_55&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The fair value of defined benefit plan assets. Plan assets comprise assets held by a long-term employee benefit fund and qualifying insurance policies. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The fair value of any plan assets, less the present value of the defined benefit obligation. [Refer: Plan assets [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 57 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_57_a&doctype=Standard -URIDate 2023-03-23 + Details
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