Restructuring Charges (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended			12 Months Ended
	Jun. 28, 2014	Mar. 29, 2014	Dec. 28, 2013	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012	Jun. 26, 2010
Restructuring Reserve [Roll Forward]
Beginning balance				$ 2.9	$ 1.7	$ 0
Restructuring charges	10.5	19.5	14.9	47.0	2.9	8.8
Payments				(28.7)	(1.7)	(0.1)
Non-cash adjustments				(4.8)	0	(7.0)
Ending balance	16.4			16.4	2.9	1.7
Gain on sale of business							0.8
Income from discontinued operations, net of tax				0	0	8.6
Elan Corporation [Member]
Restructuring Reserve [Roll Forward]
Restructuring charges				41.2
Elan Corporation [Member] | Specialty Sciences [Member]
Restructuring Reserve [Roll Forward]
Restructuring charges				38.7
Severance [Member]
Restructuring Reserve [Roll Forward]
Beginning balance				2.9	1.7	0
Restructuring charges				36.8	2.9	1.8
Payments				(27.3)	(1.7)	(0.1)
Non-cash adjustments				0	0	0
Ending balance	12.4			12.4	2.9	1.7
Contract Terminations [Member]
Restructuring Reserve [Roll Forward]
Beginning balance				0	0	0
Restructuring charges				5.4	0	0
Payments				(1.4)	0	0
Non-cash adjustments				0	0	0
Ending balance	4.0			4.0	0	0
Asset Impairments [Member]
Restructuring Reserve [Roll Forward]
Beginning balance				0	0	0
Restructuring charges				4.8	0	7.0
Payments				0	0	0
Non-cash adjustments				(4.8)	0	(7.0)
Ending balance	$ 0			$ 0	$ 0	$ 0