Other Financial Data (Other Charges (Income)) (Details) - USD ($) $ in Millions	3 Months Ended								12 Months Ended
	Dec. 31, 2015	Oct. 03, 2015	Jul. 04, 2015	Apr. 04, 2015	Dec. 31, 2014	Sep. 27, 2014	Jun. 28, 2014	Mar. 29, 2014	Dec. 31, 2015	Dec. 31, 2014	Dec. 31, 2013
Other charges (income):
Intangibles amortization									$ 8	$ 4	$ 1
Reorganization of businesses									77	64	70
Legal settlement									0	8	0
Non-U.S. pension curtailment gain									(32)	0	0
Settlement of pension plan									0	1,917	0
Impairment of corporate aircraft									31	0	0
Gain on sale of building and land									0	(21)	0
Other charges (income):	$ 44	$ 42	$ (16)	$ 14	$ 1,924	$ 25	$ 34	$ (11)	$ 84	$ 1,972	$ 71