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, 2024
Dec. 31, 2023
Fair Value    
Less than Twelve Months $ 120,243 $ 37,331
Twelve Months or Longer 100,578 102,171
Total 220,821 139,502
Gross Unrealized Losses    
Less than Twelve Months (196) (92)
Twelve Months or Longer (3,715) (3,891)
Total (3,911) (3,983)
Mortgage-backed securities    
Fair Value    
Less than Twelve Months 18,860 10,987
Twelve Months or Longer 25,823 27,435
Total 44,683 38,422
Gross Unrealized Losses    
Less than Twelve Months (100) (48)
Twelve Months or Longer (2,322) (2,157)
Total (2,422) (2,205)
Agency    
Fair Value    
Less than Twelve Months 14,403 8,624
Twelve Months or Longer 19,359 20,776
Total 33,762 29,400
Gross Unrealized Losses    
Less than Twelve Months (79) (21)
Twelve Months or Longer (1,585) (1,399)
Total (1,664) (1,420)
Agency-collateralized mortgage obligations    
Fair Value    
Less than Twelve Months 2,903 0
Twelve Months or Longer 1,578 1,701
Total 4,481 1,701
Gross Unrealized Losses    
Less than Twelve Months (9) 0
Twelve Months or Longer (216) (201)
Total (225) (201)
Commercial    
Fair Value    
Less than Twelve Months 1,554 2,363
Twelve Months or Longer 4,731 4,588
Total 6,285 6,951
Gross Unrealized Losses    
Less than Twelve Months (12) (27)
Twelve Months or Longer (457) (487)
Total (469) (514)
Non-agency residential    
Fair Value    
Less than Twelve Months 0 0
Twelve Months or Longer 155 370
Total 155 370
Gross Unrealized Losses    
Less than Twelve Months 0 0
Twelve Months or Longer (64) (70)
Total (64) (70)
U.S. Treasury and government agencies    
Fair Value    
Less than Twelve Months 91,552 14,907
Twelve Months or Longer 68,083 69,669
Total 159,635 84,576
Gross Unrealized Losses    
Less than Twelve Months (73) (12)
Twelve Months or Longer (1,110) (1,449)
Total (1,183) (1,461)
Non-U.S. securities    
Fair Value    
Less than Twelve Months 8,346 7,702
Twelve Months or Longer 2,593 1,524
Total 10,939 9,226
Gross Unrealized Losses    
Less than Twelve Months (12) (8)
Twelve Months or Longer (11) (12)
Total (23) (20)
Other taxable securities    
Fair Value    
Less than Twelve Months 672 3,269
Twelve Months or Longer 1,394 1,437
Total 2,066 4,706
Gross Unrealized Losses    
Less than Twelve Months (4) (19)
Twelve Months or Longer (50) (57)
Total (54) (76)
Tax-exempt securities    
Fair Value    
Less than Twelve Months 813 466
Twelve Months or Longer 2,685 2,106
Total 3,498 2,572
Gross Unrealized Losses    
Less than Twelve Months (7) (5)
Twelve Months or Longer (222) (216)
Total $ (229) $ (221)