XML 33 R69.htm IDEA: XBRL DOCUMENT v3.19.3
Collateralized Transactions - Assets Loaned or Pledged (Details) - USD ($)
$ in Millions
Sep. 30, 2019
Dec. 31, 2018
Collateralized Agreements [Abstract]    
Trading assets $ 38,325 $ 39,430
Loans (gross of allowance for loan losses) 300 0
Total $ 38,625 $ 39,430