CONDENSED CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) - USD ($) $ in Millions	3 Months Ended
	Mar. 31, 2022	Mar. 31, 2021
Comprehensive Income (Loss) Attributable to Ingersoll Rand Inc.
Net income (loss) attributable to Ingersoll Rand Inc.	$ 103.7	$ (90.4)
Other comprehensive loss, net of tax:
Foreign currency translation adjustments, net	(28.8)	(99.8)
Pension and other postretirement prior service cost and gain (loss), net	(1.1)	1.2
Total other comprehensive loss, net of tax	(29.9)	(98.6)
Comprehensive income (loss) Attributable to Ingersoll Rand Inc.	73.8	(189.0)
Comprehensive Income (Loss) Attributable to Noncontrolling Interests
Net income attributable to noncontrolling interests	0.8	0.3
Other comprehensive income (loss), net of tax:
Foreign currency translation adjustments, net	0.6	(1.1)
Total other comprehensive income (loss), net of tax	0.6	(1.1)
Comprehensive income (loss) attributable to noncontrolling interests	1.4	(0.8)
Total Comprehensive Income (Loss)	$ 75.2	$ (189.8)