Consolidated Statements of Comprehensive Income (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2019	Sep. 30, 2018	Sep. 30, 2019	Sep. 30, 2018
Statement of Comprehensive Income [Abstract]
Net earnings	$ 466	$ 590	$ 1,358	$ 1,485
Other comprehensive income (loss), net of tax:
Marketable securities	0	0	1	(1)
Pension plans	13	(3)	2	(1)
Unrealized gains (losses) on designated hedges	(15)	6	(28)	23
Financial statement translation	79	(50)	103	(72)
Total other comprehensive income (loss), net of tax	77	(47)	78	(51)
Comprehensive income	$ 543	$ 543	$ 1,436	$ 1,434