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Investment Securities - Schedule Of Amortized Cost And Fair Value By Contractual Maturity (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Held-to-Maturity, Amortized Cost |  |
Within 1 year | $ 0 |
After 1 year through 5 years | 0 |
After 5 years through 10 years | 0 |
After 10 years | 0 |
Subtotal | 0 |
Government agency issued MBS and CMO | 1,323 |
Total | 1,323 |
Held-to-Maturity, Fair Value |  |
Within 1 year | 0 |
After 1 year through 5 years | 0 |
After 5 years through 10 years | 0 |
After 10 years | 0 |
Subtotal | 0 |
Government agency issued MBS and CMO | 1,161 |
Fair Value | 1,161 | $ 1,209
Available-for-Sale, Amortized Cost |  |
Within 1 year | 36 |
After 1 year through 5 years | 99 |
After 5 years through 10 years | 397 |
After 10 years | 1,416 |
Subtotal | 1,948 |
Government agency issued MBS and CMO | 7,548 |
Securities available for sale, amortized cost | 9,496 |
Available-for-Sale, Fair Value |  |
Within 1 year | 36 |
After 1 year through 5 years | 95 |
After 5 years through 10 years | 364 |
After 10 years | 1,266 |
Subtotal | 1,761 |
Government agency issued MBS and CMO | 6,630 |
Securities available-for-sale | $ 8,391 | $ 8,836

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