SEGMENT REPORTING - Schedule of non-current and non-financial assets (Details) - USD ($) $ in Millions |
Mar. 31, 2026 |
Dec. 31, 2025 |
|---|---|---|
| SEGMENT REPORTING | ||
| Total | $ 6,513.0 | $ 6,581.5 |
| Canada | ||
| SEGMENT REPORTING | ||
| Total | 2,457.1 | 2,499.2 |
| France | ||
| SEGMENT REPORTING | ||
| Total | 1,534.1 | 1,524.3 |
| The United States | ||
| SEGMENT REPORTING | ||
| Total | 1,153.9 | 1,143.3 |
| Other | ||
| SEGMENT REPORTING | ||
| Total | $ 1,367.9 | $ 1,414.7 |