Derivative Instruments and Hedging Activities - balance sheet location (Details) - USD ($) $ in Millions	Sep. 26, 2015	Jun. 27, 2015
Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	$ 2.3	$ 3.3
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	2.5	2.0
Designated as Hedging Instrument [Member] | Other Current Assets [Member] | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	2.3	3.3
Designated as Hedging Instrument [Member] | Accrued Liabilities [Member] | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	2.5	2.0
Not Designated as Hedging Instrument [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	3.4	2.6
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	2.5	9.1
Not Designated as Hedging Instrument [Member] | Other Current Assets [Member] | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Asset, Fair Value, Net	2.5	9.1
Not Designated as Hedging Instrument [Member] | Accrued Liabilities [Member] | Foreign Exchange Forward [Member]
Derivatives, Fair Value [Line Items]
Derivative Liability, Fair Value, Amount Not Offset Against Collateral	$ 3.4	$ 2.6