Non-U.S. Activities - Schedule Of Results From Non-U.S. Operations (Details) - USD ($) $ in Millions	3 Months Ended		6 Months Ended
	Jun. 30, 2015	Jun. 30, 2014	Jun. 30, 2015	Jun. 30, 2014
Segment Reporting Information [Line Items]
Total fee revenue	$ 2,082	$ 2,039	$ 4,142	$ 3,963
Net interest revenue	535	561	1,081	1,116
Gains (losses) related to investment securities, net	(3)	(2)	(4)	4
Total revenue	2,614	2,598	5,219	5,083
Expenses	2,134	1,850	4,231	3,878
Income before income tax expense	478	746	982	1,201
Income tax expense	56	124	151	216
Net income	422	622	831	985
Non- U.S.
Segment Reporting Information [Line Items]
Total fee revenue	848	838	1,705	1,626
Net interest revenue	302	330	593	642
Gains (losses) related to investment securities, net	0	(1)	(1)	5
Total revenue	1,150	1,167	2,297	2,273
Expenses	799	819	1,604	1,671
Income before income tax expense	351	348	693	602
Income tax expense	84	81	162	142
Net income	$ 267	$ 267	$ 531	$ 460