Inventories (Tables)

9 Months Ended

Mar. 31, 2020

Inventory, Net [Abstract]

Schedule of inventories

Inventories consisted of the following components as of March 31, 2020 and June 30, 2019:

($ in millions)	March 31, 2020		June 30, 2019
Raw materials and supplies	$	238.6	$	169.8
Work in process	436.1		425.7
Finished and purchased products	194.3		192.2
Total inventories	$	869.0	$	787.7