Segment information (Details) - USD ($) $ in Thousands	12 Months Ended
	Jul. 01, 2017	Jul. 02, 2016	Jun. 27, 2015
Sales, by segment
Sales	$ 17,439,963	$ 16,740,597	$ 17,655,319
Operating income (expense):
Operating income (expense) before restructuring charges, integration, amortization of acquired intangible assets, and other	760,800	728,700	832,600
Restructuring, integration and other expenses (Note 14)	(137,415)	(44,761)	(41,848)
Amortization of acquired intangible assets and other	(54,500)	(9,800)	(18,100)
Operating income	461,400	572,912	653,146
Assets:
Assets	9,699,589	11,239,805	10,800,000
Capital expenditures:
Purchases of property, plant and equipment	120,397	137,375	133,356
Depreciation & amortization expense:
Depreciation and amortization expense	155,400	79,600	82,200
Corporate
Operating income (expense):
Operating income (expense) before restructuring charges, integration, amortization of acquired intangible assets, and other	(107,500)	(101,200)	(119,600)
Assets:
Assets	1,084,000	608,800	693,300
Capital expenditures:
Purchases of property, plant and equipment	23,100	36,500	33,300
Depreciation & amortization expense:
Depreciation and amortization expense	37,300	34,700	37,000
Electronic Components
Sales, by segment
Sales	16,474,100	16,740,600	17,655,300
Capital expenditures:
Purchases of property, plant and equipment	81,600	100,900	100,100
Depreciation & amortization expense:
Depreciation and amortization expense	64,400	44,900	45,200
Electronic Components | Segment
Operating income (expense):
Operating income (expense) before restructuring charges, integration, amortization of acquired intangible assets, and other	661,000	728,700	832,600
Assets:
Assets	7,126,000	7,163,100	6,706,100
Premier Farnell
Sales, by segment
Sales	965,900
Capital expenditures:
Purchases of property, plant and equipment	15,700
Depreciation & amortization expense:
Depreciation and amortization expense	53,700
Premier Farnell | Segment
Operating income (expense):
Operating income (expense) before restructuring charges, integration, amortization of acquired intangible assets, and other	99,800
Assets:
Assets	$ 1,489,600
Disposal Group, Held-for-sale, Not Discontinued Operations | TS Business
Assets:
Assets of discontinued operations		$ 3,467,949	$ 3,400,600