Other Non-Current Liabilities (Details) - USD ($) $ in Millions	Dec. 31, 2017	Dec. 31, 2016
Other Liabilities, Noncurrent [Abstract]
Pensions	$ 213.2	$ 208.3
Other post-employment benefits	24.6	24.0
Deferred tax liabilities	23.7	41.2
Other	118.0	68.2
TOTAL	$ 379.5	$ 341.7