Business Segments - Geographic Information on Certain Long-Lived Assets (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020	Dec. 31, 2019
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	$ 8,127.9	$ 8,269.0	$ 9,969.7
UNITED STATES
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	6,371.4	6,395.7	8,003.9
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	1,566.9	1,702.5	1,761.2
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Certain Long-Lived Assets	$ 189.6	$ 170.8	$ 204.6