Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Statement of Other Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 481	$ 184	$ 977	$ 882
Other Comprehensive Income (Loss), before Tax
Foreign currency translation adjustment, before tax	225	145	(1)	101
Pension and other postretirement benefit liabilities adjustment, before tax	10	16	45	(560)
Deferred gain (loss) on hedging activities, before tax	16	54	18	87
Unrealized gain (loss) on investments, before tax	3	(11)	2	(36)
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	0	(7)	2	53
Pension and other postretirement benefit liabilities adjustment, tax effect	(4)	(7)	(16)	198
Deferred gain (loss) on hedging activities, tax effect	(7)	(18)	(7)	(31)
Unrealized gain (loss) on investments, tax effect	(3)	3	0	13
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	225	138	1	154
Pension and other postretirement benefit liabilities adjustment, net of tax	6	9	29	(362)
Deferred gain (loss) on hedging activities, net of tax	9	36	11	56
Unrealized gain (loss) on investments, net of tax	0	(8)	2	(23)
Other comprehensive income (loss)	240	175	43	(175)
Comprehensive income (loss) including noncontrolling interests	721	359	1,020	707
Less: Comprehensive income (loss) attributable to noncontrolling interests	5	4	0	13
Comprehensive income (loss) attributable to controlling interests	$ 716	$ 355	$ 1,020	$ 694