Business Segment Information (Schedule of Long-Lived Asset by Geographic Area) (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022
Long-Lived Assets	$ 2,285.3	$ 1,998.6
Revenue from External Customer [Line Items]
Long-Lived Assets	2,285.3	1,998.6
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	2,285.3	1,998.6
UNITED STATES
Long-Lived Assets	1,618.6	1,413.8
Revenue from External Customer [Line Items]
Long-Lived Assets	1,618.6	1,413.8
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	1,618.6	1,413.8
Non-U.S. [Member]
Long-Lived Assets	666.7	584.8
Revenue from External Customer [Line Items]
Long-Lived Assets	666.7	584.8
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-Lived Assets	$ 666.7	$ 584.8