Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	3 Months Ended
	Mar. 31, 2013	Mar. 31, 2012
Statement of Other Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 270	$ 405
Other Comprehensive Income (Loss), Before tax
Foreign currency translation adjustment, before tax	(154)	218
Pension and other postretirement benefit liabilities adjustment, before tax	21	(168)
Deferred gain (loss) on hedging activities, before tax	11	(41)
Unrealized gain (loss) on investments, before tax	(37)	(7)
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	3	57
Pension and other postretirement benefit liabilities adjustment, tax effect	(1)	65
Deferred gain (loss) on hedging activities, tax effect	(4)	15
Unrealized gain (loss) on investments, tax effect	11	3
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	(151)	275
Pension and other postretirement benefit liabilities adjustment, net of tax	20	(103)
Deferred gain (loss) on hedging activities, net of tax	7	(26)
Unrealized gain (loss) on investments, net of tax	(26)	(4)
Net of tax amount	(150)	142
Comprehensive income (loss) including noncontrolling interest	120	547
Less: Comprehensive income (loss) attributable to noncontrolling interests	(8)	8
Comprehensive income (loss) attributable to controlling interests	$ 128	$ 539