Quarterly report pursuant to Section 13 or 15(d)

Securities - Gross Unrealized Losses (Details)

v3.2.0.727
Securities - Gross Unrealized Losses (Details) - USD ($)
$ in Millions
Jun. 30, 2015
Dec. 31, 2014
Debt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value $ 115,714 $ 16,346
Less than Twelve Months, Gross Unrealized Losses (1,436) (99)
Twelve Months or Longer, Fair Value 21,200 49,554
Twelve Months or Longer, Gross Unrealized Losses (665) (736)
Total, Fair Value 136,914 65,900
Total, Gross Unrealized Losses (2,101) (835)
Temporarily impaired AFS debt securities | Debt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 115,307 15,791
Less than Twelve Months, Gross Unrealized Losses (1,427) (66)
Twelve Months or Longer, Fair Value 21,113 49,554
Twelve Months or Longer, Gross Unrealized Losses (658) (736)
Total, Fair Value 136,420 65,345
Total, Gross Unrealized Losses (2,085) (802)
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 1,561 10,121
Less than Twelve Months, Gross Unrealized Losses (12) (22)
Twelve Months or Longer, Fair Value 259 667
Twelve Months or Longer, Gross Unrealized Losses (4) (10)
Total, Fair Value 1,820 10,788
Total, Gross Unrealized Losses (16) (32)
Temporarily impaired AFS debt securities | Agency    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 106,914 1,366
Less than Twelve Months, Gross Unrealized Losses (1,362) (8)
Twelve Months or Longer, Fair Value 16,042 43,118
Twelve Months or Longer, Gross Unrealized Losses (537) (585)
Total, Fair Value 122,956 44,484
Total, Gross Unrealized Losses (1,899) (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 1,648 2,242
Less than Twelve Months, Gross Unrealized Losses (12) (19)
Twelve Months or Longer, Fair Value 1,339 3,075
Twelve Months or Longer, Gross Unrealized Losses (30) (60)
Total, Fair Value 2,987 5,317
Total, Gross Unrealized Losses (42) (79)
Temporarily impaired AFS debt securities | Non-agency residential    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 385 307
Less than Twelve Months, Gross Unrealized Losses (3) (3)
Twelve Months or Longer, Fair Value 724 809
Twelve Months or Longer, Gross Unrealized Losses (43) (41)
Total, Fair Value 1,109 1,116
Total, Gross Unrealized Losses (46) (44)
Temporarily impaired AFS debt securities | Commercial    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 1,716  
Less than Twelve Months, Gross Unrealized Losses (31)  
Twelve Months or Longer, Fair Value 0  
Twelve Months or Longer, Gross Unrealized Losses 0  
Total, Fair Value 1,716  
Total, Gross Unrealized Losses (31)  
Temporarily impaired AFS debt securities | Non-U.S. securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 125 157
Less than Twelve Months, Gross Unrealized Losses (1) (9)
Twelve Months or Longer, Fair Value 45 32
Twelve Months or Longer, Gross Unrealized Losses (3) (2)
Total, Fair Value 170 189
Total, Gross Unrealized Losses (4) (11)
Temporarily impaired AFS debt securities | Corporate/Agency bonds    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 79 43
Less than Twelve Months, Gross Unrealized Losses (1) (1)
Twelve Months or Longer, Fair Value 0 93
Twelve Months or Longer, Gross Unrealized Losses 0 (1)
Total, Fair Value 79 136
Total, Gross Unrealized Losses (1) (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 787 575
Less than Twelve Months, Gross Unrealized Losses (3) (3)
Twelve Months or Longer, Fair Value 1,208 1,080
Twelve Months or Longer, Gross Unrealized Losses (18) (19)
Total, Fair Value 1,995 1,655
Total, Gross Unrealized Losses (21) (22)
Temporarily impaired AFS debt securities | Total taxable securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 113,215 14,811
Less than Twelve Months, Gross Unrealized Losses (1,425) (65)
Twelve Months or Longer, Fair Value 19,617 48,874
Twelve Months or Longer, Gross Unrealized Losses (635) (718)
Total, Fair Value 132,832 63,685
Total, Gross Unrealized Losses (2,060) (783)
Temporarily impaired AFS debt securities | Tax-exempt securities    
Available-for-sale Securities, Continuous Unrealized Loss Position [Abstract]    
Less than Twelve Months, Fair Value 2,092 980
Less than Twelve Months, Gross Unrealized Losses (2) (1)
Twelve Months or Longer, Fair Value 1,496 680
Twelve Months or Longer, Gross Unrealized Losses (23) (18)
Total, Fair Value 3,588 1,660
Total, Gross Unrealized Losses (25) (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 407 555
Less than Twelve Months, Gross Unrealized Losses (9) (33)
Twelve Months or Longer, Fair Value 87 0
Twelve Months or Longer, Gross Unrealized Losses (7) 0
Total, Fair Value 494 555
Total, Gross Unrealized Losses $ (16) $ (33)