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Borrowed Funds - Junior Subordinated Debentures (Details) - USD ($) $ in Millions | 12 Months Ended |
--- | --- | ---
Dec. 31, 2024 | Dec. 31, 2023
Debt Instrument |  |
Capital Securities Amount Outstanding | $ 589 |
Flagstar Bancorp |  |
Debt Instrument |  |
Fair value adjustment | (28) |
As Initially Reported |  |
Debt Instrument |  |
Junior Subordinated Debentures Amount Outstanding | $ 610 | $ 609
New York Community Capital Trust V (BONUSES Units) |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.00% |
Junior Subordinated Debentures Amount Outstanding | $ 148 |
Capital Securities Amount Outstanding | $ 141 |
New York Community Capital Trust X |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.22% |
Junior Subordinated Debentures Amount Outstanding | $ 124 |
Capital Securities Amount Outstanding | $ 120 |
PennFed Capital Trust III |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 7.87% |
Junior Subordinated Debentures Amount Outstanding | $ 31 |
Capital Securities Amount Outstanding | $ 30 |
New York Community Capital Trust XI |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.24% |
Junior Subordinated Debentures Amount Outstanding | $ 59 |
Capital Securities Amount Outstanding | $ 58 |
Flagstar Statutory Trust II |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 7.84% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust III |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 8.17% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust IV |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 7.84% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust V |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.92% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust VI |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.92% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust VII |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.37% |
Junior Subordinated Debentures Amount Outstanding | $ 51 |
Capital Securities Amount Outstanding | $ 50 |
Flagstar Statutory Trust VIII |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.42% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust IX |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 6.07% |
Junior Subordinated Debentures Amount Outstanding | $ 26 |
Capital Securities Amount Outstanding | $ 25 |
Flagstar Statutory Trust X |  |
Debt Instrument |  |
Interest Rate of Capital Securities and Debentures | 7.12% |
Junior Subordinated Debentures Amount Outstanding | $ 15 |
Capital Securities Amount Outstanding | $ 15 |

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