Employee Benefit Costs (Schedule of Significant Assumptions Used In Determining Net Periodic (Income) Expense) (Details)	12 Months Ended
Jun. 30, 2019	Jul. 01, 2018	Jul. 02, 2017
Pension Benefits [Member]
Discount Rate	4.30%	4.00%	3.75%
Expected Return on Plan Assets	7.05%	7.10%	7.25%
Other Postretirement Benefits [Member]
Discount Rate	4.25%	3.85%	3.60%

Weighted average rate of return on plan assets, reflecting average rate of earnings expected on existing plan assets and expected contributions, used to determine net periodic benefit cost of defined benefit plan.

Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 20
-Section 50
-Paragraph 1
-Subparagraph (k)(3)
-URI http://asc.fasb.org/extlink&oid=108410482&loc=d3e1928-114920

Name:	us-gaap_DefinedBenefitPlanAssumptionsUsedCalculatingNetPeriodicBenefitCostExpectedLongTermReturnOnAssets
Namespace Prefix:	us-gaap_
Data Type:	num:percentItemType
Balance Type:	na
Period Type:	duration