Summary of Significant Accounting Policies Property, Plant and Equipment (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended	12 Months Ended
	Dec. 27, 2014	Sep. 29, 2012	Dec. 29, 2012	Jun. 27, 2015	Jun. 28, 2014
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets to be disposed of		$ 2.7	$ 22.2	$ 67.0	$ 11.6
Building and Building Improvements [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment minimium useful life (in years)				40 years
Minimum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment minimium useful life (in years)				2 years
Maximum [Member] | Machinery and Equipment [Member]
Property, Plant and Equipment [Line Items]
Property, plant and equipment minimium useful life (in years)				15 years
Sensing Solutions [Member]
Property, Plant and Equipment [Line Items]
Impairment of long-lived assets to be disposed of	$ 45.2