Post Employment Plans - Changes in Fair Value of Level 3 Pension Plan Assets (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 27, 2015		Jun. 28, 2014
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets	[1]	$ 49.9
Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning	[1]	99.6
Fair value of plan assets, ending	[1]	133.3		$ 99.6
Level 3 [Member]
Defined Benefit Plan Disclosure [Line Items]
Defined Benefit Plan, Business Combinations and Acquisitions, Plan Assets		31.5	[1]	0.7	[2]
Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning	[2]	0.8
Unrealized gains		(0.4)	[1]	0.1	[2]
Fair value of plan assets, ending		31.9	[1]	0.8	[2]
Assets [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, ending		133.3
Assets [Member] | Level 3 [Member]
Change in Fair Value of Plan Assets [Roll Forward]
Fair value of plan assets, beginning	[1]	0.8
Fair value of plan assets, ending		$ 31.9		$ 0.8	[1]

[1] *Includes Omega activity from March 30, 2015 to June 27, 2015

[2] **Includes Elan activity from December 18, 2013 to June 28, 2014.