Consolidated Statements of Comprehensive Income (Loss) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013	Dec. 31, 2012	Dec. 31, 2011
Statement of Comprehensive Income [Abstract]
Net earnings	$ 3,158	$ 2,866	$ 1,937
Other comprehensive income (loss) before income taxes:
Unrealized foreign currency translation gains (losses) during period	(1,588)	(287)	(18)
Unrealized gains (losses) on investment securities:
Unrealized holding gains (losses) on investment securities during period	(2,362)	1,660	566
Reclassification adjustment for realized (gains) losses on investment securities included in net earnings	(56)	497	1,154
Unrealized gains (losses) on derivatives during period	(10)	(22)	(33)
Pension liability adjustment during period	157	(20)	(65)
Total other comprehensive income (loss) before income taxes	(3,859)	1,828	1,604
Income tax expense (benefit) related to items of other comprehensive income (loss)	(581)	1,078	392
Other comprehensive income (loss), net of income taxes	(3,278)	750	1,212
Total comprehensive income (loss)	$ (120)	$ 3,616	$ 3,149