Goodwill and Other Intangible Assets Goodwill (Details) - USD ($)	3 Months Ended	12 Months Ended
	Jun. 27, 2015	Jun. 27, 2015	Jun. 28, 2014	Jun. 29, 2013
Goodwill [Line Items]
Research and Development Asset Acquired, Written-off		$ 0	$ 6,000,000	$ 9,000,000
Impairment of Intangible Assets, Finite-lived		0	0
Goodwill [Roll Forward]
Beginning balance		3,474,100,000	1,089,200,000
Business acquisitions		1,517,900,000	2,350,000,000
Goodwill impairment charge	$ (6,800,000)	(6,800,000)	0	0
Currency translation adjustment		(300,000)	34,900,000
Purchase Accounting Adjustments		(13,000,000)
Ending balance	4,971,900,000	4,971,900,000	3,474,100,000	1,089,200,000
CHC [Member]
Goodwill [Roll Forward]
Beginning balance		1,916,400,000	611,600,000
Business acquisitions		4,800,000	1,297,200,000
Goodwill impairment charge		(6,800,000)
Currency translation adjustment		(9,700,000)	7,600,000
Purchase Accounting Adjustments		(7,200,000)
Ending balance	1,897,500,000	1,897,500,000	1,916,400,000	611,600,000
BCH [Member]
Goodwill [Roll Forward]
Beginning balance		0	0
Business acquisitions		1,513,100,000	0
Goodwill impairment charge		0
Currency translation adjustment		38,800,000	0
Purchase Accounting Adjustments		0
Ending balance	1,551,900,000	1,551,900,000	0	0
Rx Pharmaceuticals [Member]
Goodwill [Roll Forward]
Beginning balance		1,258,300,000	385,400,000
Business acquisitions		0	851,000,000
Goodwill impairment charge		0
Currency translation adjustment		(20,000,000)	21,900,000
Purchase Accounting Adjustments		(4,700,000)
Ending balance	1,233,600,000	1,233,600,000	1,258,300,000	385,400,000
Specialty Sciences [Member]
Goodwill [Roll Forward]
Beginning balance		201,800,000	0
Business acquisitions		0	201,800,000
Goodwill impairment charge		0
Currency translation adjustment		0	0
Purchase Accounting Adjustments		(1,100,000)
Ending balance	200,700,000	200,700,000	201,800,000	0
Other [Member]
Goodwill [Roll Forward]
Beginning balance		97,600,000	92,200,000
Business acquisitions		0	0
Goodwill impairment charge		0
Currency translation adjustment		(9,400,000)	5,400,000
Purchase Accounting Adjustments		0
Ending balance	88,200,000	88,200,000	97,600,000	$ 92,200,000
Elan Corporation [Member]
Goodwill [Line Items]
Amount of goodwill allocated to other business segments			2,100,000,000
Goodwill [Roll Forward]
Beginning balance		2,300,000,000
Ending balance	2,333,100,000	2,333,100,000	2,300,000,000
Elan Corporation [Member] | CHC [Member]
Goodwill [Roll Forward]
Ending balance	1,287,400,000	1,287,400,000
Elan Corporation [Member] | Rx Pharmaceuticals [Member]
Goodwill [Roll Forward]
Ending balance	845,100,000	845,100,000
Elan Corporation [Member] | Specialty Sciences [Member]
Goodwill [Roll Forward]
Ending balance	$ 200,600,000	200,600,000
Aspen Global [Member] | CHC [Member]
Goodwill [Roll Forward]
Beginning balance		4,600,000
Ending balance			$ 4,600,000
MEXICO | CHC [Member]
Goodwill [Roll Forward]
Goodwill impairment charge		$ (6,800,000)