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Equity - Schedule of changes in currency translation reserve (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of equity [Line Items] |  |  |
Opening balance | € 2,192 | € 540 |
Closing balance | 2,767 | 2,192 | € 540
Currency translation reserve |  |  |
Disclosure of equity [Line Items] |  |  |
Opening balance | (2,395) | (3,483) | (3,636)
Unrealised revaluations | 183 | (7) | (61)
Realised gains/losses transferred to the statement of profit or loss |  | 4 |
Exchange rate differences | (316) | 444 | 214
Closing balance | € (2,527) | (2,395) | (3,483)
Currency translation reserve | Impact IAS 29 on opening balance |  |  |
Disclosure of equity [Line Items] |  |  |
Opening balance |  | € 647 |
Closing balance |  |  | € 647

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- Definition The gains (losses) including exchange differences recognised in profit or loss on the fair value measurement of the entity's own equity instruments. [Refer: At fair value [member]] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IFRS -Number 13 -IssueDate 2023-01-01 -Paragraph 93 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=13&code=ifrs-tx-2023-en-r&anchor=para_93_e_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition A component of equity representing reserves within equity, not including retained earnings. [Refer: Retained earnings] + References Reference 1: http://www.xbrl.org/2003/role/exampleRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 78 -Subparagraph e -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_78_e&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The increase (decrease) in reserves resulting from revaluations to fair value. + References No definition available. + Details
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