Discontinued Operation (Details) (USD $) In Millions, except Per Share data, unless otherwise specified	3 Months Ended		9 Months Ended
	Mar. 30, 2012	Apr. 01, 2011	Mar. 30, 2012	Apr. 01, 2011	Jul. 01, 2011
Summarized financial information for our discontinued operations
Revenue from product sales and services	$ 1.3	$ 0.5	$ 11.7	$ 1.8
Loss before income taxes	(150.9)	(2.7)	(165.5)	(9.7)
Income taxes	53.1	0.3	58.8	2.5
Discontinued operations, net of income taxes	(97.8)	(2.4)	(106.7)	(7.2)
Assets of Disposal Group, Including Discontinued Operation, Current	0		0		2.3
Assets of Disposal Group, Including Discontinued Operation	49.0		49.0		166.2
Liabilities of Disposal Group, Including Discontinued Operation, Current	10.4		10.4		9.5
Liabilities of Disposal Group, Including Discontinued Operation	10.4		10.4		9.5
Net assets of discontinued operations	38.6		38.6		156.7
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Exit and disposal after tax charges per diluted share	$ 0.80
Cyber Integrated Solutions [Member]
Income Statement, Balance Sheet and Additional Disclosures by Disposal Groups, Including Discontinued Operations [Line Items]
Impairment of goodwill and other long-lived assets	138.0
Employee termination costs	1.7
Other associated exit costs	2.4
Exit and disposal pre-tax charges	142.1
Exit and disposal after tax charges	$ 89.8