Benefit Plans, Amounts Recognized in Consolidated Balance Sheet (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
Amounts Recognized in Balance Sheet [Abstract]
Current liability	$ (67.5)	$ (59.2)
Non-current liability	(20.5)	(51.7)
Pension Benefits [Member]
Amounts Recognized in Balance Sheet [Abstract]
Non-current asset	19.5	0.0
Current liability	(1.6)	(1.8)
Non-current liability	(18.9)	(49.7)
Recognized liability	(1.0)	(51.5)
Post-Retirement Benefits [Member]
Amounts Recognized in Balance Sheet [Abstract]
Non-current asset	0.0	0.0
Current liability	(0.1)	(0.1)
Non-current liability	(1.7)	(1.9)
Recognized liability	$ (1.8)	$ (2.0)