Employee Benefit Plans (Details) (USD $)	3 Months Ended
	Oct. 01, 2011	Oct. 02, 2010
Pension Benefits [Member]
Service cost	$ 27,055,000	$ 24,861,000
Interest cost	36,879,000	33,744,000
Expected return on plan assets	(40,401,000)	(32,980,000)
Amortization of prior service cost	1,201,000	989,000
Amortization of net actuarial loss (gain)	15,041,000	19,988,000
Amortization of transition obligation	0	0
Net pension costs/ Net other postretirement benefit costs	39,775,000	46,602,000
Employer contributions	5,700,000	5,000,000
Other Postretirement Plans [Member]
Service cost	114,000	99,000
Interest cost	158,000	131,000
Expected return on plan assets	0	0
Amortization of prior service cost	54,000	47,000
Amortization of net actuarial loss (gain)	(83,000)	(97,000)
Amortization of transition obligation	38,000	38,000
Net pension costs/ Net other postretirement benefit costs	281,000	218,000
Estimated contributions to defined benefit plans in current fiscal year	300,000
Qualified pension plan [Member]
Employer contributions made in prior year that would normally have been made in current fiscal year	140,000,000
Supplemental Executive Retirement Plan [Member]
Estimated contributions to defined benefit plans in current fiscal year	$ 23,100,000