XML 91 R70.htm IDEA: XBRL DOCUMENT v3.25.4
Investment Securities - Securities in Gross Unrealized Loss Position (Details)
$ in Millions
Dec. 31, 2025
USD ($)
security
Dec. 31, 2024
USD ($)
security
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months $ 2,188 $ 15,189
Gross Unrealized Loss - Less than 12 Months (6) (194)
Fair Value - 12 Months or Longer 52,246 55,326
Gross Unrealized Loss - 12 Months or Longer (7,080) (9,927)
Fair Value - Total 54,434 70,515
Gross Unrealized Loss - Total $ (7,086) $ (10,121)
Number of securities in gross unrealized loss positions | security 2,270 2,740
U.S. Treasury securities    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months $ 0 $ 1,724
Gross Unrealized Loss - Less than 12 Months 0 (6)
Fair Value - 12 Months or Longer 588 931
Gross Unrealized Loss - 12 Months or Longer 0 (3)
Fair Value - Total 588 2,655
Gross Unrealized Loss - Total 0 (9)
RMBS, Agency    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months 1,063 11,324
Gross Unrealized Loss - Less than 12 Months (4) (178)
Fair Value - 12 Months or Longer 46,859 48,707
Gross Unrealized Loss - 12 Months or Longer (6,738) (9,349)
Fair Value - Total 47,922 60,031
Gross Unrealized Loss - Total (6,742) (9,527)
RMBS, Non-agency    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months 2 3
Gross Unrealized Loss - Less than 12 Months 0 0
Fair Value - 12 Months or Longer 4 11
Gross Unrealized Loss - 12 Months or Longer 0 (1)
Fair Value - Total 6 14
Gross Unrealized Loss - Total 0 (1)
Total RMBS    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months 1,065 11,327
Gross Unrealized Loss - Less than 12 Months (4) (178)
Fair Value - 12 Months or Longer 46,863 48,718
Gross Unrealized Loss - 12 Months or Longer (6,738) (9,350)
Fair Value - Total 47,928 60,045
Gross Unrealized Loss - Total (6,742) (9,528)
Agency CMBS    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months 698 700
Gross Unrealized Loss - Less than 12 Months (2) (7)
Fair Value - 12 Months or Longer 4,795 5,677
Gross Unrealized Loss - 12 Months or Longer (342) (574)
Fair Value - Total 5,493 6,377
Gross Unrealized Loss - Total (344) (581)
Other securities    
Debt Securities, Available-for-sale [Line Items]    
Fair Value - Less than 12 Months 425 1,438
Gross Unrealized Loss - Less than 12 Months 0 (3)
Fair Value - 12 Months or Longer 0 0
Gross Unrealized Loss - 12 Months or Longer 0 0
Fair Value - Total 425 1,438
Gross Unrealized Loss - Total $ 0 $ (3)