|
Guarantees, Pledged Assets and Collateral Textuals (Details) (USD $)
|
3 Months Ended | 6 Months Ended | 3 Months Ended | 6 Months Ended | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Jun. 30, 2013
|
Dec. 31, 2012
|
Jun. 30, 2013
Fed Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Member]
|
Dec. 31, 2012
Fed Funds Sold, Securities Purchased under Resale Agreements and Other Short-Term Investments [Member]
|
Jun. 30, 2013
Loans [Member]
|
Dec. 31, 2012
Loans [Member]
|
Jun. 30, 2013
Direct pay letters of credit (DPLCs) [Member]
|
Dec. 31, 2012
Direct pay letters of credit (DPLCs) [Member]
|
Jun. 30, 2013
Third party clearing indemnifications [Member]
|
Dec. 31, 2012
Third party clearing indemnifications [Member]
|
Jun. 30, 2013
Securities lending and other indemnifications [Member]
|
Dec. 31, 2012
Securities lending and other indemnifications [Member]
|
Jun. 30, 2013
Loans and MHFS sold with recourse [Member]
|
Jun. 30, 2012
Loans and MHFS sold with recourse [Member]
|
Jun. 30, 2013
Loans and MHFS sold with recourse [Member]
|
Jun. 30, 2012
Loans and MHFS sold with recourse [Member]
|
Jun. 30, 2013
Trading assets and other [Member]
|
Dec. 31, 2012
Trading assets and other [Member]
|
Jun. 30, 2013
Available for sale Securities [Member]
|
Dec. 31, 2012
Available for sale Securities [Member]
|
|
| Guarantees (Textuals) [Abstract] | ||||||||||||||||||||
| Maximum exposure to loss | $ 59,771,000,000 | $ 61,600,000,000 | $ 17,200,000,000 | $ 18,500,000,000 | $ 2,900,000,000 | $ 2,100,000,000 | $ 3,244,000,000 | $ 2,541,000,000 | ||||||||||||
| 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. | |||||||||||||||||||
| Collateral | 397,000,000 | 443,000,000 | ||||||||||||||||||
| Securities Loaned | 385,000,000 | 436,000,000 | ||||||||||||||||||
| Third-party clearing customer obligations | 655,000,000 | 579,000,000 | ||||||||||||||||||
| Collateral provided to third-party clearing agents | 3,600,000,000 | 3,100,000,000 | ||||||||||||||||||
| 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. | |||||||||||||||||||
| Loans repurchased | 7,000,000 | 10,000,000 | 18,000,000 | 16,000,000 | ||||||||||||||||
| Pledged collateral assets related to consolidated VIEs | 10,700,000,000 | 14,600,000,000 | ||||||||||||||||||
| Securities owned and pledged as collateral available to be repledged, Fair Value | 34,300,000,000 | 27,400,000,000 | ||||||||||||||||||
| Securities owned and pledged as collateral related to repurchase agreements not available to be repledged, Fair Value | 9,800,000,000 | 9,100,000,000 | 8,800,000,000 | 8,400,000,000 | ||||||||||||||||
| Net amounts in consolidated balance sheet | 40,535,000,000 | 43,286,000,000 | 29,600,000,000 | 33,800,000,000 | 10,900,000,000 | 9,500,000,000 | ||||||||||||||
| Non-cash collateral received, fair value | 51,300,000,000 | 46,600,000,000 | ||||||||||||||||||
| Collateral received with the right to sell or repledge | 51,300,000,000 | 46,600,000,000 | ||||||||||||||||||
| Collateral sold or repledged | 30,500,000,000 | 29,700,000,000 | ||||||||||||||||||
| Non-cash collateral pledged, fair value | $ 44,200,000,000 | $ 36,400,000,000 | ||||||||||||||||||