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Other non-current assets - Summary of Other Non-current Assets (Details) - EUR (€) € in Millions | Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
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Disclosure Of Other Non Current Assets [Line Items] |  |  |  |
Other financial assets at fair value through profit or loss |  | € 1,027 | € 808 | € 823
Pre-funded pension obligations |  | 156 | 271 | 269
Long-term prepaid expenses |  | 152 | 114 | 286
Non current loans and receivables | [1] | 502 | 591 | 452
Derivative financial instruments |  | 0 | 0 | 0
Other non-current assets |  | 3,753 | 3,218 | 3,095
Non-current finance lease receivables |  | 116 | 132 |
Other current assets |  | 3,826 | 3,455 | 3,532
Non-current finance lease receivables, gross |  | 181 | 195 |
BioAtrium |  |  |  |
Disclosure Of Other Non Current Assets [Line Items] |  |  |  |
Other current assets |  |  |  | 156
Trading equity securities |  |  |  |
Disclosure Of Other Non Current Assets [Line Items] |  |  |  |
Fair value through other comprehensive income |  | 1,559 | 1,088 | 936
Debt securities |  |  |  |
Disclosure Of Other Non Current Assets [Line Items] |  |  |  |
Fair value through other comprehensive income |  | € 357 | € 346 | € 329
[1] | (a)As of December 31, 2024, this line includes: –Loan of €149 million to the BioAtrium joint venture which matures on December 1, 2031, of which €156 million was recognized in "Other current assets" as of December 31, 2022; –a receivable under a sub-lease amounting to €116 million (€181 million before discounting), versus €132 million (or €195 million before discounting) as of December 31, 2023

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