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	$ 355	$ 301	$ 1,137	$ 917
Other comprehensive (loss) income, net of tax:
Marketable securities	0	0	0	(3)
Pension plans	(1)	0	(4)	10
Unrealized losses on designated hedges	0	(15)	(35)	(4)
Financial statement translation	(4)	(83)	78	(278)
Total other comprehensive (loss) income, net of tax	(5)	(98)	39	(275)
Comprehensive income	$ 350	$ 203	$ 1,176	$ 642