Non-U.S. Activities (Schedule Of Results From Non-U.S. Operations) (Details) (USD $) In Millions	3 Months Ended		9 Months Ended
	Sep. 30, 2011	Sep. 30, 2010	Sep. 30, 2011	Sep. 30, 2010
Total fee revenue	$ 1,844	$ 1,569	$ 5,527	$ 4,805
Net interest revenue	578	724	1,727	2,043
Gains related to investment securities, net	5	17	25	62
Total revenue	2,427	2,310	7,279	6,910
Expenses	1,798	1,527	5,274	5,050
Income before income taxes	629	782	2,004	1,834
Income tax expense	74	236	465	361
Net income	555	546	1,539	1,473
Non-U.S. Operations Activities [Member]
Total fee revenue	758	676	2,293	1,998
Net interest revenue	300	184	877	519
Gains related to investment securities, net	(4)	(2)	(13)	48
Total revenue	1,054	858	3,157	2,565
Expenses	809	688	2,485	2,113
Income before income taxes	245	170	672	452
Income tax expense	63	64	173	170
Net income	182	106	499	282
U.K. Operations Activities [Member]
Total revenue	$ 516		$ 1,010