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
 3 Months Ended
Mar. 31, 2016
Dec. 31, 2015
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 299,516 $ 284,303
Securities loaned 34,439 44,775
Other 12,357 13,235
Total $ 346,312 342,313
Maximum agreement maturity period (less than) 3 years  
Overnight and Continuous    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 140,870 126,694
Securities loaned 28,606 39,772
Other 12,357 13,235
Total 181,833 179,701
30 Days or Less    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 79,715 86,879
Securities loaned 1,547 363
Other 0 0
Total 81,262 87,242
After 30 Days Through 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 42,337 43,216
Securities loaned 1,821 2,352
Other 0 0
Total 44,158 45,568
Greater than 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 36,594 27,514
Securities loaned 2,465 2,288
Other 0 0
Total $ 39,059 $ 29,802