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
 6 Months Ended
Jun. 30, 2017
Dec. 31, 2016
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 325,328 $ 280,236
Securities loaned 25,052 18,792
Other 17,130 14,448
Total $ 367,510 313,476
Maximum agreement maturity period (less than) 3 years  
Overnight and Continuous    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase $ 128,827 129,853
Securities loaned 17,670 8,564
Other 17,130 14,448
Total 163,627 152,865
30 Days or Less    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 91,895 77,780
Securities loaned 864 6,602
Other 0 0
Total 92,759 84,382
After 30 Days Through 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 48,976 31,851
Securities loaned 2,017 1,473
Other 0 0
Total 50,993 33,324
Greater than 90 Days    
Remaining Contractual Maturity    
Securities sold under agreements to repurchase 55,630 40,752
Securities loaned 4,501 2,153
Other 0 0
Total $ 60,131 $ 42,905