Financial Instruments, Balance Sheet Location (Details) - USD ($) $ in Millions	Mar. 25, 2017	Jun. 25, 2016
Derivatives designated as hedging instruments [Member] | Cash Flow Hedging [Member] | Forward contracts held to purchase U.S. dollars [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives	$ 41.1	$ 68.0
Derivatives designated as hedging instruments [Member] | Cash Flow Hedging [Member] | Forward contracts held to sell U.S. dollars [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives	1.4	2.6
Derivatives not designated as hedging instruments [Member] | Forward contracts held to purchase U.S. dollars [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives	19.8	25.4
Derivatives not designated as hedging instruments [Member] | Forward contracts held to sell U.S. dollars [Member]
Derivatives, Fair Value [Line Items]
Notional amount of derivatives	$ 16.9	$ 24.6