Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2017	Jan. 01, 2017	Jan. 03, 2016
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,300	$ 16,540	$ 15,409
Other Comprehensive Income (Loss), net of tax
Foreign currency translation	1,696	(612)	(3,632)
Securities
Unrealized holding gain (loss) arising during period	159	(52)	471
Reclassifications to earnings	(338)	(141)	(124)
Net change	(179)	(193)	347
Employee benefit plans
Prior service credit (cost), net of amortization	2	21	(60)
Gain (loss), net of amortization	29	(862)	931
Effect of exchange rates	(201)	159	148
Net change	(170)	(682)	1,019
Derivatives & hedges
Unrealized gain (loss) arising during period	(4)	(359)	(115)
Reclassifications to earnings	359	110	(62)
Net change	355	(249)	(177)
Other comprehensive income (loss)	1,702	(1,736)	(2,443)
Total comprehensive income	$ 3,002	$ 14,804	$ 12,966