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v3.25.3

Investment Securities - Securities in Gross Unrealized Loss Position (Details) $ in Millions | Sep. 30, 2025 USD ($) security | Dec. 31, 2024 USD ($) security
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Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | $ 3,724 | $ 15,189
Gross Unrealized Loss - Less than 12 Months | (8) | (194)
Fair Value - 12 Months or Longer | 55,080 | 55,326
Gross Unrealized Loss - 12 Months or Longer | (7,553) | (9,927)
Fair Value - Total | 58,804 | 70,515
Gross Unrealized Loss - Total | $ (7,561) | $ (10,121)
Number of securities in gross unrealized loss positions | security | 2,330 | 2,740
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | $ 712 | $ 1,724
Gross Unrealized Loss - Less than 12 Months | (1) | (6)
Fair Value - 12 Months or Longer | 1,204 | 931
Gross Unrealized Loss - 12 Months or Longer | (3) | (3)
Fair Value - Total | 1,916 | 2,655
Gross Unrealized Loss - Total | (4) | (9)
RMBS, Agency |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 2,014 | 11,324
Gross Unrealized Loss - Less than 12 Months | (5) | (178)
Fair Value - 12 Months or Longer | 48,313 | 48,707
Gross Unrealized Loss - 12 Months or Longer | (7,162) | (9,349)
Fair Value - Total | 50,327 | 60,031
Gross Unrealized Loss - Total | (7,167) | (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 | 8 | 11
Gross Unrealized Loss - 12 Months or Longer | 0 | (1)
Fair Value - Total | 10 | 14
Gross Unrealized Loss - Total | 0 | (1)
Total RMBS |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 2,016 | 11,327
Gross Unrealized Loss - Less than 12 Months | (5) | (178)
Fair Value - 12 Months or Longer | 48,321 | 48,718
Gross Unrealized Loss - 12 Months or Longer | (7,162) | (9,350)
Fair Value - Total | 50,337 | 60,045
Gross Unrealized Loss - Total | (7,167) | (9,528)
Agency CMBS |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 466 | 700
Gross Unrealized Loss - Less than 12 Months | (2) | (7)
Fair Value - 12 Months or Longer | 5,555 | 5,677
Gross Unrealized Loss - 12 Months or Longer | (388) | (574)
Fair Value - Total | 6,021 | 6,377
Gross Unrealized Loss - Total | (390) | (581)
Other securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 530 | 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 | 530 | 1,438
Gross Unrealized Loss - Total | $ 0 | $ (3)

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