Inventories (Tables)

9 Months Ended

Sep. 30, 2016

Inventory Disclosure [Abstract]

Components of Inventories

The components of inventories were as follows (dollars in millions):

	September 30, 2016		December 31, 2015
Raw materials	$	259.8	$	260.6
Work in process	14.9		14.2
Finished goods	188.0		189.7
Supplies and materials	227.9		212.3
Inventories	$	690.6	$	676.8