XML 76 R66.htm IDEA: XBRL DOCUMENT v3.21.2
Investment Securities - Non-marketable and Other Securities Additional Information (Details)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2021
USD ($)
Investment
Sep. 30, 2020
USD ($)
Sep. 30, 2021
USD ($)
Investment
Sep. 30, 2020
USD ($)
Dec. 31, 2020
USD ($)
Investment
Investment Holdings [Line Items]          
Investments in qualified affordable housing projects, net $ 920   $ 920   $ 616
Other liabilities 471   471   370
Tax credits and other tax benefits recognized 9 $ 15 63 $ 47  
Amortization expense included in provision for income taxes 17 $ 10 48 $ 32  
Fair value accounting | Unconsolidated venture capital and private equity fund investments          
Investment Holdings [Line Items]          
Nonmarketable securities $ 222   $ 222   $ 185
Upper Limit          
Investment Holdings [Line Items]          
Percentage of ownership (less than 5%) 5.00%        
Non-marketable securities | Fair value accounting | Unconsolidated venture capital and private equity fund investments          
Investment Holdings [Line Items]          
Number of investments | Investment 153   153   162