CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Comprehensive Income Attributable to Ingersoll Rand Inc.
Net income (loss) attributable to Ingersoll Rand Inc.	$ 562.5	$ (33.3)	$ 159.1
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net	(103.0)	268.2	(1.5)
Unrecognized gains on cash flow hedges, net	0.0	10.9	7.2
Pension and other postretirement prior service cost and gain (loss), net	48.7	(8.9)	(6.5)
Other comprehensive income (loss), net of tax	(54.3)	270.2	(0.8)
Comprehensive income attributable to Ingersoll Rand Inc.	508.2	236.9	158.3
Comprehensive Income (Loss) Attributable to Noncontrolling Interests
Net income attributable to noncontrolling interests	2.5	0.9	0.0
Other comprehensive loss, net of tax:
Foreign currency translation adjustments, net	(2.3)	(1.4)	0.0
Total other comprehensive loss, net of tax	(2.3)	(1.4)	0.0
Comprehensive income (loss) attributable to noncontrolling interests	0.2	(0.5)	0.0
Total Comprehensive Income	$ 508.4	$ 236.4	$ 158.3