CONDENSED CONSOLIDATED STATEMENTS OF OPERATIONS - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2022	Sep. 30, 2021	Sep. 30, 2022	Sep. 30, 2021
Income Statement [Abstract]
Revenues	$ 1,515.7	$ 1,325.0	$ 4,292.6	$ 3,733.6
Cost of sales	940.4	810.7	2,621.4	2,254.5
Gross Profit	575.3	514.3	1,671.2	1,479.1
Selling and administrative expenses	278.7	252.6	819.8	772.1
Amortization of intangible assets	93.8	80.3	263.6	244.8
Other operating expense, net	12.8	17.5	43.4	36.9
Operating Income	190.0	163.9	544.4	425.3
Interest expense	26.6	22.5	68.8	68.3
Loss on extinguishment of debt	0.0	9.0	1.1	9.0
Other income, net	(9.8)	(3.5)	(21.8)	(40.1)
Income from Continuing Operations Before Income Taxes	173.2	135.9	496.3	388.1
Provision for income taxes	30.3	2.7	104.6	25.8
Income (loss) on equity method investments	2.6	(2.2)	(2.5)	(2.9)
Income from Continuing Operations	145.5	131.0	389.2	359.4
Income (loss) from discontinued operations, net of tax	0.5	(4.2)	0.6	(88.1)
Net Income	146.0	126.8	389.8	271.3
Less: Net income attributable to noncontrolling interests	0.9	0.8	2.5	1.8
Net Income Attributable to Ingersoll Rand Inc.	145.1	126.0	387.3	269.5
Amounts attributable to Ingersoll Rand Inc. common stockholders:
Income from continuing operations, net of tax	144.6	130.2	386.7	357.6
Income (loss) from discontinued operations, net of tax	0.5	(4.2)	0.6	(88.1)
Net Income Attributable to Ingersoll Rand Inc.	$ 145.1	$ 126.0	$ 387.3	$ 269.5
Basic earnings (loss) per share of common stock:
Earnings from continuing operations (in usd per share)	$ 0.36	$ 0.32	$ 0.95	$ 0.86
Loss from discontinued operations (in usd per share)	0	(0.01)	0	(0.21)
Net earnings (in usd per share)	0.36	0.31	0.96	0.65
Diluted earnings (loss) per share of common stock:
Earnings from continuing operations (in usd per share)	0.35	0.31	0.94	0.84
Loss from discontinued operations (in usd per share)	0	(0.01)	0	(0.21)
Net earnings (in usd per share)	$ 0.36	$ 0.30	$ 0.94	$ 0.64