Retirement Benefits - Amounts in Accumulated Other Comprehensive Income Loss Expected to be Recognized as Components of Net Periodic Benefit Cost (Details) - USD ($) $ in Millions	Dec. 31, 2022	Dec. 31, 2021
Pension Benefits | U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	$ 0.1	$ 0.1
Net loss (gain)	1.9	2.1
Total	2.0	2.2
Pension Benefits | Non-U.S.
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	(0.5)	(0.5)
Net loss (gain)	(5.5)	12.6
Total	(6.0)	12.1
Other Benefits
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Prior service cost (credit)	(0.4)	(0.5)
Net loss (gain)	(9.9)	(3.0)
Total	$ (10.3)	$ (3.5)