Supplemental Balance Sheet Information Related to Leases (Details) - USD ($) $ in Millions	Jun. 30, 2020	Dec. 31, 2019
Leases [Abstract]
Right-of-use operating lease assets	$ 145.0	$ 167.5
Finance Lease, Right-of-Use Asset	5.3	2.4
Lease, Right-Of-Use Asset	150.3	169.9
Operating lease liabilities	54.5	62.8
Finance Lease, Liability, Current	1.6	0.9
Operating Lease, Liability, Noncurrent	91.8	106.4
Finance Lease, Liability, Noncurrent	3.5	1.4
Lease Liability	$ 151.4	$ 171.5