Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2017	Jun. 30, 2016	Jun. 30, 2017	Jun. 30, 2016
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 275	$ 288	$ 615	$ 518
Other Comprehensive Income (Loss), before Tax
Foreign currency translation adjustment, before tax	362	(218)	383	(16)
Pension and other postretirement benefit liabilities adjustment, before tax	7	15	19	16
Deferred gain (loss) on hedging activities, before tax	35	(21)	38	(11)
Unrealized gain (loss) on investments, before tax	1	45	(5)	12
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	33	(10)	36	13
Pension and other postretirement benefit liabilities adjustment, tax effect	(2)	(3)	(8)	(3)
Deferred gain (loss) on hedging activities, tax effect	(2)	2	(5)	0
Unrealized gain (loss) on investments, tax effect	0	(1)	0	(3)
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	395	(228)	419	(3)
Pension and other postretirement benefit liabilities adjustment, net of tax	5	12	11	13
Deferred gain (loss) on hedging activities, net of tax	33	(19)	33	(11)
Unrealized gain (loss) on investments, net of tax	1	44	(5)	9
Other comprehensive income (loss)	434	(191)	458	8
Comprehensive income (loss) including noncontrolling interests	709	97	1,073	526
Less: Comprehensive income (loss) attributable to noncontrolling interests	0	4	1	4
Comprehensive income (loss) attributable to controlling interests	$ 709	$ 93	$ 1,072	$ 522