Benefit Plans, Amounts Recognized in Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Amounts Recognized in Balance Sheet [Abstract]
Current liability	$ (59.2)	$ (55.3)
Non-current liability	(51.7)	(63.5)
Pension Benefits [Member]
Amounts Recognized in Balance Sheet [Abstract]
Current liability	(1.8)	(1.7)
Non-current liability	(49.7)	(61.8)
Recognized liability	(51.5)	(63.5)
Post-Retirement Benefits [Member]
Amounts Recognized in Balance Sheet [Abstract]
Current liability	(0.1)	(0.1)
Non-current liability	(1.9)	(1.7)
Recognized liability	$ (2.0)	$ (1.8)