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FINANCIAL INSTRUMENTS - Derivatives Measured at Fair Value (Details) - EUR (€) € in Millions | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure of financial instruments measured at fair value [line items] |  |
Other financial assets - derivatives | € 32 | € 39
Other financial liabilities - derivatives | 42 | 55
Level 1 |  |
Disclosure of financial instruments measured at fair value [line items] |  |
Other financial assets - derivatives | 17 | 6
Other financial liabilities - derivatives | 7 | 17
Level 2 |  |
Disclosure of financial instruments measured at fair value [line items] |  |
Other financial assets - derivatives | 15 | 33
Other financial liabilities - derivatives | 35 | 38
Level 3 |  |
Disclosure of financial instruments measured at fair value [line items] |  |
Other financial assets - derivatives | 0 | 0
Other financial liabilities - derivatives | € 0 | € 0

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- Definition Disclosure of financial instruments measured at fair value. + References No definition available. + Details
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- Definition The amount of financial assets classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + 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 amount of financial liabilities classified as derivative instruments. [Refer: Financial assets; Derivatives [member]] + 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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