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Investment Securities (Tables) | 9 Months Ended
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Sep. 30, 2025
Investments, Debt and Equity Securities [Abstract] |
Schedule of Available-for-Sale Securities | The table below presents the amortized cost, allowance for credit losses, gross unrealized gains and losses and fair value of our investment securities aggregated by major security type as of September 30, 2025 and December 31, 2024. Accrued interest receivable of $302 million and $262 million as of September 30, 2025 and December 31, 2024, respectively, is not included in the table below. Table 3.1: Investment Securities Available for Sale
|  | September 30, 2025
(Dollars in millions) |  | Amortized Cost |  | Allowance for Credit Losses |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Investment securities available for sale: |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 8,613 |  |  | $ | 0 |  |  | $ | 28 |  |  | $ | (4) |  |  | $ | 8,637 |
RMBS: |  |  |  |  |  |  |  |  |  |
Agency |  | 75,246 |  |  | 0 |  |  | 218 |  |  | (7,167) |  |  | 68,297 |
Non-agency |  | 536 |  |  | (3) |  |  | 72 |  |  | (3) |  |  | 602 |
Total RMBS |  | 75,782 |  |  | (3) |  |  | 290 |  |  | (7,170) |  |  | 68,899 |
Agency CMBS |  | 8,795 |  |  | 0 |  |  | 35 |  |  | (390) |  |  | 8,440 |
Other securities(1) |  | 3,749 |  |  | 0 |  |  | 8 |  |  | 0 |  |  | 3,757 |
Total investment securities available for sale |  | $ | 96,939 |  |  | $ | (3) |  |  | $ | 361 |  |  | $ | (7,564) |  |  | $ | 89,733 |
|  | December 31, 2024
(Dollars in millions) |  | Amortized Cost |  | Allowance for Credit Losses |  | Gross Unrealized Gains |  | Gross Unrealized Losses |  | Fair Value
Investment securities available for sale: |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 6,114 |  |  | $ | 0 |  |  | $ | 5 |  |  | $ | (9) |  |  | $ | 6,110 |
RMBS: |  |  |  |  |  |  |  |  |  |
Agency |  | 74,177 |  |  | 0 |  |  | 57 |  |  | (9,527) |  |  | 64,707 |
Non-agency |  | 567 |  |  | (4) |  |  | 64 |  |  | (6) |  |  | 621 |
Total RMBS |  | 74,744 |  |  | (4) |  |  | 121 |  |  | (9,533) |  |  | 65,328 |
Agency CMBS |  | 8,389 |  |  | 0 |  |  | 17 |  |  | (581) |  |  | 7,825 |
Other securities(1) |  | 3,748 |  |  | 0 |  |  | 5 |  |  | (3) |  |  | 3,750 |
Total investment securities available for sale |  | $ | 92,995 |  |  | $ | (4) |  |  | $ | 148 |  |  | $ | (10,126) |  |  | $ | 83,013 |
__________ (1)Includes $1.8 billion and $2.0 billion of asset-backed securities as of September 30, 2025 and December 31, 2024, respectively. The remaining amount is primarily comprised of supranational bonds, foreign government bonds and U.S. agency debt bonds.
Schedule of Available-for-Sale Securities in Gross Unrealized Loss Position | The table below provides the gross unrealized losses and fair value of our securities available for sale aggregated by major security type and the length of time that individual securities have been in a continuous unrealized loss position as of September 30, 2025 and December 31, 2024. The amounts include securities available for sale without an allowance for credit losses. Table 3.2: Securities in a Gross Unrealized Loss Position
|  | September 30, 2025
|  | Less than 12 Months |  | 12 Months or Longer |  | Total
(Dollars in millions) |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
Investment securities available for sale without an allowance for credit losses: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 712 |  |  | $ | (1) |  |  | $ | 1,204 |  |  | $ | (3) |  |  | $ | 1,916 |  |  | $ | (4) |
RMBS: |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | 2,014 |  |  | (5) |  |  | 48,313 |  |  | (7,162) |  |  | 50,327 |  |  | (7,167) |
Non-agency |  | 2 |  |  | 0 |  |  | 8 |  |  | 0 |  |  | 10 |  |  | 0 |
Total RMBS |  | 2,016 |  |  | (5) |  |  | 48,321 |  |  | (7,162) |  |  | 50,337 |  |  | (7,167) |
Agency CMBS |  | 466 |  |  | (2) |  |  | 5,555 |  |  | (388) |  |  | 6,021 |  |  | (390) |
Other securities |  | 530 |  |  | 0 |  |  | 0 |  |  | 0 |  |  | 530 |  |  | 0 |
Total investment securities available for sale in a gross unrealized loss position without an allowance for credit losses(1) |  | $ | 3,724 |  |  | $ | (8) |  |  | $ | 55,080 |  |  | $ | (7,553) |  |  | $ | 58,804 |  |  | $ | (7,561) |
|  | December 31, 2024
|  | Less than 12 Months |  | 12 Months or Longer |  | Total
(Dollars in millions) |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses |  | Fair Value |  | Gross Unrealized Losses
Investment securities available for sale without an allowance for credit losses: |  |  |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 1,724 |  |  | $ | (6) |  |  | $ | 931 |  |  | $ | (3) |  |  | $ | 2,655 |  |  | $ | (9) |
RMBS: |  |  |  |  |  |  |  |  |  |  |  |
Agency |  | 11,324 |  |  | (178) |  |  | 48,707 |  |  | (9,349) |  |  | 60,031 |  |  | (9,527) |
Non-agency |  | 3 |  |  | 0 |  |  | 11 |  |  | (1) |  |  | 14 |  |  | (1) |
Total RMBS |  | 11,327 |  |  | (178) |  |  | 48,718 |  |  | (9,350) |  |  | 60,045 |  |  | (9,528) |
Agency CMBS |  | 700 |  |  | (7) |  |  | 5,677 |  |  | (574) |  |  | 6,377 |  |  | (581) |
Other securities |  | 1,438 |  |  | (3) |  |  | 0 |  |  | 0 |  |  | 1,438 |  |  | (3) |
Total investment securities available for sale in a gross unrealized loss position without an allowance for credit losses(1) |  | $ | 15,189 |  |  | $ | (194) |  |  | $ | 55,326 |  |  | $ | (9,927) |  |  | $ | 70,515 |  |  | $ | (10,121) |
__________ (1) Consists of approxima tely 2,330 and 2,740 se cur ities in gross unrealized loss positions as of September 30, 2025 and December 31, 2024, respectively.
Schedule of Contractual Maturities for Securities | The table below summarizes, as of September 30, 2025, the fair value of our investment securities by major security type and contractual maturity as well as the total fair value, amortized cost and weighted-average yields of our investment securities by contractual maturity. Since borrowers may have the right to call or prepay certain obligations, the expected maturities of our securities are likely to differ from the scheduled contractual maturities presented below. The weighted-average yield below represents the effective yield for the investment securities presented on a pre-tax basis and is calculated based on the amortized cost of each security, inclusive of the contractual coupon, the impact of any premium amortization or discount accretion and any hedge accounting relationships. Table 3.3: Contractual Maturities and Weighted-Average Yields of Securities
|  | September 30, 2025
(Dollars in millions) |  | Due in 1 Year or Less |  | Due > 1 Year through 5 Years |  | Due > 5 Years through 10 Years |  | Due > 10 Years |  | Total
Fair value of securities available for sale: |  |  |  |  |  |  |  |  |  |
U.S. Treasury securities |  | $ | 2,447 |  | $ | 2,390 |  | $ | 3,800 |  | $ | 0 |  | $ | 8,637
RMBS(1): |  |  |  |  |  |  |  |  |  |
Agency |  | 4 |  | 123 |  | 1,135 |  | 67,035 |  | 68,297
Non-agency |  | 0 |  | 0 |  | 31 |  | 571 |  | 602
Total RMBS |  | 4 |  | 123 |  | 1,166 |  | 67,606 |  | 68,899
Agency CMBS(1) |  | 1,156 |  | 2,957 |  | 2,492 |  | 1,835 |  | 8,440
Other securities |  | 151 |  | 3,539 |  | 0 |  | 67 |  | 3,757
Total securities available for sale |  | $ | 3,758 |  | $ | 9,009 |  | $ | 7,458 |  | $ | 69,508 |  | $ | 89,733
Amortized cost of securities available for sale |  | $ | 3,761 |  | $ | 9,071 |  | $ | 7,641 |  | $ | 76,466 |  | $ | 96,939
Weighted-average yield for securities available for sale |  | 4.24% |  | 3.77% |  | 4.09% |  | 3.93% |  | 3.94%
__________ (1)As of September 30, 2025, the weighted-average expected maturities of RMBS and Agency CMBS were 8.0 years and 4.3 years, respectively.

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