Company-Sponsored Employee Benefit Plans (Assumptions) (Details)	12 Months Ended
	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Retirement Plan
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.07%	4.84%
Rate of compensation increase	2.62%	3.89%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	4.84%	4.74%	5.32%
Expected rate of return	7.25%	7.75%	7.75%
Rate of compensation increase	3.89%	3.89%	3.89%
Discount rate used to calculate next year benefit costs	4.07%
Expected rate of return on plan assets used in calculating net periodic benefit cost for next fiscal year	7.25%
Supplemental executive retirement plan
Weighted-average assumptions used to determine benefit obligations
Discount rate	3.91%	4.63%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	4.63%	4.59%	4.94%
Discount rate used to calculate next year benefit costs	3.91%
Other Postretirement Plans
Weighted-average assumptions used to determine benefit obligations
Discount rate	4.07%	4.84%
Weighted-average assumptions used in calculating net periodic benefit cost
Discount rate	4.84%	4.74%	5.32%
Discount rate used to calculate next year benefit costs	4.07%