Related party transactions (Details) - Total for all joint ventures - EUR (€) € in Millions |
12 Months Ended | |
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Dec. 31, 2025 |
Dec. 31, 2024 |
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| Disclosure of Transactions between Related Parties [Line Items] | ||
| Sales to joint ventures | € 1,018 | € 1,168 |
| Purchases from joint ventures | 128 | 110 |
| Receivables from joint ventures | 90 | 112 |
| Payables to joint ventures | 149 | 111 |
| Loans to joint ventures | 205 | 227 |
| Royalties and service fees | € 23 | € 9 |
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- Definition The amounts payable resulting from related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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- Definition The amounts receivable resulting from related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/disclosureRef
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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 goods purchased by the entity in related party transactions. [Refer: Total for all related parties [member]] Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- References Reference 1: http://www.xbrl.org/2003/role/exampleRef
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- Definition Amount Of Loan Owed By Related Party Transactions No definition available.
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- Definition Royalty And Service Fee No definition available.
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- Details
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