Segment information (Details) - USD ($) $ in Thousands	3 Months Ended		9 Months Ended
	Mar. 31, 2018	Apr. 01, 2017	Mar. 31, 2018	Apr. 01, 2017
Sales, by segment
Sales	$ 4,795,093	$ 4,441,896	$ 13,977,672	$ 12,833,559
Operating income (expense):
Restructuring, integration and other expenses (Note 14)	(25,120)	(35,513)	(108,277)	(95,382)
Impairment of goodwill	(181,440)		(181,440)
Amortization of acquired intangible assets and other	(22,725)	(22,497)	(70,187)	(34,704)
Operating income	(54,401)	114,283	102,572	368,027
Segment
Operating income (expense):
Operating income	202,104	197,149	541,978	572,879
Electronic Components
Operating income (expense):
Impairment of goodwill			(181,440)
Operating income	157,713	156,831	427,162	508,587
Electronic Components | Segment
Sales, by segment
Sales	4,404,115	4,090,943	12,874,885	12,213,389
Premier Farnell
Operating income (expense):
Operating income	44,391	40,318	114,816	64,292
Premier Farnell | Segment
Sales, by segment
Sales	390,978	350,953	1,102,787	620,170
Business Support | Corporate
Operating income (expense):
Corporate	$ (27,220)	$ (24,856)	$ (79,502)	$ (74,766)