Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	12 Months Ended
	Dec. 31, 2016	Dec. 31, 2015	Dec. 31, 2014
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 1,288	$ 1,846	$ 2,253
Other Comprehensive Income (Loss), Before tax
Foreign currency translation adjustment, before tax	(467)	(962)	(954)
Pension and other postretirement benefit liabilities adjustment, before tax	(1)	154	(464)
Deferred gain (loss) on hedging avtivities, before tax	33	(99)	68
Unrealized gain (loss) on investments, before tax	3	20	(5)
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	(10)	(11)	30
Pension and other postretirement benefit liabilities adjustment, tax effect	3	(47)	164
Deferred gain (loss) on hedging activities, tax effect	(12)	37	(26)
Unrealized gain (loss) on investments, tax effect	(2)	2	2
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	(477)	(973)	(924)
Pension and other postretirement benefit liabilities adjustment, net of tax	2	107	(300)
Deferred gain (loss) on hedging activities, net of tax	21	(62)	42
Unrealized gain (loss) on investments, net of tax	1	22	(3)
Other comprehensive income (loss)	(453)	(906)	(1,185)
Comprehensive income (loss)	835	940	1,068
Less: Comprehensive income (loss) attributable to noncontrolling interests	8	(4)	4
Comprehensive income (loss) attributable to controlling interests	$ 827	$ 944	$ 1,064