Business Combinations - Property, Plant and Equipment (Details) - USD ($) $ in Millions	Dec. 31, 2020	Feb. 29, 2020
Business Acquisition [Line Items]
Total property, plant and equipment		$ 516.5
Ingersoll Rand Industrial
Business Acquisition [Line Items]
Total property, plant and equipment	$ 516.5	520.0
Ingersoll Rand Industrial | Land and buildings
Business Acquisition [Line Items]
Total property, plant and equipment		215.1
Ingersoll Rand Industrial | Machinery and equipment
Business Acquisition [Line Items]
Total property, plant and equipment		256.9
Ingersoll Rand Industrial | Office furniture and equipment
Business Acquisition [Line Items]
Total property, plant and equipment		13.4
Ingersoll Rand Industrial | Other
Business Acquisition [Line Items]
Total property, plant and equipment		1.0
Ingersoll Rand Industrial | Construction in progress
Business Acquisition [Line Items]
Total property, plant and equipment		$ 30.1