Inventories (Tables)

9 Months Ended

Mar. 31, 2016

Inventory, Net [Abstract]

Schedule of inventories

Inventories consisted of the following components as of March 31, 2016 and June 30, 2015:

($ in millions)	March 31, 2016		June 30, 2015
Raw materials and supplies	$	142.8	$	121.7
Work in process	316.3		346.1
Finished and purchased products	190.3		188.0
Total inventory	$	649.4	$	655.8