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Inventories
6 Months Ended
Jun. 30, 2012
Inventories [Abstract]  
Inventories
Note 6:  Inventories

Inventories are valued at the lower of standard cost (which approximates actual cost on a first-in-first-out basis) or market. Inventory balances were as follows:

 
June 30,
 
 
December 31,
 
($ in millions)
 
2012
 
 
2011
 
Finished goods
 
$
65.3
 
 
$
67.1
 
Work in process
 
 
25.3
 
 
 
19.6
 
Raw materials
 
 
68.6
 
 
 
65.1
 
 
$
159.2
 
 
$
151.8