|
Goodwill and Intangible Assets - Goodwill (Details) (USD $)
In Millions, unless otherwise specified |
Sep. 30, 2013
|
Dec. 31, 2012
|
|---|---|---|
| Goodwill [Abstract] | ||
| Total Goodwill | $ 69,891 | $ 69,976 |
|
Consumer & Business Banking Segment [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 31,681 | 31,681 |
|
Global Banking Segment [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 22,377 | 22,377 |
|
Global Markets [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 5,197 | 5,181 |
|
Global Wealth & Investment Management [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 9,698 | 9,698 |
|
All Other [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 938 | 1,039 |
|
Dealer Financial Services [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | 1,700 | |
|
International Wealth Management Businesses [Member]
|
||
| Goodwill [Abstract] | ||
| Total Goodwill | $ 230 |