Business Combinations - Unaudited Pro Forma Information (Details) - USD ($) $ in Millions	12 Months Ended			24 Months Ended
	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019	Dec. 31, 2020
Unaudited Pro Forma Information [Abstract]
Revenues	$ 23.5	$ 8.9
Increase (decrease) to revenue as a result of deferred revenue fair value adjustment, net of tax	5,152.4	3,973.2	$ 2,017.5
Increase (decrease) to expense as a result of inventory fair value adjustment, net of tax	$ 3,163.9	2,568.3	1,239.2
Ingersoll Rand Industrial
Unaudited Pro Forma Information [Abstract]
Revenues		5,398.0	6,146.5
Net Income (Loss)		164.8	101.1
Increase (decrease) to expense as a result of transaction costs, net of tax		42.3	45.0	$ 87.3
Ingersoll Rand Industrial | Deferred Revenue
Unaudited Pro Forma Information [Abstract]
Increase (decrease) to revenue as a result of deferred revenue fair value adjustment, net of tax		13.8	(13.8)
Ingersoll Rand Industrial | Inventory
Unaudited Pro Forma Information [Abstract]
Increase (decrease) to expense as a result of inventory fair value adjustment, net of tax		(89.6)	89.6
Ingersoll Rand Industrial | Transaction Costs
Unaudited Pro Forma Information [Abstract]
Increase (decrease) to expense as a result of transaction costs, net of tax		$ (34.8)	$ 34.8