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Variable Interest Entities And Securitization Activities (Information Regarding SPEs) (Details) (USD $)
In Millions |
Jun. 30, 2011
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Dec. 31, 2010
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|---|---|---|---|---|---|---|
| Interests purchased in the secondary market (fair value) | $ 4,643 | $ 4,735 | ||||
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Special Purpose Entities [Member] | U.S. Agency Collateralized Mortgage Obligations [Member]
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| SPE assets (unpaid principal balance) | 33,188 | [1] | 29,748 | [1] | ||
| Retained interests (fair value) | 1,710 | 2,636 | ||||
| Interests purchased in the secondary market (fair value) | 133 | 155 | ||||
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Special Purpose Entities [Member] | U.S. Agency Collateralized Mortgage Obligations [Member] | Investment Grade [Member]
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| Retained interests (fair value) | 1,710 | 2,636 | ||||
| Interests purchased in the secondary market (fair value) | 133 | 155 | ||||
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Special Purpose Entities [Member] | Credit-Linked Notes And Other [Member]
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| SPE assets (unpaid principal balance) | 17,913 | [1] | 11,462 | [1] | ||
| Retained interests (fair value) | 1,477 | 2,335 | ||||
| Interests purchased in the secondary market (fair value) | 449 | 32 | ||||
| Derivative assets (fair value) | 166 | 78 | ||||
| Derivative liabilities (fair value) | 274 | 314 | ||||
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Special Purpose Entities [Member] | Credit-Linked Notes And Other [Member] | Investment Grade [Member]
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| Retained interests (fair value) | 3 | 8 | ||||
| Interests purchased in the secondary market (fair value) | 425 | 21 | ||||
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Special Purpose Entities [Member] | Credit-Linked Notes And Other [Member] | Non-Investment Grade [Member]
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| Retained interests (fair value) | 1,474 | 2,327 | ||||
| Interests purchased in the secondary market (fair value) | 24 | 11 | ||||
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Special Purpose Entities [Member] | Investment Grade [Member] | Residential Mortgage Loans [Member]
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| Retained interests (fair value) | 37 | 46 | ||||
| Interests purchased in the secondary market (fair value) | 75 | 118 | ||||
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Special Purpose Entities [Member] | Investment Grade [Member] | Commercial Mortgage Loans [Member]
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| Retained interests (fair value) | 89 | 64 | ||||
| Interests purchased in the secondary market (fair value) | 286 | 643 | ||||
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Special Purpose Entities [Member] | Non-Investment Grade [Member] | Residential Mortgage Loans [Member]
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| Retained interests (fair value) | 233 | 206 | ||||
| Interests purchased in the secondary market (fair value) | 266 | 205 | ||||
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Special Purpose Entities [Member] | Non-Investment Grade [Member] | Commercial Mortgage Loans [Member]
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| Retained interests (fair value) | 59 | 81 | ||||
| Interests purchased in the secondary market (fair value) | 144 | 55 | ||||
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Special Purpose Entities [Member] | Residential Mortgage Loans [Member]
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| SPE assets (unpaid principal balance) | 44,788 | [1] | 48,947 | [1] | ||
| Retained interests (fair value) | 270 | 252 | ||||
| Interests purchased in the secondary market (fair value) | 341 | 323 | ||||
| Derivative assets (fair value) | 40 | 75 | ||||
| Derivative liabilities (fair value) | 38 | 29 | ||||
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Special Purpose Entities [Member] | Commercial Mortgage Loans [Member]
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| SPE assets (unpaid principal balance) | 86,427 | [1] | 85,974 | [1] | ||
| Retained interests (fair value) | 148 | 145 | ||||
| Interests purchased in the secondary market (fair value) | 430 | 698 | ||||
| Derivative assets (fair value) | 1,123 | 955 | ||||
| Derivative liabilities (fair value) | $ 80 | |||||
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