Other Financial Data - Other Liabilities (Details) - USD ($) $ in Millions	Apr. 01, 2017	Dec. 31, 2016
Other Liabilities [Abstract]
Defined benefit plans	$ 1,795	$ 1,799
Deferred revenue	115	115
Unrecognized tax benefits	39	39
Deferred income taxes	140	121
Deferred consideration	74	72
Other	215	209
Other liabilities	$ 2,378	$ 2,355