Lease Obligations (Supplemental Balance Sheet) (Details) - USD ($) $ in Millions	Dec. 31, 2021	Dec. 31, 2020
Leases [Abstract]
Operating lease right-of-use assets	$ 192.6	$ 161.6
Current portion of operating lease liabilities	44.5	42.4
Operating lease liabilities	153.0	122.1
Total operating lease liabilities	197.5	164.5
Sundry	3.8	3.6
Current maturities of long-term debt	0.8	0.9
Long-term debt	2.9	2.7
Total finance lease liabilities	$ 3.7	$ 3.6
Finance Lease, Right-of-Use Asset, Statement of Financial Position [Extensible Enumeration]	Sundry	Sundry
Finance Lease, Liability, Noncurrent, Statement of Financial Position [Extensible Enumeration]	Long-term debt	Long-term debt
Finance Lease, Liability, Current, Statement of Financial Position [Extensible Enumeration]	Current maturities of long-term debt	Current maturities of long-term debt