|
Derivatives - Sales and Trading Revenue (Details) (USD $)
In Millions, unless otherwise specified
|
3 Months Ended |
|
Mar. 31, 2013
|
Mar. 31, 2012
|
| Derivatives, Fair Value [Line Items] |
|
|
|
|
| Brokerage Commissions Revenue |
$ 528
|
|
$ 514
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
4,049
|
|
3,705
|
|
|
Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
2,889
|
|
2,037
|
|
|
Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
976
|
|
749
|
|
|
Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
184
|
[1] |
919
|
[1] |
|
Interest rate risk [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
982
|
|
320
|
|
|
Interest rate risk [Member] | Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
677
|
|
59
|
|
|
Interest rate risk [Member] | Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
292
|
|
271
|
|
|
Interest rate risk [Member] | Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
13
|
[1] |
(10)
|
[1] |
|
Foreign exchange risk [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
362
|
|
236
|
|
|
Foreign exchange risk [Member] | Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
370
|
|
232
|
|
|
Foreign exchange risk [Member] | Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
0
|
|
2
|
|
|
Foreign exchange risk [Member] | Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
(8)
|
[1] |
2
|
[1] |
|
Equity risk [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
1,159
|
|
911
|
|
|
Equity risk [Member] | Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
608
|
|
375
|
|
|
Equity risk [Member] | Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
15
|
|
7
|
|
|
Equity risk [Member] | Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
536
|
[1] |
529
|
[1] |
|
Credit risk [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
1,386
|
|
2,056
|
|
|
Credit risk [Member] | Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
1,038
|
|
1,142
|
|
|
Credit risk [Member] | Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
717
|
|
543
|
|
|
Credit risk [Member] | Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
(369)
|
[1] |
371
|
[1] |
|
Other risk [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
160
|
|
182
|
|
|
Other risk [Member] | Trading Account Profits [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
196
|
|
229
|
|
|
Other risk [Member] | Net Interest Income [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
(48)
|
|
(74)
|
|
|
Other risk [Member] | Other Income (Loss) [Member]
|
|
|
|
|
| Sales and Trading Revenue [Abstract] |
|
|
|
|
| Trading Activity, Gains and Losses, Net |
$ 12
|
[1] |
$ 27
|
[1] |
|
|
|