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PENSIONS AND OTHER POST-EMPLOYMENT BENEFIT OBLIGATIONS - Amounts Recognized in the Consolidated Statement of Financial Position (Details) € in Millions, $ in Millions | Jun. 30, 2024 EUR (€) | Dec. 31, 2023 EUR (€) | Dec. 31, 2023 USD ($)
--- | --- | --- | ---
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Fair value of plan assets | € (492) | € (488) |
Net defined benefit liability | 380 | 411 | $ 411
Of which net liability | 380 | 411 |
Funded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | 629 | 653 |
Fair value of plan assets | (492) | (488) |
Deficit of funded plans | 137 | 165 |
Unfunded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | 243 | 246 |
Pension Benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Net defined benefit liability | 241 | 268 |
Pension Benefits | Funded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | 629 | 653 |
Fair value of plan assets | (492) | (488) |
Deficit of funded plans | 137 | 165 |
Pension Benefits | Unfunded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | 104 | 103 |
Other Benefits |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Net defined benefit liability | 139 | 143 |
Other Benefits | Funded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | 0 | 0 |
Fair value of plan assets | 0 | 0 |
Deficit of funded plans | 0 | 0 |
Other Benefits | Unfunded |  |  |
Disclosure of net defined benefit liability (asset) [line items] |  |  |
Present value of obligation | € 139 | € 143 |

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- Definition The present value, without deducting any plan assets, of expected future payments required to settle the obligation resulting from employee service in the current and prior periods. [Refer: Plan assets, at fair value] + 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 amount of deficit or surplus in a defined benefit plan, adjusted for any effect of limiting a net defined benefit asset to the asset ceiling. [Refer: Defined benefit plans [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 19 -IssueDate 2023-01-01 -Paragraph 140 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=19&code=ifrs-tx-2023-en-r&anchor=para_140_a&doctype=Standard -URIDate 2023-03-23 + Details
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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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