Goodwill (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 29, 2012	Jul. 01, 2011
Changes in the carrying amount of goodwill
Goodwill, net of impairment losses, Beginning Balance	$ 2,381.4	$ 1,576.2
Goodwill acquired during the period		786.9
Goodwill reclassified to discontinued operations	(678.4)
Currency translation adjustments	(15.2)	18.5
Other (including true-ups of previously estimated purchase price allocations)	7.5	(0.2)
Goodwill, net of impairment losses, Ending Balance	1,695.3	2,381.4
RF Communications [Member]
Changes in the carrying amount of goodwill
Goodwill, net of impairment losses, Beginning Balance	424.4	422.6
Goodwill acquired during the period		0
Goodwill reclassified to discontinued operations	0
Currency translation adjustments	(1.6)	1.8
Other (including true-ups of previously estimated purchase price allocations)	0	0
Goodwill, net of impairment losses, Ending Balance	422.8	424.4
Integrated Network Solutions [Member]
Changes in the carrying amount of goodwill
Goodwill, net of impairment losses, Beginning Balance	1,664.1	861.5
Goodwill acquired during the period		786.9
Goodwill reclassified to discontinued operations	(678.4)
Currency translation adjustments	(13.5)	15.9
Other (including true-ups of previously estimated purchase price allocations)	7.5	(0.2)
Goodwill, net of impairment losses, Ending Balance	979.7	1,664.1
Government Communications Systems [Member]
Changes in the carrying amount of goodwill
Goodwill, net of impairment losses, Beginning Balance	292.9	292.1
Goodwill acquired during the period		0
Goodwill reclassified to discontinued operations	0
Currency translation adjustments	(0.1)	0.8
Other (including true-ups of previously estimated purchase price allocations)	0	0
Goodwill, net of impairment losses, Ending Balance	$ 292.8	$ 292.9