CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME (LOSS) (Parentheticals) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2018	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net unrealized derivative gain (loss) on cash flow hedges, tax (benefit)	$ (2.2)	$ (7.7)	$ 0.3
Pension and other post-employment benefits adjustment, tax (benefit)	$ 1.5	$ (25.1)	$ 7.9