Inventories (Tables)

6 Months Ended

Jun. 30, 2019

Inventory Disclosure [Abstract]

Components of Inventories

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

	June 30,		December 31,
	2019		2018
Raw materials	$	303.5	$	307.8
Work in process		14.3		13.9
Finished goods		213.9		199.0
Supplies and materials		284.0		274.9
Inventories	$	815.7	$	795.6