Inventories - Schedule of the components of inventories (Details) - USD ($) $ in Millions	Dec. 31, 2015	Dec. 31, 2014
Inventories — gross:
Raw materials	$ 226.0	$ 226.2
Work-in-process	135.0	103.7
Finished goods	347.2	414.8
Total inventories — gross	708.2	744.7
Excess and obsolete inventory reserve	(69.7)	(64.0)
Net inventories at FIFO cost	638.5	680.7
Excess of FIFO costs over LIFO value	(40.0)	(36.2)
Inventories — net	$ 598.5	$ 644.5