Consolidated Statement of Comprehensive Income (Loss) (Unaudited) - USD ($) $ in Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2016	Sep. 30, 2015	Sep. 30, 2016	Sep. 30, 2015
Statement of Comprehensive Income [Abstract]
Net earnings (loss)	$ 1,951	$ 2,545	$ 4,881	$ (12,198)
Less net earnings (loss) attributable to noncontrolling interests	(76)	39	(283)	229
Net earnings (loss) attributable to the Company	2,027	2,506	5,164	(12,427)
Other comprehensive income (loss)
Investment securities	97	(3)	715	(452)
Currency translation adjustments	(194)	624	(138)	(2,895)
Cash flow hedges	30	(35)	60	6
Benefit plans	548	627	1,481	4,486
Other comprehensive income (loss)	481	1,214	2,117	1,144
Less Other comprehensive income (loss) attributable to noncontrolling interests	(5)	8	(10)	45
Other comprehensive income (loss) attributable to the Company	477	1,221	2,107	1,189
Comprehensive income (loss)	2,432	3,759	6,998	(11,054)
Less Comprehensive income (loss) attributable to noncontrolling interests	(71)	31	(273)	184
Comprehensive income (loss) attributable to the Company	$ 2,504	$ 3,727	$ 7,271	$ (11,238)