Annual report pursuant to Section 13 and 15(d)

Deposits (Details)

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Deposits (Details) - USD ($)
$ in Millions
Dec. 31, 2018
Dec. 31, 2017
Deposits [Abstract]    
Time deposits that met or exceeded the FDIC insurance limit $ 16,400 $ 17,000
U.S.    
Time Deposits [Line Items]    
Three Months or Less 14,441  
Over Three Months to Twelve Months 11,855  
Thereafter 3,209  
Total 29,505 25,192
Non-U.S.    
Time Deposits [Line Items]    
Three Months or Less 7,317  
Over Three Months to Twelve Months 2,655  
Thereafter 820  
Total $ 10,792 $ 15,472