Segment information (Sales, by geographic area) (Details) - USD ($) $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Sales, by geographic area:
Sales	$ 17,634,333	$ 19,518,592	$ 19,036,892
Americas
Sales, by geographic area:
Sales	4,755,300	5,135,800	5,011,400
United States
Sales, by geographic area:
Sales	4,460,000	4,800,000	4,640,000
EMEA
Sales, by geographic area:
Sales	5,753,400	6,762,900	6,790,900
Germany
Sales, by geographic area:
Sales	2,200,000	2,660,000	2,660,000
Belgium
Sales, by geographic area:
Sales	1,090,000	1,160,000	1,080,000
Asia Pacific
Sales, by geographic area:
Sales	7,125,600	7,619,900	7,234,600
Taiwan
Sales, by geographic area:
Sales	3,070,000	3,200,000	2,710,000
China (including Hong Kong)
Sales, by geographic area:
Sales	2,330,000	2,520,000	2,630,000
SINGAPORE
Sales, by geographic area:
Sales	$ 955,400	$ 1,020,000	$ 949,500