Cost-Reduction Actions - Liabilities and Expected Future Payments Related to Work-Force Reduction Actions (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2023	Jun. 30, 2022	Jun. 30, 2023	Jun. 30, 2022
Restructuring Reserve [Roll Forward]
Additional provisions	$ 3.5	$ 3.1	$ 0.7	$ 6.1
Work-force Reductions
Restructuring Reserve [Roll Forward]
Balance at beginning of period			11.7
Additional provisions			6.5
Payments			(4.4)
Changes in estimates			(3.7)
Translation adjustments			0.1
Balance at end of period	10.2		10.2
Short-term	10.2		10.2
Work-force Reductions | U.S.
Restructuring Reserve [Roll Forward]
Balance at beginning of period			4.2
Additional provisions			1.8
Payments			(2.1)
Changes in estimates			(1.2)
Translation adjustments			0.0
Balance at end of period	2.7		2.7
Short-term	2.7		2.7
Work-force Reductions | International
Restructuring Reserve [Roll Forward]
Balance at beginning of period			7.5
Additional provisions			4.7
Payments			(2.3)
Changes in estimates			(2.5)
Translation adjustments			0.1
Balance at end of period	7.5		7.5
Short-term	$ 7.5		$ 7.5