Other Financial Data (Property, Plant And Equipment, Net) (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jul. 02, 2016	Jul. 04, 2015	Jul. 02, 2016	Jul. 04, 2015	Feb. 19, 2016	Dec. 31, 2015
Property, Plant and Equipment, Net [Abstract]
Land	$ 16		$ 16			$ 17
Building	543		543			523
Machinery and equipment	1,897		1,897			1,585
Property, plant and equipment, gross	2,456		2,456			2,125
Less accumulated depreciation	(1,678)		(1,678)			(1,638)
Property, plant and equipment, net	778		778			$ 487
Depreciation expense	44	$ 38	92	$ 77
Building impairment	17	$ 0	17	$ 0
Guardian Digital Communications Limited (GDCL)
Property, Plant and Equipment, Net [Abstract]
Property, plant and equipment, net					$ 245
Disposal Group, Not Discontinued Operations | Penang, Malaysia Manufacturing Operations
Property, Plant and Equipment, Net [Abstract]
Loss on sale of manufacturing operations			$ 7
ILLINOIS
Property, Plant and Equipment, Net [Abstract]
Building impairment	$ 17