Accumulated Other Comprehensive Income (Details) - USD ($) $ in Millions	12 Months Ended
	Jan. 01, 2017	Jan. 03, 2016	Dec. 28, 2014
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	$ 71,150	$ 69,752	$ 74,053
Net change	(1,736)	(2,443)	(7,862)
Ending Balance	70,418	71,150	69,752
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(8,435)	(4,803)	(202)
Net change	(612)	(3,632)	(4,601)
Ending Balance	(9,047)	(8,435)	(4,803)
Gain/(Loss) On Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	604	257	106
Net change	(193)	347	151
Ending Balance	411	604	257
Employee Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(5,298)	(6,317)	(3,009)
Net change	(682)	1,019	(3,308)
Ending Balance	(5,980)	(5,298)	(6,317)
Gain/ (Loss) On Derivatives & Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(36)	141	245
Net change	(249)	(177)	(104)
Ending Balance	(285)	(36)	141
Accumulated Other Comprehensive Income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance	(13,165)	(10,722)	(2,860)
Net change	(1,736)	(2,443)	(7,862)
Ending Balance	$ (14,901)	$ (13,165)	$ (10,722)