Segment information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 30, 2019	Mar. 31, 2018	Mar. 30, 2019	Mar. 31, 2018
Sales, by segment
Sales	$ 4,698,824	$ 4,795,093	$ 14,837,683	$ 13,977,672
Operating income (expense):
Restructuring, integration and other expenses	(2,939)	(25,120)	(79,986)	(108,277)
Impairment of goodwill		(181,440)		(181,440)
Amortization of acquired intangible assets and other	(22,080)	(22,725)	(63,520)	(70,187)
Operating income (loss)	153,085	(58,494)	395,951	87,691
Segment
Operating income (expense):
Operating income (loss)	198,970	199,875	599,871	535,407
Electronic Components | Segment
Sales, by segment
Sales	4,331,351	4,404,115	13,722,890	12,874,885
Operating income (expense):
Operating income (loss)	153,319	157,713	473,783	427,162
Premier Farnell | Segment
Sales, by segment
Sales	367,473	390,978	1,114,793	1,102,787
Operating income (expense):
Operating income (loss)	45,651	42,162	126,088	108,245
Business Support | Corporate
Operating income (expense):
Corporate	$ (20,866)	$ (29,084)	$ (60,414)	$ (87,812)