Financial Instruments, Balance Sheet Location (Details) - USD ($) $ in Millions	Jun. 30, 2018	Jun. 24, 2017
Forward contracts held to purchase U.S. dollars [Member] | Designated as hedging instruments [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Notional amount of total derivatives	$ 49.7	$ 36.2
Forward contracts held to purchase U.S. dollars [Member] | Not designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Notional amount of total derivatives	21.1	44.5
Forward contracts held to sell U.S. dollars [Member] | Designated as hedging instruments [Member] | Cash Flow Hedging [Member]
Derivatives, Fair Value [Line Items]
Notional amount of total derivatives	1.2	0.2
Forward contracts held to sell U.S. dollars [Member] | Not designated as hedging instruments [Member]
Derivatives, Fair Value [Line Items]
Notional amount of total derivatives	$ 21.3	$ 21.6