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Financial assets at fair value through profit or loss - Breakdown by currency (Details) - EUR (€) € in Millions | Dec. 31, 2022 | Dec. 31, 2021
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Financial assets at fair value through profit or loss |  |
Financial assets held for trading | € 6,487 | € 6,301
Financial assets at fair value through profit or loss | 8,251 | 6,301
Euro |  |
Financial assets at fair value through profit or loss |  |
Financial assets held for trading | 3,599 | 3,913
U.S. dollars |  |
Financial assets at fair value through profit or loss |  |
Financial assets held for trading | 2,885 | 2,336
Other currencies |  |
Financial assets at fair value through profit or loss |  |
Financial assets held for trading | 3 | € 52
Other financial assets at fair value through profit or loss |  |
Financial assets at fair value through profit or loss |  |
Financial assets at fair value through profit or loss | 1,764 |
Other financial assets at fair value through profit or loss | Euro |  |
Financial assets at fair value through profit or loss |  |
Financial assets at fair value through profit or loss | 1,201 |
Other financial assets at fair value through profit or loss | U.S. dollars |  |
Financial assets at fair value through profit or loss |  |
Financial assets at fair value through profit or loss | € 563 |

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- Definition The amount of current financial assets measured at fair value through profit or loss classified as held for trading. [Refer: Financial assets at fair value through profit or loss, classified as held for trading] + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2022-03-24 -Paragraph 55 -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2022-en-r&anchor=para_55&doctype=Standard -URIDate 2022-03-24 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Note Expiry date 2023-01-01 -Name IFRS -Number 7 -IssueDate 2022-03-24 -Paragraph 8 -Subparagraph a -URI https://taxonomy.ifrs.org/xifrs-link?type=IFRS&num=7&code=ifrs-tx-2017-en-b&anchor=para_8_a&doctype=Standard&book=b -URIDate 2022-03-24 + Details
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