Property, Plant and Equipment - Property, Plant and Equipment at Cost and Accumulated Depreciation (Details) - USD ($) $ in Millions	Dec. 30, 2018	Dec. 31, 2017
Property, Plant and Equipment, Net [Abstract]
Land and land improvements	$ 807	$ 829
Buildings and building equipment	11,176	11,240
Machinery and equipment	25,992	25,949
Construction in progress	3,876	3,448
Total property, plant and equipment, gross	41,851	41,466
Less accumulated depreciation	24,816	24,461
Total property, plant and equipment, net	$ 17,035	$ 17,005