Consolidated Statements of Comprehensive Income - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2019	Jul. 01, 2018	Jun. 30, 2019	Jul. 01, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 5,607	$ 3,954	$ 9,356	$ 8,321
Other comprehensive income (loss), net of tax
Foreign currency translation	350	(2,190)	92	(1,567)
Securities:
Unrealized holding gain (loss) arising during period	1	0	1	0
Reclassifications to earnings	0	0	0	0
Net change	1	0	1	0
Employee benefit plans:
Prior service cost amortization during period	(5)	(5)	(12)	(11)
Gain (loss) amortization during period	142	190	318	382
Net change	137	185	306	371
Derivatives & hedges:
Unrealized gain (loss) arising during period	86	(61)	(216)	(225)
Reclassifications to earnings	(26)	(103)	70	75
Net change	60	(164)	(146)	(150)
Other comprehensive income (loss)	548	(2,169)	253	(1,346)
Comprehensive income	6,155	1,785	9,609	6,975
Other Comprehensive Income (Loss), Foreign Currency Translation Adjustment, Tax	106	(346)	44	(183)
Other Comprehensive (Income) Loss, Defined Benefit Plan, after Reclassification Adjustment, Tax	34	51	35	103
Other Comprehensive Income (Loss), Cash Flow Hedge, Gain (Loss), after Reclassification, Tax	$ 16	$ (44)	$ (39)	$ (40)