Quarterly report pursuant to Section 13 or 15(d)

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

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Federal Funds Sold or Purchased, Securities Financing Agreements and Short-term Borrowings (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2017
Jun. 30, 2016
Jun. 30, 2017
Jun. 30, 2016
Federal funds purchased and securities loaned or sold under agreements to repurchase        
Amount        
Average during year $ 208,760 $ 184,392 $ 200,265 $ 187,844
Maximum month-end balance during year $ 218,017 $ 182,776 $ 218,017 $ 196,631
Rate        
Average during year (percent) 1.21% 1.03% 1.08% 1.03%
Short-term borrowings        
Amount        
Average during year $ 42,881 $ 31,460 $ 41,468 $ 31,077
Maximum month-end balance during year $ 46,202 $ 33,051 $ 46,202 $ 33,051
Rate        
Average during year (percent) 2.65% 1.95% 2.39% 1.77%
Federal funds sold and securities borrowed or purchased under agreements to resell        
Amount        
Average during year $ 226,700 $ 223,005 $ 221,579 $ 216,094
Maximum month-end asset outstanding amount $ 237,064 $ 225,015 $ 237,064 $ 225,015
Rate        
Average asset outstanding rate (percent) 0.99% 0.47% 0.91% 0.50%