Pension and Retirement Plans (Details 1) (USD $) In Thousands, unless otherwise specified	12 Months Ended
	Jul. 02, 2011	Jul. 03, 2010	Jun. 27, 2009
Components of net periodic pension costs
Service cost	$ 23,874		$ 16,205
Interest cost	13,918	15,748	18,175
Expected return on plan assets	(27,560)	(30,137)	(26,539)
Recognized net actuarial loss	8,938	5,687	2,325
Amortization of prior service credit	(1,875)	(4,884)
Net periodic pension cost	17,295	(13,586)	10,166
Estimated future benefit payments
2012	26,463
2013	20,405
2014	20,619
2015	19,258
2016	20,625
2016 through 2021	$ 112,041
Plan's assets are held in trust and were allocated
Equity securities	76.00%	74.00%
Debt securities	24.00%	25.00%
Cash and receivables	0.00%	1.00%