Supplemental Cash Flow Information (Schedule of Supplemental Cash Flow) (Details) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Supplemental Cash Flow Information [Abstract]
Interest paid, net of interest capitalized	$ 163.4	$ 38.0	$ 45.0
Interest received	22.0	7.0	1.4
Net income taxes paid	180.0	29.6	71.2
Non-cash purchase of property, plant and equipment under finance lease	12.7	13.4	7.7
Non-cash right of use assets obtained in exchange for new lease obligations	$ 188.7	$ 30.3	$ 13.9