Business Segment Information (Geographic Area) (Details) - USD ($) $ in Thousands	3 Months Ended								12 Months Ended
	Jul. 02, 2016	Mar. 26, 2016	Dec. 26, 2015	Sep. 26, 2015	Jun. 27, 2015	Mar. 28, 2015	Dec. 27, 2014	Sep. 27, 2014	Jul. 02, 2016	Jun. 27, 2015	Jun. 28, 2014
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales	$ 13,647,891	$ 12,002,791	$ 12,153,626	$ 12,562,611	$ 12,401,938	$ 11,746,659	$ 12,087,074	$ 12,445,081	$ 50,366,919	$ 48,680,752	$ 46,516,712
Plant and equipment, net	3,880,442				3,982,143				3,880,442	3,982,143	3,985,618
U.S.
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									44,922,937	43,146,591	40,612,963
Plant and equipment, net	3,461,505				3,519,610				3,461,505	3,519,610	3,520,449
Canada
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									4,486,282	4,727,742	4,923,672
Plant and equipment, net	309,027				317,231				309,027	317,231	347,440
Other
Revenues from External Customers and Long-Lived Assets [Line Items]
Sales									957,700	806,419	980,077
Plant and equipment, net	$ 109,910				$ 145,302				$ 109,910	$ 145,302	$ 117,729