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Segment information - Summary of Geographical Information on Net Sales and Non-Current Assets (Details) - EUR (€) € in Millions | 12 Months Ended
--- | ---
Dec. 31, 2024 | Dec. 31, 2023 | Dec. 31, 2022
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | € 41,081 | € 37,817 | [1] | € 37,651 | [1]
Property, plant and equipment owned | 10,091 | 10,160 |  | 9,869 |
Goodwill | 43,384 | 49,404 |  | 49,892 |
Other intangible assets | 22,629 | 24,319 |  | 21,640 |
Total |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | 41,081 | 37,817 | [2] | 37,651 | [3]
Property, plant and equipment owned | 10,091 | 10,160 |  | 9,869 |
Goodwill | 43,384 | 49,404 |  | 49,892 |
Other intangible assets | 22,629 | 24,319 |  | 21,640 |
Europe |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | 9,027 | 8,816 | [2] | 8,490 | [3]
Property, plant and equipment owned | 5,550 | 5,659 |  | 5,365 |
Goodwill | 0 | 0 |  | 0 |
Other intangible assets | 3,307 | 5,566 |  | 6,257 |
France |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | 1,814 | 1,910 | [2] | 1,830 | [3]
Property, plant and equipment owned | 3,112 | 3,085 |  | 2,875 |
Goodwill | 0 | 0 |  | 0 |
Other intangible assets | 0 | 0 |  | 0 |
United States |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | 19,986 | 17,262 | [2] | 16,986 | [3]
Property, plant and equipment owned | 2,411 | 2,322 |  | 2,457 |
Goodwill | 0 | 0 |  | 0 |
Other intangible assets | 18,711 | 17,850 |  | 14,174 |
Other countries |  |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |  |
Net sales | 12,068 | 11,739 | [2] | 12,175 | [3]
Property, plant and equipment owned | 2,130 | 2,179 |  | 2,047 |
Goodwill | 0 | 0 |  | 0 |
Other intangible assets | € 611 | € 903 |  | € 1,209 |
[1] | Figures for comparative periods (2023 and 2022) have been re-presented on a consistent basis to reflect the classification of Opella as a discontinued operation
[2] | (a)Figures for 2023 have been re-presented on a consistent basis to reflect the classification of Opella as a discontinued operation.
[3] | (a)Figures for 2022 have been re-presented on a consistent basis to reflect the classification of Opella as a discontinued operation.

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