Other Noncurrent Liabilities (Details) - USD ($) $ in Millions	Jun. 30, 2022	Dec. 31, 2021
Other Liabilities Disclosure [Abstract]
Pension and retiree medical obligations	$ 78.9	$ 82.2
Transition tax payable	9.1	14.1
Deferred revenue	28.4	32.2
Lease liability	94.2	93.4
Other	19.9	25.5
Total other noncurrent liabilities	$ 230.5	$ 247.4