Accumulated Other Comprehensive Income (Loss) (Details) - USD ($) $ in Millions		12 Months Ended
		Dec. 30, 2018	Dec. 31, 2017	Jan. 01, 2017
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		$ 60,160	$ 70,418	$ 71,150
Net change		(1,791)	1,702	(1,736)
Cumulative adjustment	[1]	(486)
Ending Balance		59,752	60,160	70,418
Foreign Currency Translation
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		(7,351)	(9,047)	(8,435)
Net change		(1,518)	1,696	(612)
Ending Balance		(8,869)	(7,351)	(9,047)
Gain/(Loss) On Securities
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		232	411	604
Net change		0	(179)	(193)
Cumulative adjustment		(232)
Ending Balance		0	232	411
Employee Benefit Plans
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		(6,150)	(5,980)	(5,298)
Net change		(8)	(170)	(682)
Ending Balance		(6,158)	(6,150)	(5,980)
Gain/ (Loss) On Derivatives & Hedges
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		70	(285)	(36)
Net change		(265)	355	(249)
Ending Balance		(195)	70	(285)
Accumulated Other Comprehensive Income
AOCI Including Portion Attributable to Noncontrolling Interest, Net of Tax [Roll Forward]
Beginning Balance		(13,199)	(14,901)	(13,165)
Net change		(1,791)	1,702	(1,736)
Cumulative adjustment	[1]	(232)
Ending Balance		$ (15,222)	$ (13,199)	$ (14,901)

[1] (1) See Note 1 to Consolidated Financial Statements for additional details on the effect of cumulative adjustments to retained earnings.