Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	3 Months Ended		6 Months Ended
	Jan. 02, 2021	Dec. 28, 2019	Jan. 02, 2021	Dec. 28, 2019
Income Statement [Abstract]
Sales	$ 4,668,172	$ 4,534,806	$ 9,391,232	$ 9,164,814
Revenue, Product and Service [Extensible List]	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember
Cost of sales	$ 4,156,919	$ 4,009,193	$ 8,363,899	$ 8,095,362
Cost, Product and Service [Extensible List]	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember
Gross profit	$ 511,253	$ 525,613	$ 1,027,333	$ 1,069,452
Selling, general and administrative expenses	442,084	464,873	913,241	921,377
Restructuring, integration and other expenses	11,948	14,265	38,369	38,863
Operating income	57,221	46,475	75,723	109,212
Other (expense) income, net	(1,333)	(1,963)	(20,831)	2,969
Interest and other financing expenses, net	(21,485)	(33,904)	(43,787)	(67,535)
Income before taxes	34,403	10,608	11,105	44,646
Income tax expense (benefit)	15,240	6,940	10,831	(774)
Net income	$ 19,163	$ 3,668	$ 274	$ 45,420
Earnings per share:
Basic	$ 0.19	$ 0.04	$ 0.00	$ 0.45
Diluted	$ 0.19	$ 0.04	$ 0.00	$ 0.44
Shares used to compute earnings per share:
Basic	98,937	100,431	98,917	101,781
Diluted	99,932	101,302	99,897	102,839
Cash dividends paid per common share	$ 0.21	$ 0.21	$ 0.42	$ 0.42