Quarterly report pursuant to Section 13 or 15(d)

Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings Offsetting Assets and Liabilities (Details)

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Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings Offsetting Assets and Liabilities (Details) (USD $)
In Millions, unless otherwise specified
Jun. 30, 2013
Dec. 31, 2012
Offsetting Assets And Liabilities [Abstract]    
Securities borrowed or purchased under agreements to resell, gross asset $ 327,011 $ 366,238
Securities borrowed or purchased under agreements to resell, amounts offset (102,843) (146,914)
Securities Borrowed or Purchased Under Agreements to Resell 224,168 219,324
Securities borrowed or purchased under agreements to resell, financial Instruments (174,121) (173,593)
Securities borrowed or purchased under agreements to resell, net asset 50,047 45,731
Securities loaned or sold under agreements to repurchase, gross liability 335,285 439,022
Securities loaned or sold under agreements to repurchase, amounts offset (102,843) (146,914)
Securities loaned or sold under agreements to repurchase, net balance sheet amount 232,442 292,108
Securities loaned or sold under agreements to repurchase, financial instruments (163,759) (217,817)
Securities loaned or sold under agreements to repurchase, net liability 68,683 74,291
Other, gross liability 12,582 12,306
Other, amounts offset 0 0
Other, net balance sheet amount 12,582 12,306
Other, financial instruments (12,575) (12,302)
Other, net liability 7 4
Total, gross liability 347,867 451,328
Total, amounts offset (102,843) (146,914)
Total, net balance sheet amount 245,024 304,414
Total, financial instruments (176,334) (230,119)
Total, net liability $ 68,690 $ 74,295