Property, Plant and Equipment - Summary of Property, Plant and Equipment (Detail) - USD ($) $ in Millions |
Jun. 30, 2026 |
Dec. 31, 2025 |
|---|---|---|
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | $ 7,419.2 | $ 7,257.4 |
| Accumulated depreciation | (5,182.4) | (5,050.3) |
| Property, plant and equipment, net | 2,236.8 | 2,207.1 |
| Land [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | 22.5 | 22.5 |
| Buildings And Equipment [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | 2,450.3 | 2,419.8 |
| Capitalized Software Costs [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | 619.6 | 623.8 |
| Instruments [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | 4,028.8 | 3,905.0 |
| Construction in Progress [Member] | ||
| Property, Plant and Equipment [Line Items] | ||
| Property, plant and equipment, Gross | $ 298.0 | $ 286.3 |