Consolidated Statements of Operations - USD ($) shares in Thousands, $ in Thousands	12 Months Ended
	Jun. 27, 2020	Jun. 29, 2019	Jun. 30, 2018
Income Statement [Abstract]
Sales	$ 17,634,333	$ 19,518,592	$ 19,036,892
Revenue, Product and Service [Extensible List]	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember
Cost of sales	$ 15,570,877	$ 17,032,490	$ 16,509,708
Cost, Product and Service [Extensible List]	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember	us-gaap:TechnologyServiceMember
Gross profit	$ 2,063,456	$ 2,486,102	$ 2,527,184
Selling, general and administrative expenses	1,842,122	1,874,651	1,991,401
Goodwill and intangible asset impairment expenses	144,092	137,396	181,440
Restructuring, integration and other expenses	81,870	108,144	145,125
Operating (loss) income	(4,628)	365,911	209,218
Other (expense) income, net	(737)	11,231	28,606
Interest and other financing expenses, net	(122,742)	(134,874)	(92,747)
Income (loss) from continuing operations before taxes	(128,107)	242,268	145,077
Income tax (benefit) expense	(98,574)	62,157	287,966
Income (loss) from continuing operations, net of tax	(29,533)	180,111	(142,889)
Loss from discontinued operations, net of tax	(1,548)	(3,774)	(13,535)
Net (loss) income	$ (31,081)	$ 176,337	$ (156,424)
Earnings (loss) per share:
Basic (loss) earnings per share-continuing operations	$ (0.29)	$ 1.64	$ (1.19)
Basic loss per share-discontinued operations	(0.02)	(0.03)	(0.11)
Basic (loss) earnings per share	(0.31)	1.61	(1.30)
Diluted (loss) earnings per share-continuing operations	(0.29)	1.63	(1.19)
Diluted loss per share-discontinued operations	(0.02)	(0.04)	(0.11)
Diluted (loss) earnings per share	$ (0.31)	$ 1.59	$ (1.30)
Shares used to compute earnings per share:
Basic	100,474	109,820	119,909
Diluted	100,474	110,798	119,909
Cash dividends paid per common share	$ 0.84	$ 0.80	$ 0.74