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Goodwill and Other Intangible Assets - Additional Information (Details) - EUR (€) € in Billions	6 Months Ended
	Jun. 30, 2025	Dec. 31, 2024
Marketed products
Disclosure of reconciliation of changes in goodwill [line items]
Carrying amount of intangible assets	€ 11.0	€ 12.7
Weighted average amortization period	10 years
Technological platforms
Disclosure of reconciliation of changes in goodwill [line items]
Carrying amount of intangible assets	€ 1.0	€ 1.1
Weighted average amortization period	18 years

X

- 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.

+ References

No definition available.

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- Definition

The amount of identifiable non-monetary assets without physical substance. This amount does not include goodwill. [Refer: Goodwill]

+ References

Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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Reference 2: 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]

+ References

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