Quarterly report pursuant to Section 13 or 15(d)

Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings - Repurchase Agreements and Securities Loaned Transactions Accounted for as Secured Borrowings (Details)

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Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings - Repurchase Agreements and Securities Loaned Transactions Accounted for as Secured Borrowings (Details) - USD ($)
$ in Millions
 9 Months Ended
Sep. 30, 2016
Dec. 31, 2015
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 300,391 $ 284,303
Securities loaned 20,456 44,775
Other 15,588 13,235
Total $ 336,435 342,313
Maximum agreement maturity period (less than) 3 years  
Overnight and Continuous    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 143,277 126,694
Securities loaned 15,372 39,772
Other 15,588 13,235
Total 174,237 179,701
30 Days or Less    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 72,784 86,879
Securities loaned 1,458 363
Other 0 0
Total 74,242 87,242
After 30 Days Through 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 43,945 43,216
Securities loaned 1,804 2,352
Other 0 0
Total 45,749 45,568
Greater than 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 40,385 27,514
Securities loaned 1,822 2,288
Other 0 0
Total $ 42,207 $ 29,802