Impairment of Long-Lived Assets (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
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of		$ 2.7	$ 22.2	$ 67.0	$ 11.6
Sensing Solutions [Member]
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of	$ 45.2
Other [Member]
Long Lived Assets Held-for-sale [Line Items]
Impairment of long-lived assets to be disposed of				$ 21.8