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Segment information - Schedule of Segment Results (Details) - EUR (€) € in Millions | 6 Months Ended
--- | ---
Jun. 30, 2026 | Jun. 30, 2025
Disclosure of geographical areas [line items] |  |
Net sales | € 22,106 | € 19,889
Other revenues | 1,438 | 1,452
Cost of sales | (6,155) | (5,881)
Research and development expenses | (3,980) | (3,717)
Selling and general expenses | (4,792) | (4,506)
Net income attributable to non-controlling interests | 40 | 25
Biopharma |  |
Disclosure of geographical areas [line items] |  |
Net sales | € 22,106 | 19,889
Change in revenue, on a reported basis (IFRS), percentage | 11.10% |
Change in revenue, at constant exchange rates non-IFRS, percentage | 15.70% |
Other revenues | € 1,168 | 1,246
Change in other revenue, on a reported basis (IFRS), percentage | (6.30%) |
Change in other revenue, at constant exchange rates non-IFRS, percentage | (2.00%) |
Cost of sales | € (5,812) | (5,753)
Change in cost of sales, on a reported basis (IFRS), percentage | 1.00% |
Change in cost of sales, at constant exchange rates non-IFRS, percentage | 3.80% |
Research and development expenses | € (3,979) | (3,716)
Change in research and development expenses, on a reported basis (IFRS), percentage | 7.10% |
Change in research and development expenses, at constant exchange rates non-IFRS, percentage | 9.90% |
Selling and general expenses | € (4,690) | (4,447)
Change in selling and general expenses, on a reported basis (IFRS), percentage | 5.50% |
Change in selling and general expenses, at constant exchange rates non-IFRS, percentage | 9.40% |
Other operating income and expenses | € (2,630) | (1,941)
Share of profit/(loss) from investments accounted for using the equity method | 74 | 77
Net income attributable to non-controlling interests | (7) | (8)
Business operating income | € 6,230 | 5,347
Change in business operating income, on a reported basis (IFRS), percentage | 16.50% |
Change in business operating income, at constant exchange rates non-IFRS, percentage | 22.20% |
As % of net sales | 28.20% |
Other |  |
Disclosure of geographical areas [line items] |  |
Net sales |  |
Other revenues | € 270 | 206
Change in other revenue, on a reported basis (IFRS), percentage | 31.10% |
Change in other revenue, at constant exchange rates non-IFRS, percentage | 31.10% |
Cost of sales | € (133) | (128)
Change in cost of sales, on a reported basis (IFRS), percentage | 3.90% |
Change in cost of sales, at constant exchange rates non-IFRS, percentage | 3.10% |
Research and development expenses | € (1) | (1)
Change in research and development expenses, on a reported basis (IFRS), percentage | 0.00% |
Change in research and development expenses, at constant exchange rates non-IFRS, percentage | 0.00% |
Selling and general expenses | € (102) | (59)
Change in selling and general expenses, on a reported basis (IFRS), percentage | 72.90% |
Change in selling and general expenses, at constant exchange rates non-IFRS, percentage | 76.30% |
Other operating income and expenses | € (6) | (2)
Share of profit/(loss) from investments accounted for using the equity method |  | 0
Net income attributable to non-controlling interests |  | 0
Business operating income | € 28 | 16
Change in business operating income, on a reported basis (IFRS), percentage | 75.00% |
Change in business operating income, at constant exchange rates non-IFRS, percentage | 68.80% |
Total |  |
Disclosure of geographical areas [line items] |  |
Net sales | € 22,106 | 19,889
Change in revenue, on a reported basis (IFRS), percentage | 11.10% |
Change in revenue, at constant exchange rates non-IFRS, percentage | 15.70% |
Other revenues | € 1,438 | 1,452
Change in other revenue, on a reported basis (IFRS), percentage | (1.00%) |
Change in other revenue, at constant exchange rates non-IFRS, percentage | 2.70% |
Cost of sales | € (5,945) | (5,881)
Change in cost of sales, on a reported basis (IFRS), percentage | 1.10% |
Change in cost of sales, at constant exchange rates non-IFRS, percentage | 3.80% |
Research and development expenses | € (3,980) | (3,717)
Change in research and development expenses, on a reported basis (IFRS), percentage | 7.10% |
Change in research and development expenses, at constant exchange rates non-IFRS, percentage | 9.90% |
Selling and general expenses | € (4,792) | (4,506)
Change in selling and general expenses, on a reported basis (IFRS), percentage | 6.30% |
Change in selling and general expenses, at constant exchange rates non-IFRS, percentage | 10.30% |
Other operating income and expenses | € (2,636) | (1,943)
Share of profit/(loss) from investments accounted for using the equity method | 74 | 77
Net income attributable to non-controlling interests | (7) | (8)
Business operating income | € 6,258 | € 5,363
Change in business operating income, on a reported basis (IFRS), percentage | 16.70% |
Change in business operating income, at constant exchange rates non-IFRS, percentage | 22.30% |
As % of net sales | 28.30% |

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