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	$ 2,094	$ 1,426	$ 5,051	$ 5,318
Other comprehensive income/(loss) adjustments, net of tax:
Currency translation	(19)	(39)	(58)	(94)
Debt valuation adjustment	(13)		(75)
Pension and postretirement liabilities	1	36	(36)	(74)
Other comprehensive loss	(31)	(3)	(169)	(168)
Comprehensive income	$ 2,063	$ 1,423	$ 4,882	$ 5,150