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Guarantees, Pledged Assets and Collateral Textuals (Details) (USD $)
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12 Months Ended | |
|---|---|---|
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Dec. 31, 2012
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Dec. 31, 2011
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | $ 61,600,000,000 | $ 56,697,000,000 |
| Collateral | 443,000,000 | 687,000,000 |
| Securities Loaned | 436,000,000 | 669,000,000 |
| Percentage share of losses owed on loans and MHFS sold with recourse | Primarily all of these programs and arrangements require that we share in the loans’ credit exposure for their remaining life by providing recourse to the GSE, up to 33.33% of actual losses incurred on a pro-rata basis. | |
| Residual Value Guarantee, Reimbursement Terms | To the extent that a sale of the leased assets results in proceeds less than a stated percent (generally 80% to 89%) of the asset’s cost, we would be required to reimburse the lessor under our guarantee. | |
| Securities owned and pledged as collateral not available to be repledged, Fair Value | 456,189,000,000 | 398,282,000,000 |
| Collateral received with the right to sell or repledge | 46,600,000,000 | 31,100,000,000 |
| Collateral sold or repledged | 29,700,000,000 | 16,700,000,000 |
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Direct pay letters of credit (DPLCs) [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 18,500,000,000 | 19,700,000,000 |
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Third party clearing indemnifications [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 2,100,000,000 | |
| Third-party clearing customer obligations | 579,000,000 | |
| Collateral provided to third-party clearing agents | 3,100,000,000 | |
| Guarantor Obligations, Term | These arrangements are for an indefinite period. | |
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Long-term resale agreements [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Collateral received with the right to sell or repledge | 15,500,000,000 | 13,300,000,000 |
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Standby Letters of Credit [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 39,759,000,000 | 41,171,000,000 |
| Guarantor Obligations, Term | The terms of our standby letters of credit are predominantly five years or less. | |
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Written put options [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 11,874,000,000 | 8,224,000,000 |
| Guarantor Obligations, Term | The terms of our written put options are largely five years or less. | |
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Loans and MHFS sold with recourse [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 5,873,000,000 | 5,784,000,000 |
| Guarantor Obligations, Term | Our recourse arrangements remain in effect as long as the loans are outstanding, which predominantly have remaining terms in excess of five years. | |
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Securities lending and other indemnifications [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Maximum exposure to loss | 2,541,000,000 | 669,000,000 |
| Guarantor Obligations, Term | These arrangements are for an indefinite period of time whereby we indemnify our clients against default by the borrower in returning these lent securities. This indemnity is supported by collateral received from the borrowers and is generally in the form of cash or highly liquid securities that are marked to market daily. Substantially all of these securities are returned to our clients within one year from trade date. | |
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Loans and Available-for-Sale Securities [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Securities owned and pledged as collateral available to be repledged, Fair Value | 0 | 0 |
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Loans and MHFS sold with recourse [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Loans repurchased | 26,000,000 | |
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Trading Securities [Member]
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| Guarantees (Textuals) [Abstract] | ||
| Securities owned and pledged as collateral available to be repledged, Fair Value | 27,400,000,000 | 20,800,000,000 |
| Securities owned and pledged as collateral not available to be repledged, Fair Value | $ 677,000,000 | $ 2,800,000,000 |