Goodwill and Other Identifiable Intangible Assets - Definite-life Intangible Assets (Details) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Finite-Lived Intangible Assets, Net [Abstract] | ||
| Cost | $ 2,153.7 | $ 2,155.3 |
| Accumulated amortization | (728.0) | (646.4) |
| Net | 1,425.7 | 1,508.9 |
| Customer relationships | ||
| Finite-Lived Intangible Assets, Net [Abstract] | ||
| Cost | 1,902.1 | 1,904.0 |
| Accumulated amortization | (599.0) | (551.5) |
| Net | 1,303.1 | 1,352.5 |
| Proprietary technologies and patents | ||
| Finite-Lived Intangible Assets, Net [Abstract] | ||
| Cost | 112.1 | 111.8 |
| Accumulated amortization | (38.7) | (31.8) |
| Net | 73.4 | 80.0 |
| Other definite-lived intangible assets | ||
| Finite-Lived Intangible Assets, Net [Abstract] | ||
| Cost | 139.5 | 139.5 |
| Accumulated amortization | (90.3) | (63.1) |
| Net | $ 49.2 | $ 76.4 |