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v3.25.1

Investment Securities - Securities in Gross Unrealized Loss Position (Details) $ in Millions | Mar. 31, 2025 USD ($) security | Dec. 31, 2024 USD ($) security
--- | --- | ---
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | $ 10,922 | $ 15,189
Gross Unrealized Loss - Less than 12 Months | (84) | (194)
Fair Value - 12 Months or Longer | 54,700 | 55,326
Gross Unrealized Loss - 12 Months or Longer | (8,683) | (9,927)
Fair Value - Total | 65,622 | 70,515
Gross Unrealized Loss - Total | $ (8,767) | $ (10,121)
Number of securities in gross unrealized loss positions | security | 2,480 | 2,740
U.S. Treasury securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | $ 1,711 | $ 1,724
Gross Unrealized Loss - Less than 12 Months | (4) | (6)
Fair Value - 12 Months or Longer | 679 | 931
Gross Unrealized Loss - 12 Months or Longer | (2) | (3)
Fair Value - Total | 2,390 | 2,655
Gross Unrealized Loss - Total | (6) | (9)
RMBS, Agency |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 7,457 | 11,324
Gross Unrealized Loss - Less than 12 Months | (75) | (178)
Fair Value - 12 Months or Longer | 48,541 | 48,707
Gross Unrealized Loss - 12 Months or Longer | (8,198) | (9,349)
Fair Value - Total | 55,998 | 60,031
Gross Unrealized Loss - Total | (8,273) | (9,527)
RMBS, Non-agency |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 4 | 3
Gross Unrealized Loss - Less than 12 Months | 0 | 0
Fair Value - 12 Months or Longer | 7 | 11
Gross Unrealized Loss - 12 Months or Longer | 0 | (1)
Fair Value - Total | 11 | 14
Gross Unrealized Loss - Total | 0 | (1)
Total RMBS |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 7,461 | 11,327
Gross Unrealized Loss - Less than 12 Months | (75) | (178)
Fair Value - 12 Months or Longer | 48,548 | 48,718
Gross Unrealized Loss - 12 Months or Longer | (8,198) | (9,350)
Fair Value - Total | 56,009 | 60,045
Gross Unrealized Loss - Total | (8,273) | (9,528)
Agency CMBS |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 826 | 700
Gross Unrealized Loss - Less than 12 Months | (4) | (7)
Fair Value - 12 Months or Longer | 5,462 | 5,677
Gross Unrealized Loss - 12 Months or Longer | (483) | (574)
Fair Value - Total | 6,288 | 6,377
Gross Unrealized Loss - Total | (487) | (581)
Other securities |  |
Debt Securities, Available-for-sale [Line Items] |  |
Fair Value - Less than 12 Months | 924 | 1,438
Gross Unrealized Loss - Less than 12 Months | (1) | (3)
Fair Value - 12 Months or Longer | 11 | 0
Gross Unrealized Loss - 12 Months or Longer | 0 | 0
Fair Value - Total | 935 | 1,438
Gross Unrealized Loss - Total | $ (1) | $ (3)

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