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Property, plant and equipment - Summary of Acquisitions and Capitalized Interest by Operating Segment (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2023 | Dec. 31, 2022 | Dec. 31, 2021
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions | € 1,693 | € 1,748 | € 1,504
Capitalized interest | 26 | 17 | 14
Biopharma |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions | 1,592 | 1,678 |
Biopharma | Manufacturing & Supply |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions | 1,188 | 1,129 |
Pharmaceuticals |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions |  |  | 1,010
Vaccines |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions |  |  | 421
Consumer Healthcare |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions | 101 | 70 | € 73
Consumer Healthcare | Manufacturing & Supply |  |  |
Disclosure of acquisitions of property plant and equipment by operating segments [line items] |  |  |
Acquisitions | € 90 | € 63 |

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- Definition The amount of additions to property, plant and equipment other than those acquired through business combinations. [Refer: Business combinations [member]; Property, plant and equipment] + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Name IAS -Number 16 -IssueDate 2023-01-01 -Paragraph 73 -Subparagraph e -Clause i -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=16&code=ifrs-tx-2023-en-r&anchor=para_73_e_i&doctype=Standard -URIDate 2023-03-23 + Details
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- Definition The amount of interest costs that an entity incurs in connection with the borrowing of funds that are directly attributable to the acquisition, construction or production of a qualifying asset and which form part of the cost of that asset. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Name IAS -Number 1 -IssueDate 2023-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2023-en-r&anchor=para_112_c&doctype=Standard -URIDate 2023-03-23 + Details
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