Business Segments (Details Textual) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Jun. 27, 2014	Jun. 28, 2013	Jun. 29, 2012
Business Segments (Textuals)
Number of business segments	3
Revenue earned from any individual foreign country	not exceeded 3 percent of total revenue	not exceeded 3 percent of total revenue	not exceeded 3 percent of total revenue
US government customer sales as percentage of total revenue	67.00%	67.00%	70.00%
Depreciation and amortization for intangible assets, capitalized software and debt issuance costs	$ 62.2	$ 77.8	$ 82.2
Export Revenue	1,059.4	892.1	955.8
Charge for restructuring and other actions		126.7
Loss on prepayment of long-term debt	0	33.2	0
R F Communications [Member]
Business Segments (Textuals)
Revenue from services (In Percentage)	8.00%
Charge for restructuring and other actions		9.2
Government Communications Systems [Member]
Business Segments (Textuals)
Revenue from services (In Percentage)	18.00%
Charge for restructuring and other actions		10.5
Integrated Network Solutions [Member]
Business Segments (Textuals)
Revenue from services (In Percentage)	97.00%
Charge for integration and other acquisition-related costs			58.2
Charge for restructuring and other actions		52.5
Corporate [Member]
Business Segments (Textuals)
Charge for restructuring and other actions		21.3
United Kingdom [Member]
Revenues from External Customers and Long-Lived Assets [Line Items]
Long-lived assets	$ 30.3