Segment information (Details) - USD ($) $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Jan. 02, 2021	Dec. 28, 2019
Sales, by segment
Sales	$ 4,668,172	$ 4,534,806	$ 9,391,232	$ 9,164,814
Operating income:
Restructuring, integration and other expenses	(11,948)	(14,265)	(38,369)	(38,863)
Amortization of acquired intangible assets and other	(10,417)	(21,454)	(30,592)	(41,532)
Operating income	57,221	46,475	75,723	109,212
Segment
Operating income:
Operating income	118,514	113,098	214,913	247,189
Corporate
Operating income:
Corporate	(38,928)	(30,904)	(70,229)	(57,582)
Electronic Components | Segment
Sales, by segment
Sales	4,342,386	4,203,629	8,724,535	8,497,815
Operating income:
Operating income	103,922	93,144	188,362	205,430
Farnell | Segment
Sales, by segment
Sales	325,786	331,177	666,697	666,999
Operating income:
Operating income	$ 14,592	$ 19,954	$ 26,551	$ 41,759