Inventories consisted of the following components at June 30, 2016 and 2015:

    

		June 30,
($ in millions)		2016				2015
Raw materials and supplies		$	137.6			$	121.7
Work in process		298.9				346.1
Finished and purchased products		192.2				188.0
Total inventory		$	628.7			$	655.8