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
Mar. 31, 2024
Dec. 31, 2023
Fair Value    
Less than Twelve Months $ 26,715 $ 37,331
Twelve Months or Longer 103,076 102,171
Total 129,791 139,502
Gross Unrealized Losses    
Less than Twelve Months (62) (92)
Twelve Months or Longer (3,548) (3,891)
Total (3,610) (3,983)
Mortgage-backed securities    
Fair Value    
Less than Twelve Months 10,499 10,987
Twelve Months or Longer 26,549 27,435
Total 37,048 38,422
Gross Unrealized Losses    
Less than Twelve Months (44) (48)
Twelve Months or Longer (2,189) (2,157)
Total (2,233) (2,205)
Agency    
Fair Value    
Less than Twelve Months 9,729 8,624
Twelve Months or Longer 20,061 20,776
Total 29,790 29,400
Gross Unrealized Losses    
Less than Twelve Months (31) (21)
Twelve Months or Longer (1,456) (1,399)
Total (1,487) (1,420)
Agency-collateralized mortgage obligations    
Fair Value    
Less than Twelve Months 0 0
Twelve Months or Longer 1,630 1,701
Total 1,630 1,701
Gross Unrealized Losses    
Less than Twelve Months 0 0
Twelve Months or Longer (219) (201)
Total (219) (201)
Commercial    
Fair Value    
Less than Twelve Months 770 2,363
Twelve Months or Longer 4,700 4,588
Total 5,470 6,951
Gross Unrealized Losses    
Less than Twelve Months (13) (27)
Twelve Months or Longer (456) (487)
Total (469) (514)
Non-agency residential    
Fair Value    
Less than Twelve Months 0 0
Twelve Months or Longer 158 370
Total 158 370
Gross Unrealized Losses    
Less than Twelve Months 0 0
Twelve Months or Longer (58) (70)
Total (58) (70)
U.S. Treasury and government agencies    
Fair Value    
Less than Twelve Months 5,793 14,907
Twelve Months or Longer 68,837 69,669
Total 74,630 84,576
Gross Unrealized Losses    
Less than Twelve Months (3) (12)
Twelve Months or Longer (1,069) (1,449)
Total (1,072) (1,461)
Non-U.S. securities    
Fair Value    
Less than Twelve Months 9,661 7,702
Twelve Months or Longer 1,996 1,524
Total 11,657 9,226
Gross Unrealized Losses    
Less than Twelve Months (11) (8)
Twelve Months or Longer (10) (12)
Total (21) (20)
Other taxable securities    
Fair Value    
Less than Twelve Months 608 3,269
Twelve Months or Longer 2,450 1,437
Total 3,058 4,706
Gross Unrealized Losses    
Less than Twelve Months (3) (19)
Twelve Months or Longer (46) (57)
Total (49) (76)
Tax-exempt securities    
Fair Value    
Less than Twelve Months 154 466
Twelve Months or Longer 3,244 2,106
Total 3,398 2,572
Gross Unrealized Losses    
Less than Twelve Months (1) (5)
Twelve Months or Longer (234) (216)
Total $ (235) $ (221)