Acquisitions - Business Acquisitions by Acquisition, Consideration (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Business Acquisition [Line Items]
Goodwill	$ 6,609.7	$ 6,064.2	$ 5,981.6
Total
Business Acquisition [Line Items]
Accounts receivable	52.4
Inventories	99.2
Other current assets	11.2
Property, plant and equipment	65.5
Goodwill	511.5
Other intangible assets	380.9
Other noncurrent assets	12.5
Total current liabilities	(82.1)
Deferred tax liabilities	(58.5)
Other noncurrent liabilities	(13.3)
Total consideration	979.3
Air Treatment
Business Acquisition [Line Items]
Accounts receivable	26.1
Inventories	43.9
Other current assets	2.1
Property, plant and equipment	18.4
Goodwill	279.9
Other intangible assets	238.6
Other noncurrent assets	7.6
Total current liabilities	(35.9)
Deferred tax liabilities	(54.8)
Other noncurrent liabilities	(6.9)
Total consideration	519.0
Roots
Business Acquisition [Line Items]
Accounts receivable	14.5
Inventories	34.2
Other current assets	2.9
Property, plant and equipment	42.1
Goodwill	106.6
Other intangible assets	116.9
Other noncurrent assets	4.5
Total current liabilities	(27.1)
Deferred tax liabilities	0.0
Other noncurrent liabilities	(2.1)
Total consideration	292.5
All others
Business Acquisition [Line Items]
Accounts receivable	11.8	16.2
Inventories	21.1	20.4
Other current assets	6.2	1.3
Property, plant and equipment	5.0	8.9
Goodwill	125.0	151.9
Other intangible assets	25.4	43.0
Other noncurrent assets	0.4	0.9
Total current liabilities	(19.1)	(30.7)
Deferred tax liabilities	(3.7)	(9.7)
Other noncurrent liabilities	(4.3)	(1.9)
Total consideration	$ 167.8	200.3
Total Consideration
Business Acquisition [Line Items]
Accounts receivable		18.0
Inventories		26.6
Other current assets		1.4
Property, plant and equipment		9.2
Goodwill		209.3
Other intangible assets		84.9
Other noncurrent assets		14.7
Total current liabilities		(34.2)
Deferred tax liabilities		(23.5)
Other noncurrent liabilities		(1.9)
Total consideration		304.5
Dosatron International
Business Acquisition [Line Items]
Accounts receivable		1.8
Inventories		6.2
Other current assets		0.1
Property, plant and equipment		0.3
Goodwill		57.4
Other intangible assets		41.9
Other noncurrent assets		13.8
Total current liabilities		(3.5)
Deferred tax liabilities		(13.8)
Other noncurrent liabilities		0.0
Total consideration		$ 104.2