Post-Retirement Benefits - Projected and Accumulated Benefit Obligations (Detail) - Foreign Plan - Japan	12 Months Ended
	Jun. 30, 2018	Jul. 01, 2017
Defined Benefit Plan Disclosure [Line Items]
Discount rate	0.30%	0.10%
Salary increase rate	2.20%	2.20%
Expected average remaining working life (in years)	14 years	14 years 3 months 18 days