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		$ 573	$ 810	$ 1,236	$ 1,542
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period		(170)	502	(161)	445
Unrealized gains (losses) on investment securities:
Unrealized holding gains (losses) on investment securities during period		(2,458)	1,482	(1,865)	2,881
Reclassification adjustment for realized (gains) losses on investment securities included in net earnings		(68)	11	(118)	9
Unrealized gains (losses) on derivatives during period		2	2	(2)	1
Pension liability adjustment during period		1	0	1	(1)
Total other comprehensive income (loss) before income taxes		(2,693)	1,997	(2,145)	3,335
Income tax expense (benefit) related to items of other comprehensive income (loss)		(868)	698	(673)	1,166
Other comprehensive income (loss), net of income taxes	[1]	(1,825)	1,299	(1,472)	2,169
Total comprehensive income (loss)		$ (1,252)	$ 2,109	$ (236)	$ 3,711

[1] All amounts in the table above are net of tax.