Properties (Details) - USD ($) $ in Millions	3 Months Ended	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2022	Dec. 31, 2021	Dec. 31, 2020
Property, Plant and Equipment [Line Items]
Total properties	$ 410.8	$ 410.8	$ 468.0
Other charges related to the cost-reduction effort		47.4	22.8	$ 70.0
Asset write-offs
Property, Plant and Equipment [Line Items]
Other charges related to the cost-reduction effort	13.6
Buildings
Property, Plant and Equipment [Line Items]
Total properties	0.3	0.3	0.3
Machinery and office equipment
Property, Plant and Equipment [Line Items]
Total properties	232.6	232.6	267.8
Internal-use software
Property, Plant and Equipment [Line Items]
Total properties	170.9	170.9	186.0
Rental equipment
Property, Plant and Equipment [Line Items]
Total properties	$ 7.0	$ 7.0	$ 13.9