Leases Assets and Liabilities, Lessee (Details) - USD ($) $ in Millions	Mar. 31, 2020	Dec. 31, 2019
Leases [Abstract]
Operating lease right-of-use assets	$ 144.8	$ 154.5
Current operating lease liabilities	46.5	46.6
Non-current operating lease liabilities	110.3	119.5
Operating Lease, Liability	156.8	166.1
Finance lease right-of-use assets	66.2	73.0
Current finance lease liabilities	32.6	34.5
Non-current finance lease liabilities	56.4	60.0
Total finance lease liabilities	$ 89.0	$ 94.5