Consolidated Balance Sheets (Parenthetical) - USD ($) $ in Thousands	Sep. 26, 2015	Jun. 27, 2015	Sep. 27, 2014
Statement of Financial Position [Abstract]
Allowance for doubtful accounts	$ 46,470	$ 41,720	$ 60,879
Preferred stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Preferred stock, authorized (in shares)	1,500,000	1,500,000	1,500,000
Preferred stock, issued (in shares)	0	0	0
Common stock, par value (in dollars per share)	$ 1	$ 1	$ 1
Common stock, authorized (in shares)	2,000,000,000	2,000,000,000	2,000,000,000
Common stock, issued (in shares)	765,174,900	765,174,900	765,174,900
Treasury stock (in shares)	169,052,528	170,857,231	177,897,055