Inventories (Tables)

3 Months Ended

Sep. 30, 2016

Inventory, Net [Abstract]

Schedule of inventories

Inventories consisted of the following components as of September 30, 2016 and June 30, 2016:

($ in millions)	September 30, 2016		June 30, 2016
Raw materials and supplies	$	147.8	$	137.6
Work in process	329.3		298.9
Finished and purchased products	184.5		192.2
Total inventory	$	661.6	$	628.7