Property, Plant and Equipment

12 Months Ended

Dec. 31, 2024

Property, Plant and Equipment [Abstract]

Property, Plant and Equipment

8.Property, Plant and Equipment

Property, plant and equipment consisted of the following (in millions):

	As of December 31,
	2024			2023
Land	$	18.5		$	18.9
Building and equipment		2,273.1			2,245.9
Capitalized software costs		575.1			552.2
Instruments		3,589.6			3,748.6
Construction in progress		233.9			200.6
		6,690.2			6,766.2
Accumulated depreciation		(4,641.4	)		(4,705.8	)
Property, plant and equipment, net	$	2,048.8		$	2,060.4

Depreciation expense was $404.4 million, $390.2 million and $399.6 million for the years ended December 31, 2024, 2023 and 2022, respectively.

We had $10.4 million and $30.8 million of property, plant and equipment included in accounts payable as of December 31, 2024 and 2023, respectively.