Consolidated Statements of Comprehensive Income / (Loss) - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings/(loss)	$ 210.3	$ 15.2	$ (49.7)
Other comprehensive income/(loss), net of tax
Foreign currency translation adjustments	(144.0)	32.4	(47.9)
Defined benefit pension plan	(6.4)	(15.5)	8.7
Deferred compensation/(benefit)	0.6	1.7	0.8
Earnings/(loss) on derivatives for the period	0.0	0.0	24.5
Other comprehensive income/(loss), net of tax	(149.8)	18.6	(13.9)
Comprehensive income/(loss)	60.5	33.8	(63.6)
Comprehensive Income (Loss), Net of Tax, Attributable to Noncontrolling Interest	(1.9)	(0.6)	(0.1)
Comprehensive income/(loss) attributable to Catalent	$ 62.4	$ 34.4	$ (63.5)