Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2014	Sep. 30, 2013	Sep. 30, 2014	Sep. 30, 2013
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 748	$ 481	$ 1,548	$ 977
Other Comprehensive Income (Loss), before Tax
Foreign currency translation adjustment, before tax	(462)	225	(462)	(1)
Pension and other postretirement benefit liabilities adjustment, before tax	14	10	24	45
Deferred gain (loss) on hedging activities, before tax	59	16	32	18
Unrealized gain (loss) on investments, before tax	10	3	3	2
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	7	0	8	2
Pension and other postretirement benefit liabilities adjustment, tax effect	(4)	(4)	(7)	(16)
Deferred gain (loss) on hedging activities, tax effect	(23)	(7)	(13)	(7)
Unrealized gain (loss) on investments, tax effect	0	(3)	3	0
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	(455)	225	(454)	1
Pension and other postretirement benefit liabilities adjustment, net of tax	10	6	17	29
Deferred gain (loss) on hedging activities, net of tax	36	9	19	11
Unrealized gain (loss) on investments, net of tax	10	0	6	2
Other comprehensive income (loss)	(399)	240	(412)	43
Comprehensive income (loss) including noncontrolling interests	349	721	1,136	1,020
Less: Comprehensive income (loss) attributable to noncontrolling interests	1	5	1	0
Comprehensive income (loss) attributable to controlling interests	$ 348	$ 716	$ 1,135	$ 1,020