Definite Lived Long-Lived Assets - Other Intangible Assets Subject to Amortization (Detail) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2016	Jun. 30, 2015
Product Rights [Line Items]
Gross Carrying Value	$ 609.5	$ 659.7
Accumulated Amortization	(315.5)	(291.0)
Net Carrying Value	$ 294.0	$ 368.7
Core technology [Member]
Product Rights [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	18 years	18 years
Gross Carrying Value	$ 170.6	$ 177.6
Accumulated Amortization	(64.9)	(57.6)
Net Carrying Value	$ 105.7	$ 120.0
Customer relationships [Member]
Product Rights [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	14 years	14 years
Gross Carrying Value	$ 230.3	$ 259.2
Accumulated Amortization	(90.9)	(81.8)
Net Carrying Value	$ 139.4	$ 177.4
Product relationships [Member]
Product Rights [Line Items]
Acquired Finite-lived Intangible Assets, Weighted Average Useful Life	12 years	12 years
Gross Carrying Value	$ 208.6	$ 222.9
Accumulated Amortization	(159.7)	(151.6)
Net Carrying Value	$ 48.9	$ 71.3