Restructuring Charges Segments (Details) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2023	Sep. 30, 2022	Sep. 30, 2023	Sep. 30, 2022
Restructuring Cost and Reserve [Line Items]
Restructuring charges	$ (0.6)	$ (5.8)	$ (0.7)	$ 0.7
Lease impairment costs	(0.7)	(7.3)	(1.9)	(2.0)
IA&C
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(0.5)	0.0	(0.2)	6.1
Lease impairment costs	(0.6)		(0.8)	5.2
SC&E
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(0.2)	(5.8)	0.7	(5.4)
Lease impairment costs	(0.2)	(7.3)		(7.1)
Corporate and Other
Restructuring Cost and Reserve [Line Items]
Restructuring charges	0.2	0.0	0.1	0.1
MD&E
Restructuring Cost and Reserve [Line Items]
Restructuring charges	(0.1)	$ 0.0	(1.3)	(0.1)
Lease impairment costs	$ (0.1)		$ (1.3)	$ (0.1)