Business Combinations - Assets Acquired and Liabilities Assumed (Details) - USD ($) $ in Millions	Sep. 30, 2021	Aug. 31, 2021	Jul. 30, 2021	Jan. 31, 2021	Dec. 31, 2020	Feb. 29, 2020
Estimated Fair Value [Abstract]
Goodwill	$ 6,100.6				$ 5,582.6
Seepex
Estimated Fair Value [Abstract]
Accounts receivable		$ 24.9
Inventories		28.2
Other current assets		2.0
Property, plant and equipment		24.7
Goodwill		441.1
Other intangible assets		0.3
Other noncurrent assets		0.5
Total current liabilities		(33.4)
Total noncurrent liabilities		(6.8)
Total consideration		$ 481.5
M-D Pneumatics and Kinney Vacuum Pumps
Estimated Fair Value [Abstract]
Accounts receivable				$ 4.8
Inventories				3.8
Other current assets				0.2
Property, plant and equipment				16.2
Goodwill				80.0
Other intangible assets				82.5
Other noncurrent assets				0.0
Total current liabilities				(3.5)
Total noncurrent liabilities				0.0
Total consideration				$ 184.0
Maximus Solutions
Estimated Fair Value [Abstract]
Accounts receivable			$ 4.3
Inventories			3.0
Other current assets			0.2
Property, plant and equipment			2.1
Goodwill			64.1
Other intangible assets			39.3
Other noncurrent assets			0.0
Total current liabilities			(2.3)
Total noncurrent liabilities			(0.2)
Total consideration			$ 110.5
All Others
Estimated Fair Value [Abstract]
Accounts receivable	2.9
Inventories	3.1
Other current assets	0.1
Property, plant and equipment	2.5
Goodwill	3.5
Other intangible assets	29.9
Other noncurrent assets	0.0
Total current liabilities	(2.0)
Total noncurrent liabilities	(6.7)
Total consideration	$ 33.3
Ingersoll Rand Industrial
Estimated Fair Value [Abstract]
Cash						$ 38.8
Accounts receivable						585.8
Inventories						625.4
Other current assets						87.2
Property, plant and equipment						516.5
Goodwill						4,899.2
Other intangible assets						3,766.6
Other noncurrent assets						270.9
Total current liabilities						(753.0)
Deferred tax liability						(842.4)
Long-term debt, net of debt issuance costs and an original issue discount						(1,851.7)
Other noncurrent liabilities						(333.0)
Noncontrolling interest						(73.3)
Total consideration						6,937.0
Current maturities of long-term debt						$ 19.0