Quarterly report pursuant to Section 13 or 15(d)

Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash (Details)

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Federal Funds Sold or Purchased, Securities Financing Agreements, Short-term Borrowings and Restricted Cash (Details) - USD ($)
$ in Millions
 3 Months Ended
Mar. 31, 2018
Mar. 31, 2017
Federal funds purchased and securities loaned or sold under agreements to repurchase    
Amount    
Average during year $ 195,614 $ 191,677
Maximum month-end balance during year $ 191,319 $ 199,926
Rate    
Average during year (percent) 1.41% 0.93%
Short-term borrowings    
Amount    
Average during year $ 46,334 $ 40,040
Maximum month-end balance during year $ 52,480 $ 44,944
Rate    
Average during year (percent) 3.98% 2.11%
Federal funds sold and securities borrowed or purchased under agreements to resell    
Amount    
Average during year $ 248,320 $ 216,402
Maximum month-end asset outstanding amount $ 252,078 $ 223,499
Rate    
Average asset outstanding rate (percent) 1.02% 0.67%