|
Securities Available for Sale Textuals (Details) (USD $)
In Millions, unless otherwise specified |
12 Months Ended | ||
|---|---|---|---|
|
Dec. 31, 2011
|
Dec. 31, 2010
|
Dec. 31, 2009
|
|
| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | $ 215,571 | $ 164,329 | |
| Fair value | 222,613 | 172,654 | |
| Gross unrealized losses | 3,169 | 2,711 | |
| OTTI | 541 | 692 | 1,094 |
|
Investment Grade [Member]
|
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| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 45,405 | 27,477 | |
| Gross unrealized losses | 1,859 | 1,480 | |
|
Unrated Investment Grade Securities [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 6,200 | 1,300 | |
| Gross unrealized losses | 207 | 83 | |
|
Non-investment Grade [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 8,147 | 7,177 | |
| Gross unrealized losses | 1,301 | 1,230 | |
|
Collateralized loan obligations [Member]
|
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| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | 8,100 | 4,000 | |
| Fair value | 8,100 | 4,200 | |
|
Residential [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | 16,997 | 18,294 | |
| Fair value | 17,836 | 20,203 | |
| Gross unrealized losses | 414 | 489 | |
| OTTI | 252 | 175 | 591 |
|
Residential [Member] | Investment Grade [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 2,503 | 888 | |
| Gross unrealized losses | 39 | 23 | |
| OTTI | 5 | 5 | 24 |
|
Residential [Member] | Non-investment Grade [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 4,717 | 4,575 | |
| Gross unrealized losses | 375 | 466 | |
| OTTI | 247 | 170 | 567 |
|
Asset-backed Securities Collateralized by Auto Leases [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | 6,700 | 6,200 | |
| Fair value | 6,700 | 6,400 | |
|
Asset-backed Securities Collateralized by Home Equity Loans [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | 846 | 927 | |
| Fair value | 932 | 1,100 | |
|
Federal agencies [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Cost | 92,279 | 78,578 | |
| Fair value | 96,754 | 82,037 | |
| Gross unrealized losses | 10 | 96 | |
|
Federal agencies [Member] | Securities we Intend to Sell [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 14,500 | ||
| OTTI | 252 | ||
|
Federal agencies [Member] | Investment Grade [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 3,019 | 8,163 | |
| Gross unrealized losses | 10 | 96 | |
|
Federal agencies [Member] | Non-investment Grade [Member]
|
|||
| Securities Available For Sale (Textual) [Abstract] | |||
| Fair value | 0 | 0 | |
| Gross unrealized losses | $ 0 | $ 0 | |