XML 45 R31.htm IDEA: XBRL DOCUMENT v3.10.0.1
Inventories (Tables)
 6 Months Ended
Jun. 30, 2018
Inventory Disclosure [Abstract]  
Components of Inventories

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

 

 

 

June 30,

 

 

December 31,

 

 

 

2018

 

 

2017

 

Raw materials

 

$

291.7

 

 

$

279.8

 

Work in process

 

 

15.1

 

 

 

12.6

 

Finished goods

 

 

197.6

 

 

 

217.0

 

Supplies and materials

 

 

259.3

 

 

 

253.1

 

Inventories

 

$

763.7

 

 

$

762.5