Inventories (Detail) - USD ($) $ in Millions	Sep. 30, 2015	Dec. 31, 2014
Inventory [Line Items]
Raw materials and supplies	$ 312.5	$ 250.0
Work-in-process	92.6	71.0
Finished goods	1,679.4	1,183.7
Total inventories	$ 2,084.5	$ 1,504.7