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Fair Value Measurement - Financial Instruments Carried at Fair Value (Details) - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Assets: |  |
Total debt securities available for sale | $ 10,402 | $ 9,145
Mortgage servicing rights | 26 | 1,111
Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 10,402 | 9,145
Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 8,573 | 6,563
GSE collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 7,304 | 5,162
GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,106 | 1,221
Private label collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 163 | 180
Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 1,829 | 2,582
GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,203 | 1,609
Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 308 | 343
Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 236 | 302
U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale |  | 198
Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 5 | 6
Recurring |  |
Assets: |  |
Total securities | 10,416 | 9,159
Mortgage servicing rights | 26 | 1,111
Total assets at fair value | 11,031 | 11,310
Liabilities: |  |
Total liabilities at fair value | 35 | 95
Recurring | Acquisition, development, and construction |  |
Assets: |  |
Loans held for sale | 182 | 123
Recurring | Commercial and industrial |  |
Assets: |  |
Loans held for sale |  | 9
Recurring | Loans held for investment | Residential first mortgage loans |  |
Assets: |  |
Loans held for sale | 382 | 770
Loans held for investment | 0 |
Recurring | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 15 | 115
Liabilities: |  |
Derivative liabilities | 30 | 59
Recurring | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 7 | 11
Liabilities: |  |
Derivative liabilities | 2 | 32
Recurring | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 3 | 12
Liabilities: |  |
Derivative liabilities | 3 | 3
Recurring | Futures |  |
Liabilities: |  |
Derivative liabilities |  | 1
Recurring | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 10,402 | 9,145
Recurring | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 8,573 | 6,563
Recurring | GSE collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 7,304 | 5,162
Recurring | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,106 | 1,221
Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 163 | 180
Recurring | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 1,829 | 2,582
Recurring | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,203 | 1,609
Recurring | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 308 | 343
Recurring | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 236 | 302
Recurring | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale |  | 198
Recurring | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 82 | 130
Recurring | Equity securities: |  |
Assets: |  |
Total equity securities | 14 | 14
Recurring | Mutual funds and common stock |  |
Assets: |  |
Total equity securities | 14 | 14
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) |  |
Assets: |  |
Total securities | 0 | 198
Mortgage servicing rights | 0 | 0
Total assets at fair value | 0 | 198
Liabilities: |  |
Total liabilities at fair value | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Acquisition, development, and construction |  |
Assets: |  |
Loans held for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Commercial and industrial |  |
Assets: |  |
Loans held for sale |  | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans held for investment | Residential first mortgage loans |  |
Assets: |  |
Loans held for sale | 0 | 0
Loans held for investment | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Futures |  |
Liabilities: |  |
Derivative liabilities |  | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 0 | 198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Private label collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 0 | 198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale |  | 198
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities: |  |
Assets: |  |
Total equity securities | 0 | 0
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds and common stock |  |
Assets: |  |
Total equity securities | 0 | 0
Recurring | Significant Other Observable Inputs (Level 2) |  |
Assets: |  |
Total securities | 10,383 | 8,929
Mortgage servicing rights | 0 | 0
Total assets at fair value | 10,969 | 9,957
Liabilities: |  |
Total liabilities at fair value | 32 | 92
Recurring | Significant Other Observable Inputs (Level 2) | Acquisition, development, and construction |  |
Assets: |  |
Loans held for sale | 182 | 123
Recurring | Significant Other Observable Inputs (Level 2) | Commercial and industrial |  |
Assets: |  |
Loans held for sale |  | 9
Recurring | Significant Other Observable Inputs (Level 2) | Loans held for investment | Residential first mortgage loans |  |
Assets: |  |
Loans held for sale | 382 | 770
Loans held for investment | 0 |
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 15 | 115
Liabilities: |  |
Derivative liabilities | 30 | 59
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 7 | 11
Liabilities: |  |
Derivative liabilities | 2 | 32
Recurring | Significant Other Observable Inputs (Level 2) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Other Observable Inputs (Level 2) | Futures |  |
Liabilities: |  |
Derivative liabilities |  | 1
Recurring | Significant Other Observable Inputs (Level 2) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 10,369 | 8,915
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 8,540 | 6,531
Recurring | Significant Other Observable Inputs (Level 2) | GSE collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 7,304 | 5,162
Recurring | Significant Other Observable Inputs (Level 2) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 1,106 | 1,221
Recurring | Significant Other Observable Inputs (Level 2) | Private label collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 130 | 148
Recurring | Significant Other Observable Inputs (Level 2) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 1,829 | 2,384
Recurring | Significant Other Observable Inputs (Level 2) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 1,203 | 1,609
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 308 | 343
Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 236 | 302
Recurring | Significant Other Observable Inputs (Level 2) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale |  | 0
Recurring | Significant Other Observable Inputs (Level 2) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 82 | 130
Recurring | Significant Other Observable Inputs (Level 2) | Equity securities: |  |
Assets: |  |
Total equity securities | 14 | 14
Recurring | Significant Other Observable Inputs (Level 2) | Mutual funds and common stock |  |
Assets: |  |
Total equity securities | 14 | 14
Recurring | Significant Unobservable Inputs (Level 3) |  |
Assets: |  |
Total securities | 33 | 32
Mortgage servicing rights | 26 | 1,111
Total assets at fair value | 62 | 1,155
Liabilities: |  |
Total liabilities at fair value | 3 | 3
Recurring | Significant Unobservable Inputs (Level 3) | Acquisition, development, and construction |  |
Assets: |  |
Loans held for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Commercial and industrial |  |
Assets: |  |
Loans held for sale |  | 0
Recurring | Significant Unobservable Inputs (Level 3) | Loans held for investment | Residential first mortgage loans |  |
Assets: |  |
Loans held for sale | 0 | 0
Loans held for investment | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Interest rate swaps and swaptions |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-backed securities forwards |  |
Assets: |  |
Derivative assets | 0 | 0
Liabilities: |  |
Derivative liabilities | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Rate lock commitments (fallout-adjusted) |  |
Assets: |  |
Derivative assets | 3 | 12
Liabilities: |  |
Derivative liabilities | 3 | 3
Recurring | Significant Unobservable Inputs (Level 3) | Futures |  |
Liabilities: |  |
Derivative liabilities |  | 0
Recurring | Significant Unobservable Inputs (Level 3) | Total debt securities available for sale |  |
Assets: |  |
Total debt securities available for sale | 33 | 32
Recurring | Significant Unobservable Inputs (Level 3) | Mortgage-related Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 33 | 32
Recurring | Significant Unobservable Inputs (Level 3) | GSE collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | GSE certificates |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Private label collateralized mortgage obligations |  |
Assets: |  |
Total debt securities available for sale | 33 | 32
Recurring | Significant Unobservable Inputs (Level 3) | Other Debt Securities Available for Sale: |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | GSE debentures |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Corporate bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Asset-backed securities |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | U. S. Treasury obligations |  |
Assets: |  |
Total debt securities available for sale |  | 0
Recurring | Significant Unobservable Inputs (Level 3) | Municipal bonds |  |
Assets: |  |
Total debt securities available for sale | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities: |  |
Assets: |  |
Total equity securities | 0 | 0
Recurring | Significant Unobservable Inputs (Level 3) | Mutual funds and common stock |  |
Assets: |  |
Total equity securities | $ 0 | $ 0

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- Definition Fair value, after the effects of master netting arrangements, of a financial asset or other contract with one or more underlyings, notional amount or payment provision or both, and the contract can be net settled by means outside the contract or delivery of an asset. 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