Quarterly report pursuant to Section 13 or 15(d)

Securities - AFS Debt Securities in a Continuous Unrealized Loss Position (Details)

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Securities - AFS Debt Securities in a Continuous Unrealized Loss Position (Details) - USD ($)
$ in Millions
Jun. 30, 2021
Dec. 31, 2020
Fair Value    
Less than Twelve Months $ 71,612 $ 18,763
Twelve Months or Longer 2,616 2,077
Total 74,228 20,840
Gross Unrealized Losses    
Less than Twelve Months (325) (100)
Twelve Months or Longer (51) (31)
Total (376) (131)
Mortgage-backed securities    
Fair Value    
Less than Twelve Months 15,249 3,936
Twelve Months or Longer 1,575 431
Total 16,824 4,367
Gross Unrealized Losses    
Less than Twelve Months (66) (54)
Twelve Months or Longer (42) (19)
Total (108) (73)
Agency    
Fair Value    
Less than Twelve Months 11,555 2,841
Twelve Months or Longer 1,114 2
Total 12,669 2,843
Gross Unrealized Losses    
Less than Twelve Months (41) (39)
Twelve Months or Longer (24) 0
Total (65) (39)
Agency-collateralized mortgage obligations    
Fair Value    
Less than Twelve Months 1,661 187
Twelve Months or Longer 301 364
Total 1,962 551
Gross Unrealized Losses    
Less than Twelve Months 0 (2)
Twelve Months or Longer (8) (11)
Total (8) (13)
Commercial    
Fair Value    
Less than Twelve Months 1,535 566
Twelve Months or Longer 2 9
Total 1,537 575
Gross Unrealized Losses    
Less than Twelve Months (25) (4)
Twelve Months or Longer 0 0
Total (25) (4)
Non-agency residential    
Fair Value    
Less than Twelve Months 498 342
Twelve Months or Longer 158 56
Total 656 398
Gross Unrealized Losses    
Less than Twelve Months 0 (9)
Twelve Months or Longer (10) (8)
Total (10) (17)
U.S. Treasury and agency securities    
Fair Value    
Less than Twelve Months 56,061 8,282
Twelve Months or Longer 695 498
Total 56,756 8,780
Gross Unrealized Losses    
Less than Twelve Months (259) (9)
Twelve Months or Longer (5) (4)
Total (264) (13)
Non-U.S. securities    
Fair Value    
Less than Twelve Months 0 1,861
Twelve Months or Longer 105 135
Total 105 1,996
Gross Unrealized Losses    
Less than Twelve Months 0 (6)
Twelve Months or Longer (2) (1)
Total (2) (7)
Other taxable securities    
Fair Value    
Less than Twelve Months 291 576
Twelve Months or Longer 56 396
Total 347 972
Gross Unrealized Losses    
Less than Twelve Months 0 (2)
Twelve Months or Longer 0 (4)
Total 0 (6)
Total taxable securities    
Fair Value    
Less than Twelve Months 71,601 14,655
Twelve Months or Longer 2,431 1,460
Total 74,032 16,115
Gross Unrealized Losses    
Less than Twelve Months (325) (71)
Twelve Months or Longer (49) (28)
Total (374) (99)
Tax-exempt securities    
Fair Value    
Less than Twelve Months 11 4,108
Twelve Months or Longer 185 617
Total 196 4,725
Gross Unrealized Losses    
Less than Twelve Months 0 (29)
Twelve Months or Longer (2) (3)
Total $ (2) $ (32)