Multiemployer Employee Benefit Plans (Plan Contributions) (Details) - Multiemployer Defined Benefit Pension Plans - USD ($)	12 Months Ended
Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Multiemployer Plans [Line Items]
Multiemployer plan contributions	$ 41,047,000	$ 38,144,000	$ 76,029,000
Aggregate Multiemployer Plan Withdrawal Liability
Multiemployer Plans [Line Items]
Multiemployer plan contributions	0	1,400,000	40,800,000
Individually significant plans
Multiemployer Plans [Line Items]
Multiemployer plan contributions	33,787,000	32,097,000	30,402,000
All other plans
Multiemployer Plans [Line Items]
Multiemployer plan contributions	$ 7,260,000	$ 6,047,000	$ 45,627,000

Amount of contributions made to multiemployer plans by the employer. A multiemployer plan is a pension or postretirement benefit plan to which two or more unrelated employers contribute where assets contributed by one participating employer may be used to provide benefits to employees of other participating employers.

Reference 1: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 11
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450702-114947

Reference 2: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 9
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450691-114947

Reference 3: http://www.xbrl.org/2003/role/presentationRef
-Publisher FASB
-Name Accounting Standards Codification
-Topic 715
-SubTopic 80
-Section 50
-Paragraph 5
-Subparagraph (e)(1)
-URI http://asc.fasb.org/extlink&oid=65877416&loc=SL14450657-114947

Name:	us-gaap_MultiemployerPlanPeriodContributions
Namespace Prefix:	us-gaap_
Data Type:	xbrli:monetaryItemType
Balance Type:	debit
Period Type:	duration