Consolidated Statements of Operations - USD ($) $ in Millions	12 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2015
Income Statement [Abstract]
Net revenue	$ 2,075.4	$ 1,848.1	$ 1,830.8
Cost of sales	1,420.8	1,260.5	1,215.5
Gross margin	654.6	587.6	615.3
Selling, general and administrative expenses	402.6	358.1	337.3
Gain (Loss) on Sale of Assets and Asset Impairment Charges	(9.8)	(2.7)	(4.7)
Restructuring, Settlement and Impairment Provisions	8.0	9.0	13.4
Operating earnings	234.2	217.8	259.9
Interest expense, net	90.1	88.5	105.0
Nonoperating Income (Expense)	(8.5)	15.6	(42.4)
Earnings from continuing operations before income taxes	135.6	144.9	112.5
Income tax expense/(benefit)	25.8	33.7	(97.7)
Earnings from continuing operations	109.8	111.2	210.2
Net earnings/(loss) from discontinued operations, net of tax	0.0	0.0	0.1
Net earnings	109.8	111.2	210.3
Less: Net (loss) attributable to noncontrolling interest, net of tax	0.0	(0.3)	(1.9)
Net earnings attributable to Catalent	$ 109.8	$ 111.5	$ 212.2
Earnings Per Share, Basic	$ 0.88	$ 0.89	$ 1.77
Earnings Per Share, Diluted	$ 0.87	$ 0.89	$ 1.75