XML 114 R94.htm IDEA: XBRL DOCUMENT v3.6.0.2
Financial Instruments Subject to Off-Balance Sheet Credit Risk or Concentration Risk (Narrative) (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2016
Dec. 31, 2015
Dec. 31, 2014
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of mortgage-backed securities $ 105,900 $ 72,300  
Sales Revenue, Net [Member] | Fees Received from Proprietary Mutual Funds and Exchange-Traded Funds [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Concentration risk percentage 13.00% 8.00% 7.00%
U.S. agency mortgage-backed securities [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of mortgage-backed securities $ 104,900 $ 71,000  
Non-agency mortgage-backed securities [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of mortgage-backed securities $ 1,000 $ 1,300  
California [Member] | Client Accounts [Member] | Geographic Concentration Risk [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Concentration risk percentage 23.00% 23.00% 23.00%
Securities Financing Transaction, Fair Value [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of securities borrowed $ 213 $ 72  
Corporate Debt Securities And Commercial Paper [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Fair value of AFS securities, cash & cash equivalents, and other securities owned $ 10,600 11,100  
Percentage of AFS securities, cash & cash equivalents, and other securities owned issued by institutions in financial services industry 48.00%    
Adjustable Rate First Mortgages [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Residential real estate mortgage loans $ 8,200 $ 7,500  
Percent of residential real estate mortgage loans with interest only payment terms 36.00%    
Percent of interest-only residential real estate mortgage loans with interest rates not scheduled to reset for three or more years 58.00%    
Adjustable Rate First Mortgages [Member] | Minimum [Member]      
Fair Value, Off-balance Sheet Risks, Disclosure Information [Line Items]      
Interest-only loans period 3 years