Borrowings - Debt classification (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Borrowings | ||
| Non Current Borrowings | $ 2,813.2 | $ 2,842.0 |
| Current borrowings | 322.9 | 295.7 |
| Total Borrowings | 3,136.1 | 3,137.7 |
| Borrowings including classified as held for sale | 3,241.6 | 3,234.4 |
| Assets and liabilities classified as held for sale | ||
| Borrowings | ||
| Non Current Borrowings | 86.3 | 82.8 |
| Current borrowings | 19.2 | 13.9 |
| Total Borrowings | 105.5 | 96.7 |
| Senior Notes | ||
| Borrowings | ||
| Non Current Borrowings | 1,965.1 | 1,965.5 |
| Current borrowings | 247.5 | 218.4 |
| Debentures and bank term loans | ||
| Borrowings | ||
| Non Current Borrowings | 848.1 | 876.5 |
| Current borrowings | 75.3 | 77.2 |
| Letters of credit | ||
| Borrowings | ||
| Current borrowings | $ 0.1 | $ 0.1 |