Annual report pursuant to Section 13 and 15(d)

Securities - Gross Unrealized Losses (Details)

v3.3.1.900
Securities - Gross Unrealized Losses (Details) - USD ($)
$ in Millions
Dec. 31, 2015
Dec. 31, 2014
Debt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value $ 148,632 $ 16,346
Less than Twelve Months, Gross Unrealized Losses (1,428) (99)
Twelve Months or Longer, Fair Value 20,346 49,554
Twelve Months or Longer, Gross Unrealized Losses (596) (736)
Total, Fair Value 168,978 65,900
Total, Gross Unrealized Losses (2,024) (835)
Temporarily impaired AFS debt securities | Debt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 148,151 15,791
Less than Twelve Months, Gross Unrealized Losses (1,409) (66)
Twelve Months or Longer, Fair Value 20,248 49,554
Twelve Months or Longer, Gross Unrealized Losses (582) (736)
Total, Fair Value 168,399 65,345
Total, Gross Unrealized Losses (1,991) (802)
Temporarily impaired AFS debt securities | Agency    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 131,511 1,366
Less than Twelve Months, Gross Unrealized Losses (1,245) (8)
Twelve Months or Longer, Fair Value 14,895 43,118
Twelve Months or Longer, Gross Unrealized Losses (443) (585)
Total, Fair Value 146,406 44,484
Total, Gross Unrealized Losses (1,688) (593)
Temporarily impaired AFS debt securities | Agency-collateralized mortgage obligations    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 1,271 2,242
Less than Twelve Months, Gross Unrealized Losses (9) (19)
Twelve Months or Longer, Fair Value 1,637 3,075
Twelve Months or Longer, Gross Unrealized Losses (62) (60)
Total, Fair Value 2,908 5,317
Total, Gross Unrealized Losses (71) (79)
Temporarily impaired AFS debt securities | Commercial    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 4,066  
Less than Twelve Months, Gross Unrealized Losses (61)  
Twelve Months or Longer, Fair Value 0  
Twelve Months or Longer, Gross Unrealized Losses 0  
Total, Fair Value 4,066  
Total, Gross Unrealized Losses (61)  
Temporarily impaired AFS debt securities | Non-agency residential    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 553 307
Less than Twelve Months, Gross Unrealized Losses (5) (3)
Twelve Months or Longer, Fair Value 723 809
Twelve Months or Longer, Gross Unrealized Losses (32) (41)
Total, Fair Value 1,276 1,116
Total, Gross Unrealized Losses (37) (44)
Temporarily impaired AFS debt securities | Mortgage-backed securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 137,401 3,915
Less than Twelve Months, Gross Unrealized Losses (1,320) (30)
Twelve Months or Longer, Fair Value 17,255 47,002
Twelve Months or Longer, Gross Unrealized Losses (537) (686)
Total, Fair Value 154,656 50,917
Total, Gross Unrealized Losses (1,857) (716)
Temporarily impaired AFS debt securities | U.S. Treasury and agency securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 1,172 10,121
Less than Twelve Months, Gross Unrealized Losses (5) (22)
Twelve Months or Longer, Fair Value 190 667
Twelve Months or Longer, Gross Unrealized Losses (4) (10)
Total, Fair Value 1,362 10,788
Total, Gross Unrealized Losses (9) (32)
Temporarily impaired AFS debt securities | Non-U.S. securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 0 157
Less than Twelve Months, Gross Unrealized Losses 0 (9)
Twelve Months or Longer, Fair Value 134 32
Twelve Months or Longer, Gross Unrealized Losses (3) (2)
Total, Fair Value 134 189
Total, Gross Unrealized Losses (3) (11)
Temporarily impaired AFS debt securities | Corporate/Agency bonds    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 107 43
Less than Twelve Months, Gross Unrealized Losses (3) (1)
Twelve Months or Longer, Fair Value 0 93
Twelve Months or Longer, Gross Unrealized Losses 0 (1)
Total, Fair Value 107 136
Total, Gross Unrealized Losses (3) (2)
Temporarily impaired AFS debt securities | Other taxable securities, substantially all asset-backed securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 5,071 575
Less than Twelve Months, Gross Unrealized Losses (69) (3)
Twelve Months or Longer, Fair Value 792 1,080
Twelve Months or Longer, Gross Unrealized Losses (17) (19)
Total, Fair Value 5,863 1,655
Total, Gross Unrealized Losses (86) (22)
Temporarily impaired AFS debt securities | Total taxable securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 143,751 14,811
Less than Twelve Months, Gross Unrealized Losses (1,397) (65)
Twelve Months or Longer, Fair Value 18,371 48,874
Twelve Months or Longer, Gross Unrealized Losses (561) (718)
Total, Fair Value 162,122 63,685
Total, Gross Unrealized Losses (1,958) (783)
Temporarily impaired AFS debt securities | Tax-exempt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 4,400 980
Less than Twelve Months, Gross Unrealized Losses (12) (1)
Twelve Months or Longer, Fair Value 1,877 680
Twelve Months or Longer, Gross Unrealized Losses (21) (18)
Total, Fair Value 6,277 1,660
Total, Gross Unrealized Losses (33) (19)
Other-than-temporarily impaired AFS debt securities | Non-agency residential    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 481 555
Less than Twelve Months, Gross Unrealized Losses (19) (33)
Twelve Months or Longer, Fair Value 98 0
Twelve Months or Longer, Gross Unrealized Losses (14) 0
Total, Fair Value 579 555
Total, Gross Unrealized Losses $ (33) $ (33)