Segment Information, Geographic and Product Data - Schedule of Net Sales by Geographic Segment (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Jun. 30, 2016	Mar. 31, 2016	Dec. 31, 2015	Sep. 30, 2015	Jun. 30, 2015	Mar. 31, 2015	Dec. 31, 2014	Sep. 30, 2014	Jun. 30, 2016	Jun. 30, 2015	Jun. 30, 2014
Geographic Data
Net sales	$ 457.7	$ 456.3	$ 443.8	$ 455.6	$ 558.0	$ 570.6	$ 548.4	$ 549.8	$ 1,813.4	$ 2,226.7	$ 2,173.0
United States
Geographic Data
Net sales									1,243.5	1,579.9	1,537.9
Europe
Geographic Data
Net sales									321.4	359.6	349.5
Asia Pacific
Geographic Data
Net sales									129.5	141.8	137.1
Canada
Geographic Data
Net sales									44.9	61.2	65.3
Mexico
Geographic Data
Net sales									46.7	59.2	59.2
Other
Geographic Data
Net sales									$ 27.4	$ 25.0	$ 24.0