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Derivative financial instruments and hedge accounting - Effects recognized in finance income (loss) (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Derivative financial instruments and hedge accounting |  |  |
Income (expense) from derivative financial instruments | € (61) | € 13 | € (306)
Currency |  |  |
Derivative financial instruments and hedge accounting |  |  |
Income (expense) from derivative financial instruments | (63) | (70) | (322)
Interest rate risk |  |  |
Derivative financial instruments and hedge accounting |  |  |
Income (expense) from derivative financial instruments | € 2 | 81 | € 16
Option contract |  |  |
Derivative financial instruments and hedge accounting |  |  |
Income (expense) from derivative financial instruments |  | € 2 |

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- Definition Disclosure of derivative financial instruments + References No definition available. + Details
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- Definition The gains (losses) resulting from change in the fair value of derivatives recognised in profit or loss. [Refer: Derivatives [member]] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 85 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_85&doctype=Standard -URIDate 2023-03-23 + Details
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- Details
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- Details
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