Post Employment Plans - Net Periodic Pension Cost (Details) - USD ($) $ in Millions		12 Months Ended
		Jun. 27, 2015		Jun. 28, 2014
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost		$ 0.9	[1]	$ 0.0	[2]
Interest cost		2.4	[1]	1.4	[2]
Defined Benefit Plan, Expected Return on Plan Assets		(2.7)	[1]	(1.9)	[2]
Net actuarial (gain)/loss		1.0	[1]	0.7	[2]
Net periodic pension cost		1.6	[1]	0.2	[2]
Postretirement Medical Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans Table Text Block [Line Items]
Defined Benefit Plan, Service Cost		0.3	[1]	0.5
Interest cost		0.2	[1]	0.3
Defined Benefit Plan, Expected Return on Plan Assets		0.0	[1]	0.6
Net actuarial (gain)/loss	[1]	0.1
Net periodic pension cost		$ 0.6	[1]	$ 1.4

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

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