|
Goodwill and Intangible Assets - Goodwill by Segment (Details) (USD $)
|
3 Months Ended | 12 Months Ended | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
|
Sep. 30, 2013
|
Sep. 30, 2012
|
Dec. 31, 2013
|
Dec. 31, 2012
|
Dec. 31, 2011
|
||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | $ 69,844,000,000 | $ 69,976,000,000 | ||||||||
| Goodwill impairment | 0 | 0 | [1] | [1] | 3,184,000,000 | [1] | ||||
|
Consumer & Business Banking [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 31,681,000,000 | 31,681,000,000 | ||||||||
| Goodwill impairment | ||||||||||
|
Global Wealth & Investment Management [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 9,698,000,000 | 9,698,000,000 | ||||||||
|
Global Commercial Banking [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 22,377,000,000 | 22,377,000,000 | ||||||||
|
Global Banking & Markets [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 5,197,000,000 | 5,181,000,000 | ||||||||
|
All Other [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 891,000,000 | 1,039,000,000 | ||||||||
| Goodwill impairment | 581,000,000 | |||||||||
|
Dealer Financial Services [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | 1,700,000,000 | |||||||||
|
International Wealth Management Businesses [Member]
|
||||||||||
| Goodwill [Line Items] | ||||||||||
| Total Goodwill | $ 230,000,000 | |||||||||
|
||||||||||