Consolidated Statements of Comprehensive Income (Loss) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Statement of Comprehensive Income [Abstract]
Net earnings including noncontrolling interests	$ 383	$ 532	$ 876	$ 800
Other Comprehensive Income (Loss), before Tax
Foreign currency translation adjustment, before tax	177	35	(525)	0
Pension and other postretirement benefit liabilities adjustment, before tax	(4)	4	38	10
Deferred gain (loss) on hedging activities, before tax	38	70	(18)	(27)
Unrealized gain (loss) on investments, before tax	(20)	3	23	(7)
Other Comprehensive Income (Loss), Tax
Foreign currency translation adjustment, tax effect	(6)	0	26	1
Pension and other postretirement benefit liabilities adjustment, tax effect	0	(1)	(19)	(3)
Deferred gain (loss) on hedging activities, tax effect	(9)	(23)	12	10
Unrealized gain (loss) on investments, tax effect	(2)	0	(2)	3
Other Comprehensive Income (Loss), Net of Tax
Foreign currency translation adjustment, net of tax	171	35	(499)	1
Pension and other postretirement benefit liabilities adjustment, net of tax	(4)	3	19	7
Deferred gain (loss) on hedging activities, net of tax	29	47	(6)	(17)
Unrealized gain (loss) on investments, net of tax	(22)	3	21	(4)
Other comprehensive income (loss)	174	88	(465)	(13)
Comprehensive income (loss) including noncontrolling interests	557	620	411	787
Less: Comprehensive income (loss) attributable to noncontrolling interests	(3)	(1)	(4)	0
Comprehensive income (loss) attributable to controlling interests	$ 560	$ 621	$ 415	$ 787