Condensed Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings	$ 1,598	$ 1,239	$ 4,562	$ 3,627
Foreign currency translation adjustments, net of tax (benefit) expense of $10 for the three months and $30 for the nine months ended September 30, 2016 and $10 for the three months and $(98) for the nine months ended September 30, 2015.	31	(48)	164	(464)
Pension and post-employment benefits, net of tax expense of $8 for the three months and $23 for the nine months ended September 30, 2016 and $10 for the three months and $28 for the nine months ended September 30, 2015.	15	23	48	91
Unrealized gains (losses) on marketable equity securities, net of tax (benefit) expense of $1 for the three months and $(7) for the nine months ended September 30, 2016 and $3 for the three months and $2 for the nine months ended September 30, 2015.	12	(13)	19	(4)
Hedging activities, net of tax expense (benefit) of $1 for the three months and $(3) for the nine months ended September 30, 2016 and $(5) for the three months and $(7) for the nine months ended September 30, 2015.	(8)	(87)	(10)	(91)
Other comprehensive income (loss)	50	(125)	221	(468)
Comprehensive income	$ 1,648	$ 1,114	$ 4,783	$ 3,159