Business Segments - Geographic Information on Certain Long-Lived Assets (Details) - USD ($) $ in Millions	Dec. 31, 2023	Dec. 31, 2022	Dec. 31, 2021
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain long-lived assets	$ 8,225.1	$ 8,228.0	$ 8,127.9
United States
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain long-lived assets	6,555.0	6,562.8	6,371.4
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain long-lived assets	1,497.3	1,499.1	1,566.9
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain long-lived assets	$ 172.8	$ 166.1	$ 189.6