XML 65 R33.htm IDEA: XBRL DOCUMENT v3.19.3.a.u2
INVENTORIES (Tables)
12 Months Ended
Dec. 31, 2019
Inventory Disclosure [Abstract]  
Schedule of Inventory
 
 
December 31,
 ($ in millions)
 
2019
 
2018
Raw materials
 
$
53.4

 
$
46.4

Building materials for resale
 
3.6

 
2.8

Other
 
2.0

 
2.0

 Total
 
$
59.0

 
$
51.2