v3.4.0.3
Segment and Geographic Information (Assets by Segments) (Details) - USD ($)
$ in Millions
Mar. 31, 2016
Dec. 31, 2015
Segment Reporting Information    
Assets $ 807,497 $ 787,465
Institutional Securities    
Segment Reporting Information    
Assets 621,644 602,714
Wealth Management    
Segment Reporting Information    
Assets 181,087 179,708
Investment Management    
Segment Reporting Information    
Assets $ 4,766 $ 5,043