Segment information (Details Textuals) (USD $) In Thousands, unless otherwise specified	3 Months Ended		6 Months Ended
	Dec. 29, 2012	Dec. 31, 2011	Dec. 29, 2012	Dec. 31, 2011	Jun. 30, 2012
Segment Reporting Information [Line Items]
Sales	$ 6,699,465	$ 6,693,573	$ 12,569,522	$ 13,119,579
Property, plant and equipment, net	491,936		491,936		461,230
United States [Member]
Segment Reporting Information [Line Items]
Sales	2,480,000	2,630,000	4,650,000	5,030,000
Property, plant and equipment, net	269,800		269,800		266,700
Germany [Member]
Segment Reporting Information [Line Items]
Sales	733,400	632,700	1,290,000	1,360,000
Property, plant and equipment, net	99,400		99,400		90,600
Belgium [Member]
Segment Reporting Information [Line Items]
Property, plant and equipment, net	36,800		36,800		26,400
United kingdom [Member]
Segment Reporting Information [Line Items]
Sales	311,600	382,000	599,300	740,200
Property, plant and equipment, net	17,800		17,800		17,300
Taiwan [Member]
Segment Reporting Information [Line Items]
Sales	627,200	471,200	1,170,000	982,300
China [Member]
Segment Reporting Information [Line Items]
Sales	615,200	581,500	1,240,000	1,160,000
Singapore [Member]
Segment Reporting Information [Line Items]
Sales	$ 285,800	$ 288,100	$ 575,900	$ 593,900