Share based compensation reserve - Reserve Summary (Details) $ / shares in Units, € in Millions, $ in Millions |
3 Months Ended | 9 Months Ended | |||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2026
$ / shares
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2026
USD ($)
$ / shares
|
Mar. 31, 2026
EUR (€)
|
Mar. 31, 2026
USD ($)
|
Dec. 31, 2025
EUR (€)
|
Dec. 31, 2025
USD ($)
|
Sep. 30, 2025
EUR (€)
|
Jun. 30, 2025
USD ($)
$ / shares
|
Mar. 31, 2025
EUR (€)
|
Mar. 31, 2025
USD ($)
$ / shares
|
Dec. 31, 2024
EUR (€)
|
Dec. 31, 2024
USD ($)
$ / shares
|
Sep. 30, 2026
EUR (€)
|
Sep. 30, 2026
USD ($)
|
Sep. 30, 2025
EUR (€)
|
Sep. 30, 2025
USD ($)
|
|
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |||||||||||||||||
| Reserve of share-based payments | € 16.9 | € 16.9 | |||||||||||||||
| Reserve of share-based payments | € 16.9 | 8.5 | |||||||||||||||
| Disclosure of reserves within equity [line items] | |||||||||||||||||
| Dividends paid, ordinary shares | € 20.8 | $ 23.8 | 20.3 | $ 23.8 | 20.6 | $ 24.2 | € 21.3 | $ 24.9 | € 23.1 | $ 25.9 | € 25.3 | $ 26.2 | 61.7 | $ 71.8 | € 69.7 | $ 77.0 | |
| Dividends paid, ordinary shares per share | $ / shares | $ 0.17 | $ 0.17 | $ 0.17 | $ 0.17 | $ 0.17 | ||||||||||||
| Share based compensation reserve | |||||||||||||||||
| Disclosure of terms and conditions of share-based payment arrangement [line items] | |||||||||||||||||
| Reserve of share-based payments | € 16.9 | 15.3 | € 26.2 | 16.9 | 26.2 | ||||||||||||
| Reserve of share-based payments | € 16.9 | € 15.3 | € 26.2 | € 8.5 | € 15.3 | ||||||||||||