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Accounting policies - Foreign currency transactions (Details) | 12 Months Ended | 36 Months Ended
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Dec. 31, 2025 Argentian_peso / € stage | Dec. 31, 2024 Argentian_peso / € | Dec. 31, 2018 | Dec. 31, 2018
Disclosure of geographical areas [line items] |  |  |  |
Number of consecutive stages | stage | 2 |  |  |
Inflation rate |  |  | 48.00% | 147.00%
Argentina |  |  |  |
Disclosure of geographical areas [line items] |  |  |  |
Inflation rate | 31.50% | 117.80% |  |
Closing foreign exchange rate | 1,706.38 | 1,071.16 |  |
Closing foreign exchange rate, applied, hyperinflationary economy |  | 1,232.39 |  |

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- Definition The spot exchange rate at the end of the reporting period. Exchange rate is the ratio of exchange for two currencies. Spot exchange rate is the exchange rate for immediate delivery. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Note Expiry date 2027-01-01 -Name IAS -Number 1 -IssueDate 2025-01-01 -Paragraph 112 -Subparagraph c -URI https://taxonomy.ifrs.org/xifrs-link?type=IAS&num=1&code=ifrs-tx-2025-en-b&anchor=para_112_c&doctype=Standard -URIDate 2025-03-27 + Details
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- Details
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