Borrowings - Debt classification (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Borrowings | ||
| Non Current Borrowings | $ 2,786.3 | $ 2,842.0 |
| Current borrowings | 323.5 | 295.7 |
| Total Borrowings | 3,109.8 | 3,137.7 |
| Borrowings including classified as held for sale | 3,109.8 | 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 | 1,966.3 | 1,965.5 |
| Current borrowings | 218.4 | 218.4 |
| Debentures and bank term loans | ||
| Borrowings | ||
| Non Current Borrowings | 820.0 | 876.5 |
| Current borrowings | 105.0 | 77.2 |
| Letters of credit | ||
| Borrowings | ||
| Current borrowings | $ 0.1 | $ 0.1 |