Share based compensation reserve - Reserve Summary (Details) $ / shares in Units, € in Millions, $ in Millions |
3 Months Ended | 6 Months Ended | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2026
USD ($)
$ / shares
|
Mar. 31, 2026
EUR (€)
|
Mar. 31, 2026
USD ($)
$ / shares
|
Jun. 30, 2025
EUR (€)
|
Jun. 30, 2025
USD ($)
$ / shares
|
Mar. 31, 2025
EUR (€)
|
Mar. 31, 2025
USD ($)
$ / shares
|
Jun. 30, 2026
EUR (€)
|
Jun. 30, 2026
USD ($)
|
Jun. 30, 2025
EUR (€)
|
Jun. 30, 2025
USD ($)
|
|
| 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 | € 12.8 | 12.8 | ||||||||||
| Disclosure of reserves within equity [line items] | ||||||||||||
| Dividends paid, ordinary shares | 20.6 | $ 24.2 | 20.3 | $ 23.8 | € 25.3 | $ 26.2 | € 23.1 | $ 25.9 | 40.9 | $ 48.0 | € 48.4 | $ 52.1 |
| Dividends paid, ordinary shares per share | $ / shares | $ 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 | € 26.2 | 16.9 | 26.2 | ||||||||
| Reserve of share-based payments | € 12.8 | € 13.2 | € 12.8 | € 13.2 | ||||||||