Employee Benefit Costs (Narrative) (Details) (USD $)	12 Months Ended
	Jun. 29, 2014	Jun. 30, 2013	Jul. 01, 2012
Accumulated benefit obligation for defined benefit pension plans	$ 1,173,000,000	$ 1,115,000,000
Annual rate of increase in per capita cost of health care claims, current fiscal year	7.80%
Annual rate of increase in per capita cost of health care claims, ultimate trend rate	4.50%
Health care claims, year that ultimate trend rate reached	2028
Increase in accumulated postretirement benefit due to increase of one percentage point	1,900,000
Increase in service and interest cost due to increase of one percentage point	100,000
Decrease in accumulated postretirement benefit due to decrease of one percentage point	2,100,000
Decrease in service and interest cost due to decrease of one percentage point	100,000
Plan Curtailments		(1,914,000)	700,000
Required minimum contributions to qualified pension plan in fiscal 2014	0
Nonelective contribution percentage	2.00%
Employer Contributions	10,800,000	7,900,000	8,300,000
Pension Plans, Defined Benefit [Member]
Plan Curtailments	$ 0
Defined Benefit Plan, Assumptions Used Calculating Benefit Obligation, Discount Rate	4.40%	5.00%
DefinedContributionPlanAmendmentEffectiveJanuary2014 [Member]
Nonelective contribution percentage	3.00%
Minimum [Member]
Maximum percentage of participant salary matched	1.50%
Minimum [Member] | DefinedContributionPlanAmendmentEffectiveJanuary2014 [Member]
Maximum percentage of participant salary matched	3.50%
Maximum [Member]
Maximum percentage of participant salary matched	3.50%
Maximum [Member] | DefinedContributionPlanAmendmentEffectiveJanuary2014 [Member]
Maximum percentage of participant salary matched	4.00%