Pension and Retirement Plans - Textuals (Details) $ in Thousands		12 Months Ended
	Jul. 02, 2017 USD ($)	Jul. 01, 2017 USD ($) item	Jul. 02, 2016 USD ($)
Defined Benefit Plan Disclosure [Line Items]
The minimum hours that must be worked in a year, in order that the employee becomes eligible to join the pension plan in the following year. | item		1,000
Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Unrecognized net actuarial losses, pre-tax		$ 234,863	$ 235,747
Unrecognized actuarial losses expected to be recognized in net periodic pension cost during following year		15,000
Unrecognized prior service credit, pre-tax		691	2,903
Unrecognized prior service credit Expected to be recognized net periodic pension cost during following year		1,600
Contributions		$ 33,750	$ 40,000
Pension Plan | Forecast
Defined Benefit Plan Disclosure [Line Items]
Defined benefit plans, estimated future employer contributions each remaining quarter of current fiscal year	$ 16,000
Equity securities | Pension Plan
Defined Benefit Plan Disclosure [Line Items]
Target allocation percentage of investments equity securities		60.00%