Leases Supplemental Balance Sheet (Details) $ in Millions	Dec. 31, 2019 USD ($)
Operating Leases
Non-current operating lease assets	$ 490.7
Other current liabilities	118.6
Non-current operating lease liabilities	457.1
Total operating lease liabilities	575.7
Finance Lease Assets And Liabilities Lessee [Abstract]
Property and equipment, gross	55.3
Accumulated depreciation	36.7
Property and equipment, net	18.6
Short-term borrowings and current portion of long-term debt	10.7
Long-term debt	9.6
Total finance lease liabilities	$ 20.3
Weighted Average Remaining Lease Term (in years)
Operating leases	5 years 10 months 24 days
Finance leases	3 years 8 months 12 days
Weighted Average Discount Rate
Operating leases	5.90%
Finance leases	4.60%