Segment information (Sales, by geographic area) (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Dec. 28, 2019	Dec. 29, 2018	Dec. 28, 2019	Dec. 29, 2018
Sales, by geographic area:
Sales	$ 4,534,806	$ 5,048,980	$ 9,164,814	$ 10,138,859
Americas
Sales, by geographic area:
Sales	1,186,582	1,300,423	2,402,339	2,572,216
United States
Sales, by geographic area:
Sales	1,120,000	1,210,000	2,260,000	2,390,000
EMEA
Sales, by geographic area:
Sales	1,425,859	1,668,575	2,896,782	3,383,492
Germany
Sales, by geographic area:
Sales	537,600	648,500	1,120,000	1,330,000
Belgium
Sales, by geographic area:
Sales	281,600	276,200	559,400	556,300
Asia Pacific
Sales, by geographic area:
Sales	1,922,365	2,079,982	3,865,693	4,183,151
Taiwan
Sales, by geographic area:
Sales	867,800	926,100	1,740,000	1,810,000
China (including Hong Kong)
Sales, by geographic area:
Sales	611,800	668,400	1,240,000	1,360,000
SINGAPORE
Sales, by geographic area:
Sales	$ 243,800	$ 261,900	$ 483,400	$ 542,300