Financial Instruments, Balance Sheet Location (Details) - USD ($) $ in Millions	Dec. 29, 2018	Jun. 30, 2018
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	$ 42.2	$ 49.7
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	0.3	1.2
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	21.1
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	$ 19.0	$ 21.3