Discontinued Operation (Details) (USD $)	12 Months Ended				3 Months Ended	9 Months Ended	12 Months Ended	3 Months Ended	9 Months Ended
	Jun. 29, 2012	Jul. 01, 2011	Jul. 02, 2010	Jun. 29, 2012 Cyber Integrated Solutions [Member]	Jun. 29, 2012 Broadcast Communications [Member]	Mar. 30, 2012 Broadcast Communications [Member]	Jun. 29, 2012 Broadcast Communications [Member]	Jun. 29, 2012 Broadcast Communications [Member] After-tax [Member]	Mar. 30, 2012 Broadcast Communications [Member] After-tax [Member]	Jun. 29, 2012 Discontinued Operations [Member]
Additional Discontinued Operation (Textuals) [Abstract]
Non-cash impairment charge	$ 585,600,000	$ 0	$ 0		$ 23,600,000	$ 424,000,000	$ 447,600,000	$ 10,500,000	$ 406,500,000
Impairment of goodwill	138,000,000			138,000,000			395,600,000
Employee termination costs				2,100,000
Other associated exit costs				2,500,000
Exit and disposal pre-tax charges				142,600,000
Exit and disposal charges after-tax				90,200,000
Exit and disposal after-tax charges per diluted share				0.78
Summarized financial information for our discontinued operations
Revenue from product sales and services	512,700,000	506,200,000	481,100,000
Loss before income taxes	(627,200,000)	(24,800,000)	(36,100,000)
Income Taxes	99,100,000	13,200,000	16,700,000
Discontinued operations, net of income taxes	(528,100,000)	(11,600,000)	(19,400,000)
Receivables										103,600,000
Inventories										128,000,000
Other current assets										9,400,000
Current assets, Total	632,700,000	0								241,000,000
Property, plant and equipment										89,000,000
Goodwill										267,700,000
Other non-current assets										35,000,000
Assets, total										632,700,000
Accounts payable										26,900,000
Accrued and other liabilities										109,300,000
Total liabilites										136,200,000
Net assets of discontinued operations										$ 496,500,000