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Inventories, net - Allowance for Obsolescence (Details) - EUR (€) € in Millions | 12 Months Ended
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Dec. 31, 2025 | Dec. 31, 2024 | Dec. 31, 2023
Activity in the allowance for obsolescence |  |  |
Balance at beginning of year | € (911.5) | € (693.2) |
Additions for the year | (469.4) | (554.7) | € (485.3)
Effect of changes in exchange rates | 6.1 | (1.7) |
Utilization of the reserve | 602.0 | 338.1 |
Balance at end of year | € (772.8) | € (911.5) | € (693.2)

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