Inventories (Tables)

3 Months Ended

Sep. 30, 2019

Inventory, Net [Abstract]

Schedule of inventories

Inventories consisted of the following components as of September 30, 2019 and June 30, 2019:

($ in millions)	September 30, 2019		June 30, 2019
Raw materials and supplies	$	194.3	$	169.8
Work in process	459.2		425.7
Finished and purchased products	184.1		192.2
Total inventory	$	837.6	$	787.7