Line of Business Information (Details) (USD $) In Millions, unless otherwise specified	12 Months Ended
	Dec. 31, 2013 line_of_business	Dec. 31, 2012	Dec. 31, 2011
Segment Reporting Information [Line Items]
Number of lines of business	2
Acquisition and restructuring costs	$ 104	$ 225	$ 269
Claims resolution	0	(362)	0
Servicing fees	4,819	4,414	4,382
Management fees	1,106	993	917
Trading services	1,061	1,010	1,220
Securities finance	359	405	378
Processing fees and other	245	266	297
Total fee revenue	7,590	7,088	7,194
Net interest revenue	2,303	2,538	2,333
Gains (losses) related to investment securities, net	(9)	23	67
Total revenue	9,884	9,649	9,594
Provision for loan losses	6	(3)	0
Total expenses	7,192	6,886	7,058
Income before income tax expense	2,686	2,766	2,536
Pre-tax margin	27.00%	29.00%	26.00%
Average assets	243,291	222,582
Investment Servicing
Segment Reporting Information [Line Items]
Servicing fees	4,819	4,414	4,382
Management fees	0	0	0
Trading services	994	912	1,131
Securities finance	324	363	333
Processing fees and other	238	259	284
Total fee revenue	6,375	5,948	6,130
Net interest revenue	2,221	2,464	2,231
Gains (losses) related to investment securities, net	(9)	69	67
Total revenue	8,587	8,481	8,428
Provision for loan losses	6	(3)	0
Total expenses	6,176	6,041	5,890
Income before income tax expense	2,405	2,443	2,538
Pre-tax margin	28.00%	29.00%	30.00%
Average assets	203,200	190,100	170,400
Investment Management
Segment Reporting Information [Line Items]
Servicing fees	0	0	0
Management fees	1,106	993	917
Trading services	67	98	89
Securities finance	35	42	45
Processing fees and other	7	7	13
Total fee revenue	1,215	1,140	1,064
Net interest revenue	82	74	102
Gains (losses) related to investment securities, net	0	0	0
Total revenue	1,297	1,214	1,166
Provision for loan losses	0	0	0
Total expenses	836	864	899
Income before income tax expense	461	350	267
Pre-tax margin	36.00%	29.00%	23.00%
Average assets	3,800	3,700	4,400
Other
Segment Reporting Information [Line Items]
Acquisition and restructuring costs	104	362	269
Provision for litigation exposure and other costs	65	118
Severance costs	11
Claims resolution		225
Servicing fees	0	0	0
Management fees	0	0	0
Trading services	0	0	0
Securities finance	0	0	0
Processing fees and other	0	0	0
Total fee revenue	0	0	0
Net interest revenue	0	0	0
Gains (losses) related to investment securities, net	0	(46)	0
Total revenue	0	(46)	0
Provision for loan losses	0	0	0
Total expenses	180	(19)	269
Income before income tax expense	(180)	(27)	(269)
Total Average Assets
Segment Reporting Information [Line Items]
Average assets	$ 207,000	$ 193,800	$ 174,800
Minimum | Investment Servicing and Investment Management
Segment Reporting Information [Line Items]
Concentration risk percentage	70.00%
Minimum | Other
Segment Reporting Information [Line Items]
Concentration risk percentage	25.00%
Maximum | Investment Servicing and Investment Management
Segment Reporting Information [Line Items]
Concentration risk percentage	75.00%
Maximum | Other
Segment Reporting Information [Line Items]
Concentration risk percentage	30.00%