Employee Benefit Costs (Schedule of Income and Expense) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 01, 2018	Jul. 02, 2017	Jul. 03, 2016
Plan Settlements	$ 41,157	$ 0	$ 20,245
Pension Benefits [Member]
Service Cost-Benefits Earned During the Year	2,402	6,757	3,532
Interest Cost on Projected Benefit Obligation	43,068	43,357	52,110
Expected Return on Plan Assets	(61,912)	(64,427)	(71,202)
Amortization of Prior Service Cost (Credit)	179	180	180
Amortization of Actuarial Loss	15,332	16,957	13,007
Plan Settlements	41,157	0	20,245
Net Periodic Expense	40,226	2,824	17,872
Other Postretirement Benefits [Member]
Service Cost-Benefits Earned During the Year	135	191	262
Interest Cost on Projected Benefit Obligation	2,372	2,382	3,170
Expected Return on Plan Assets	0	0	0
Amortization of Prior Service Cost (Credit)	(1,434)	(2,654)	(2,659)
Amortization of Actuarial Loss	3,453	2,796	3,234
Plan Settlements	0	0	0
Net Periodic Expense	$ 4,526	$ 2,715	$ 4,007