Company-Sponsored Employee Benefit Plans (Employer Contributions) (Details) (USD $)	12 Months Ended
	Jun. 28, 2014	Jun. 29, 2013
Pension Benefits [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Employer contributions	$ 24,752,000	$ 93,562,000
Qualified Pension Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Employer contributions		70,000,000
Supplemental Executive Retirement Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Estimated contributions to defined benefit plans in next fiscal year	26,300,000
Other Postretirement Plans [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Employer contributions	(349,000)	49,000
Estimated contributions to defined benefit plans in next fiscal year	$ 300,000