Goodwill and other intangible assets - Additional Information (Details) - EUR (€) € in Millions |
6 Months Ended | |
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Jun. 30, 2026 |
Dec. 31, 2025 |
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| Disclosure of reconciliation of changes in goodwill [line items] | ||
| Goodwill | € 41,954 | € 41,300 |
| Carrying amount of intangible assets | 26,359 | 26,261 |
| Marketed products | ||
| Disclosure of reconciliation of changes in goodwill [line items] | ||
| Carrying amount of intangible assets | € 17,100 | 16,200 |
| Weighted average amortization period | 11 years | |
| Technological platforms | ||
| Disclosure of reconciliation of changes in goodwill [line items] | ||
| Carrying amount of intangible assets | € 800 | € 900 |
| Weighted average amortization period | 18 years |
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- Definition Line items represent concepts included in a table. These concepts are used to disclose reportable information associated with members defined in one or many axes of the table. No definition available.
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- Definition The amount of assets representing the future economic benefits arising from other assets acquired in a business combination that are not individually identified and separately recognised. [Refer: Total for all business combinations [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The useful life, measured as period of time, used for intangible assets other than goodwill. [Refer: Intangible assets other than goodwill] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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