Segment information (Sales, by geographic area) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 29, 2019	Jun. 30, 2018	Jul. 01, 2017
Sales, by geographic area:
Sales	$ 19,518,592	$ 19,036,892	$ 17,439,963
Americas
Sales, by geographic area:
Sales	5,135,800	5,011,400	5,163,900
United States
Sales, by geographic area:
Sales	4,800,000	4,640,000	4,800,000
EMEA
Sales, by geographic area:
Sales	6,762,900	6,790,900	5,912,900
Germany
Sales, by geographic area:
Sales	2,660,000	2,660,000	2,290,000
Belgium
Sales, by geographic area:
Sales	1,160,000	1,080,000	930,300
Asia Pacific
Sales, by geographic area:
Sales	7,619,900	7,234,600	6,363,200
Taiwan
Sales, by geographic area:
Sales	3,200,000	2,710,000	2,180,000
China (including Hong Kong)
Sales, by geographic area:
Sales	2,520,000	2,630,000	2,450,000
SINGAPORE
Sales, by geographic area:
Sales	$ 1,020,000	$ 949,500	$ 928,400