|
Variable Interest Entities And Securitization Activities (Fair Value Of Assets And Liabilities) (Details) (USD $)
In Millions |
Jun. 30, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Interests purchased in the secondary market (fair value) | $ 4,643 | $ 4,735 |
|
Special Purpose Entities [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member]
|
||
| Retained interests (fair value) | ||
| Interests purchased in the secondary market (fair value) | ||
| Derivative assets (fair value) | ||
| Derivative liabilities (fair value) | ||
|
Special Purpose Entities [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Investment Grade [Member]
|
||
| Retained interests (fair value) | ||
| Interests purchased in the secondary market (fair value) | ||
|
Special Purpose Entities [Member] | Quoted Prices In Active Markets For Identical Assets (Level 1) [Member] | Non-Investment Grade [Member]
|
||
| Retained interests (fair value) | ||
| Interests purchased in the secondary market (fair value) | ||
|
Special Purpose Entities [Member] | Significant Observable Inputs (Level 2) [Member]
|
||
| Retained interests (fair value) | 1,952 | 2,973 |
| Interests purchased in the secondary market (fair value) | 1,166 | 1,184 |
| Derivative assets (fair value) | 815 | 887 |
| Derivative liabilities (fair value) | 274 | 360 |
|
Special Purpose Entities [Member] | Significant Observable Inputs (Level 2) [Member] | Investment Grade [Member]
|
||
| Retained interests (fair value) | 1,832 | 2,732 |
| Interests purchased in the secondary market (fair value) | 911 | 929 |
|
Special Purpose Entities [Member] | Significant Observable Inputs (Level 2) [Member] | Non-Investment Grade [Member]
|
||
| Retained interests (fair value) | 120 | 241 |
| Interests purchased in the secondary market (fair value) | 255 | 255 |
|
Special Purpose Entities [Member] | Significant Unobservable Inputs (Level 3) [Member]
|
||
| Retained interests (fair value) | 1,653 | 2,395 |
| Interests purchased in the secondary market (fair value) | 187 | 24 |
| Derivative assets (fair value) | 514 | 221 |
| Derivative liabilities (fair value) | 38 | 63 |
|
Special Purpose Entities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Investment Grade [Member]
|
||
| Retained interests (fair value) | 7 | 22 |
| Interests purchased in the secondary market (fair value) | 8 | 8 |
|
Special Purpose Entities [Member] | Significant Unobservable Inputs (Level 3) [Member] | Non-Investment Grade [Member]
|
||
| Retained interests (fair value) | 1,646 | 2,373 |
| Interests purchased in the secondary market (fair value) | 179 | 16 |
|
Special Purpose Entities [Member] | Balance [Member]
|
||
| Retained interests (fair value) | 3,605 | 5,368 |
| Interests purchased in the secondary market (fair value) | 1,353 | 1,208 |
| Derivative assets (fair value) | 1,329 | 1,108 |
| Derivative liabilities (fair value) | 312 | 423 |
|
Special Purpose Entities [Member] | Balance [Member] | Investment Grade [Member]
|
||
| Retained interests (fair value) | 1,839 | 2,754 |
| Interests purchased in the secondary market (fair value) | 919 | 937 |
|
Special Purpose Entities [Member] | Balance [Member] | Non-Investment Grade [Member]
|
||
| Retained interests (fair value) | 1,766 | 2,614 |
| Interests purchased in the secondary market (fair value) | $ 434 | $ 271 |