|
Securitizations and Variable Interest Entities, Significant Continuing Involvement - Unconsolidated VIEs (Details) (USD $)
In Millions, unless otherwise specified |
Dec. 31, 2011
|
Dec. 31, 2010
|
|---|---|---|
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | $ 1,463,183 | $ 1,442,219 |
|
Conforming Residential Mortgage Backed Securities [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 1,135,629 | 1,068,737 |
|
Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 61,461 | 76,304 |
|
Commercial mortgage securitizations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 179,007 | 190,377 |
|
Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 11,240 | 20,046 |
|
Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 9,757 | 9,970 |
|
Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 9,606 | 12,055 |
|
Tax Credit Structures [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 19,257 | 20,981 |
|
Collateralized loan obligations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 12,191 | 13,196 |
|
Investment funds [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 6,318 | 10,522 |
|
Other securitizations and transactions [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Total VIE assets | 18,717 | 20,031 |
|
Debt and equity interests [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 39,799 | 42,766 |
| Maximum exposure to loss | 39,799 | 42,766 |
|
Debt and equity interests [Member] | Conforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 4,682 | 5,527 |
| Maximum exposure to loss | 4,682 | 5,527 |
|
Debt and equity interests [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,460 | 2,997 |
| Maximum exposure to loss | 2,460 | 2,997 |
|
Debt and equity interests [Member] | Commercial mortgage securitizations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 7,063 | 5,506 |
| Maximum exposure to loss | 7,063 | 5,506 |
|
Debt and equity interests [Member] | Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 1,107 | 1,436 |
| Maximum exposure to loss | 1,107 | 1,436 |
|
Debt and equity interests [Member] | Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 9,511 | 9,689 |
| Maximum exposure to loss | 9,511 | 9,689 |
|
Debt and equity interests [Member] | Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 6,942 | 6,556 |
| Maximum exposure to loss | 6,942 | 6,556 |
|
Debt and equity interests [Member] | Tax Credit Structures [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 4,119 | 3,614 |
| Maximum exposure to loss | 4,119 | 3,614 |
|
Debt and equity interests [Member] | Collateralized loan obligations [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,019 | 2,804 |
| Maximum exposure to loss | 2,019 | 2,804 |
|
Debt and equity interests [Member] | Investment funds [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 1,416 |
| Maximum exposure to loss | 0 | 1,416 |
|
Debt and equity interests [Member] | Other securitizations and transactions [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 1,896 | 3,221 |
| Maximum exposure to loss | 1,896 | 3,221 |
|
Servicing assets [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 12,080 | 13,261 |
| Maximum exposure to loss | 12,080 | 13,261 |
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Servicing assets [Member] | Conforming Residential Mortgage Backed Securities [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 11,070 | 12,115 |
| Maximum exposure to loss | 11,070 | 12,115 |
|
Servicing assets [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 353 | 495 |
| Maximum exposure to loss | 353 | 495 |
|
Servicing assets [Member] | Commercial mortgage securitizations [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 623 | 608 |
| Maximum exposure to loss | 623 | 608 |
|
Servicing assets [Member] | Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Tax Credit Structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Collateralized loan obligations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Investment funds [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Servicing assets [Member] | Other securitizations and transactions [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 34 | 43 |
| Maximum exposure to loss | 34 | 43 |
|
Variable Interest Entity Derivatives [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 643 | 1,426 |
| Maximum exposure to loss | 2,487 | 4,434 |
|
Variable Interest Entity Derivatives [Member] | Conforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Variable Interest Entity Derivatives [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 1 | 6 |
| Maximum exposure to loss | 1 | 6 |
|
Variable Interest Entity Derivatives [Member] | Commercial mortgage securitizations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 349 | 261 |
| Maximum exposure to loss | 538 | 488 |
|
Variable Interest Entity Derivatives [Member] | Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 193 | 844 |
| Maximum exposure to loss | 874 | 2,850 |
|
Variable Interest Entity Derivatives [Member] | Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Variable Interest Entity Derivatives [Member] | Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (130) | (118) |
| Maximum exposure to loss | 130 | 118 |
|
Variable Interest Entity Derivatives [Member] | Tax Credit Structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Variable Interest Entity Derivatives [Member] | Collateralized loan obligations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 40 | 56 |
| Maximum exposure to loss | 41 | 56 |
|
Variable Interest Entity Derivatives [Member] | Investment funds [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Variable Interest Entity Derivatives [Member] | Other securitizations and transactions [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 190 | 377 |
| Maximum exposure to loss | 903 | 916 |
|
Other commitments and guarantees [Member]
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (2,463) | (2,170) |
| Maximum exposure to loss | 6,170 | 7,432 |
|
Other commitments and guarantees [Member] | Conforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (975) | (928) |
| Maximum exposure to loss | 3,657 | 4,248 |
|
Other commitments and guarantees [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (48) | (107) |
| Maximum exposure to loss | 295 | 233 |
|
Other commitments and guarantees [Member] | Commercial mortgage securitizations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Other commitments and guarantees [Member] | Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 7 |
|
Other commitments and guarantees [Member] | Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 0 | 0 |
|
Other commitments and guarantees [Member] | Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 1,504 | 2,175 |
|
Other commitments and guarantees [Member] | Tax Credit Structures [Member]
|
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| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (1,439) | (1,129) |
| Maximum exposure to loss | 0 | 1 |
|
Other commitments and guarantees [Member] | Collateralized loan obligations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 523 | 519 |
|
Other commitments and guarantees [Member] | Investment funds [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 0 |
| Maximum exposure to loss | 41 | 87 |
|
Other commitments and guarantees [Member] | Other securitizations and transactions [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | (1) | (6) |
| Maximum exposure to loss | 150 | 162 |
|
Net assets [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 50,059 | 55,283 |
| Maximum exposure to loss | 60,536 | 67,893 |
|
Net assets [Member] | Conforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 14,777 | 16,714 |
| Maximum exposure to loss | 19,409 | 21,890 |
|
Net assets [Member] | Other/Nonconforming Residential Mortgage Backed Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,766 | 3,391 |
| Maximum exposure to loss | 3,109 | 3,731 |
|
Net assets [Member] | Commercial mortgage securitizations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 8,035 | 6,375 |
| Maximum exposure to loss | 8,224 | 6,602 |
|
Net assets [Member] | Collateralized Debt Obligations Debt Securities [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 1,300 | 2,280 |
| Maximum exposure to loss | 1,981 | 4,293 |
|
Net assets [Member] | Collateralized Debt Obligations Loans [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 9,511 | 9,689 |
| Maximum exposure to loss | 9,511 | 9,689 |
|
Net assets [Member] | Asset-based finance structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 6,812 | 6,438 |
| Maximum exposure to loss | 8,576 | 8,849 |
|
Net assets [Member] | Tax Credit Structures [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,680 | 2,485 |
| Maximum exposure to loss | 4,119 | 3,615 |
|
Net assets [Member] | Collateralized loan obligations [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,059 | 2,860 |
| Maximum exposure to loss | 2,583 | 3,379 |
|
Net assets [Member] | Investment funds [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 0 | 1,416 |
| Maximum exposure to loss | 41 | 1,503 |
|
Net assets [Member] | Other securitizations and transactions [Member]
|
||
| Variable Interest Entity [Line Items] | ||
| Carrying value asset (liability) | 2,119 | 3,635 |
| Maximum exposure to loss | $ 2,983 | $ 4,342 |