Company-Sponsored Employee Benefit Plans (Defined Contribution Plan) (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 28, 2014	Jun. 29, 2013	Jun. 30, 2012
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Defined contribution plans expense	$ 118.6	$ 65.3	$ 17.2
Safe Harbor 401(k) Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Non-elective employer contribution, Percent of Employees' Gross Pay	3.00%
Employer Matching Contribution, Percent of Match	50.00%
Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%
Safe Harbor 401(k) Plan Non Adopting Unions [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Employer Matching Contribution, Percent of Match	50.00%
Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Prior 401(k) Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Employer Matching Contribution, Percent of Match	50.00%
Employer Matching Contribution, Percent of Employees' Gross Pay	6.00%
Management Savings Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Non-elective employer contribution, Percent of Employees' Gross Pay	3.00%
Employer Matching Contribution, Percent of Match	50.00%
Employer Matching Contribution, Percent of Employees' Gross Pay	5.00%
Salary [Member] | Management Savings Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Allowable Deferral Amount, Percent of Employees' Gross Pay	50.00%
Bonus [Member] | Management Savings Plan [Member]
Defined Benefit Plans and Other Postretirement Benefit Plans [Line Items]
Allowable Deferral Amount, Percent of Employees' Gross Pay	100.00%