Borrowings - Debt classification (Details) - USD ($) $ in Millions |
Sep. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Borrowings | ||
| Non Current Borrowings | $ 2,603.1 | $ 2,842.0 |
| Current borrowings | 525.9 | 295.7 |
| Total Borrowings | 3,129.0 | 3,137.7 |
| Borrowings including classified as held for sale | 3,129.0 | 3,234.4 |
| Assets and liabilities classified as held for sale | ||
| Borrowings | ||
| Non Current Borrowings | 82.8 | |
| Current borrowings | 13.9 | |
| Total Borrowings | 96.7 | |
| Senior Notes | ||
| Borrowings | ||
| Non Current Borrowings | 1,888.8 | 1,965.5 |
| Current borrowings | 334.1 | 218.4 |
| Debentures and bank term loans | ||
| Borrowings | ||
| Non Current Borrowings | 714.3 | 876.5 |
| Current borrowings | $ 191.8 | 77.2 |
| Letters of credit | ||
| Borrowings | ||
| Current borrowings | $ 0.1 |