Non-U.S. Activities (Schedule Of Results From Non-U.S. Operations) (Details) (USD $) In Millions, unless otherwise specified	3 Months Ended		9 Months Ended
	Sep. 30, 2013	Sep. 30, 2012	Sep. 30, 2013	Sep. 30, 2012
Segment Reporting Information [Line Items]
Total fee revenue	$ 1,883	$ 1,719	$ 5,711	$ 5,282
Net interest revenue	546	619	1,718	1,916
Gains (losses) related to investment securities, net	(4)	18	(9)	2
Total revenue	2,425	2,356	7,420	7,200
Expenses	1,722	1,415	5,346	5,022
Income before income tax expense	703	941	2,074	2,179
Income tax expense	163	267	491	588
Net income	540	674	1,583	1,591
Non- U.S. [Member]
Segment Reporting Information [Line Items]
Total fee revenue	771	700	2,347	2,169
Net interest revenue	306	240	874	709
Gains (losses) related to investment securities, net	(2)	(4)	(12)	(36)
Total revenue	1,075	936	3,209	2,842
Expenses	786	708	2,279	2,226
Income before income tax expense	289	228	930	616
Income tax expense	74	57	228	153
Net income	$ 215	$ 171	$ 702	$ 463