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Fair Value Measures - Financial Instruments Carried at Fair Value (Details) - USD ($) $ in Millions | Jun. 30, 2024 | Dec. 31, 2023 | Jun. 30, 2023
--- | --- | --- | ---
Assets: |  |  |
Loans held for sale | $ 1,451 | $ 902 |
Mortgage servicing rights | 1,122 | 1,111 | $ 1,031
Total debt securities available for sale |  |  |
Assets: |  |  |
Total debt securities available for sale | 10,535 | 9,145 |
Mortgage-related Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 8,451 | 6,563 |
GSE certificates |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,153 | 1,221 |
GSE collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 7,130 | 5,162 |
Private label collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 168 | 180 |
Other Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 2,084 | 2,582 |
U. S. Treasury obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 198 |
GSE debentures |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,344 | 1,609 |
Asset-backed securities |  |  |
Assets: |  |  |
Total debt securities available for sale | 269 | 302 |
Municipal bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 6 | 6 |
Corporate bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 341 | 343 |
Foreign notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 35 | 34 |
Capital trust notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 89 | 90 |
Recurring |  |  |
Assets: |  |  |
Total securities | 10,549 | 9,159 |
Mortgage servicing rights | 1,122 | 1,111 |
Total assets at fair value | 13,319 | 11,310 |
Liabilities: |  |  |
Total liabilities at fair value | 77 | 95 |
Recurring | Acquisition, development, and construction |  |  |
Assets: |  |  |
Loans held for sale | 158 | 123 |
Recurring | Commercial and industrial |  |  |
Assets: |  |  |
Loans held for sale | 34 | 9 |
Recurring | Loans and Leases Held for Investment: | Residential first mortgage loans |  |  |
Assets: |  |  |
Loans held for sale | 1,259 | 770 |
Loans held-for-investment | 68 |  |
Recurring | Interest rate swaps and swaptions |  |  |
Assets: |  |  |
Derivative assets | 111 | 115 |
Liabilities: |  |  |
Derivative liabilities | 63 | 59 |
Recurring | Futures |  |  |
Liabilities: |  |  |
Derivative liabilities |  | 1 |
Recurring | Rate lock commitments |  |  |
Assets: |  |  |
Derivative assets | 9 | 12 |
Liabilities: |  |  |
Derivative liabilities | 5 | 3 |
Recurring | Mortgage-backed securities forwards |  |  |
Assets: |  |  |
Derivative assets | 9 | 11 |
Liabilities: |  |  |
Derivative liabilities | 9 | 32 |
Recurring | Total debt securities available for sale |  |  |
Assets: |  |  |
Total debt securities available for sale | 10,535 | 9,145 |
Recurring | Mortgage-related Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 8,451 | 6,563 |
Recurring | GSE certificates |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,153 | 1,221 |
Recurring | GSE collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 7,130 | 5,162 |
Recurring | Private label collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 168 | 180 |
Recurring | Other Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 2,084 | 2,582 |
Recurring | U. S. Treasury obligations |  |  |
Assets: |  |  |
Total debt securities available for sale |  | 198 |
Recurring | GSE debentures |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,344 | 1,609 |
Recurring | Asset-backed securities |  |  |
Assets: |  |  |
Total debt securities available for sale | 269 | 302 |
Recurring | Municipal bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 6 | 6 |
Recurring | Corporate bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 341 | 343 |
Recurring | Foreign notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 35 | 34 |
Recurring | Capital trust notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 89 | 90 |
Recurring | Equity securities: |  |  |
Assets: |  |  |
Equity securities: | 14 | 14 |
Recurring | Mutual funds and common stock |  |  |
Assets: |  |  |
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 | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Loans and Leases 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) | Futures |  |  |
Liabilities: |  |  |
Derivative liabilities |  |  |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Rate lock commitments |  |  |
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) | 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 certificates |  |  |
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) | 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) | U. S. Treasury obligations |  |  |
Assets: |  |  |
Total debt securities available for sale |  | 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) | Asset-backed securities |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
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) | Corporate bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Foreign notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Capital trust notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Equity securities: |  |  |
Assets: |  |  |
Equity securities: | 0 | 0 |
Recurring | Quoted Prices in Active Markets for Identical Assets (Level 1) | Mutual funds and common stock |  |  |
Assets: |  |  |
Equity securities: | 0 | 0 |
Recurring | Significant Other Observable Inputs (Level 2) |  |  |
Assets: |  |  |
Total securities | 10,516 | 8,929 |
Mortgage servicing rights | 0 | 0 |
Total assets at fair value | 12,155 | 9,957 |
Liabilities: |  |  |
Total liabilities at fair value | 72 | 92 |
Recurring | Significant Other Observable Inputs (Level 2) | Acquisition, development, and construction |  |  |
Assets: |  |  |
Loans held for sale | 158 | 123 |
Recurring | Significant Other Observable Inputs (Level 2) | Commercial and industrial |  |  |
Assets: |  |  |
Loans held for sale | 34 | 9 |
Recurring | Significant Other Observable Inputs (Level 2) | Loans and Leases Held for Investment: | Residential first mortgage loans |  |  |
Assets: |  |  |
Loans held for sale | 1,259 | 770 |
Loans held-for-investment | 68 |  |
Recurring | Significant Other Observable Inputs (Level 2) | Interest rate swaps and swaptions |  |  |
Assets: |  |  |
Derivative assets | 111 | 115 |
Liabilities: |  |  |
Derivative liabilities | 63 | 59 |
Recurring | Significant Other Observable Inputs (Level 2) | Futures |  |  |
Liabilities: |  |  |
Derivative liabilities |  | 1 |
Recurring | Significant Other Observable Inputs (Level 2) | Rate lock commitments |  |  |
Assets: |  |  |
Derivative assets | 0 | 0 |
Liabilities: |  |  |
Derivative liabilities | 0 | 0 |
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-backed securities forwards |  |  |
Assets: |  |  |
Derivative assets | 9 | 11 |
Liabilities: |  |  |
Derivative liabilities | 9 | 32 |
Recurring | Significant Other Observable Inputs (Level 2) | Total debt securities available for sale |  |  |
Assets: |  |  |
Total debt securities available for sale | 10,502 | 8,915 |
Recurring | Significant Other Observable Inputs (Level 2) | Mortgage-related Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 8,418 | 6,531 |
Recurring | Significant Other Observable Inputs (Level 2) | GSE certificates |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,153 | 1,221 |
Recurring | Significant Other Observable Inputs (Level 2) | GSE collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 7,130 | 5,162 |
Recurring | Significant Other Observable Inputs (Level 2) | Private label collateralized mortgage obligations |  |  |
Assets: |  |  |
Total debt securities available for sale | 135 | 148 |
Recurring | Significant Other Observable Inputs (Level 2) | Other Debt Securities Available for Sale: |  |  |
Assets: |  |  |
Total debt securities available for sale | 2,084 | 2,384 |
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) | GSE debentures |  |  |
Assets: |  |  |
Total debt securities available for sale | 1,344 | 1,609 |
Recurring | Significant Other Observable Inputs (Level 2) | Asset-backed securities |  |  |
Assets: |  |  |
Total debt securities available for sale | 269 | 302 |
Recurring | Significant Other Observable Inputs (Level 2) | Municipal bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 6 | 6 |
Recurring | Significant Other Observable Inputs (Level 2) | Corporate bonds |  |  |
Assets: |  |  |
Total debt securities available for sale | 341 | 343 |
Recurring | Significant Other Observable Inputs (Level 2) | Foreign notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 35 | 34 |
Recurring | Significant Other Observable Inputs (Level 2) | Capital trust notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 89 | 90 |
Recurring | Significant Other Observable Inputs (Level 2) | Equity securities: |  |  |
Assets: |  |  |
Equity securities: | 14 | 14 |
Recurring | Significant Other Observable Inputs (Level 2) | Mutual funds and common stock |  |  |
Assets: |  |  |
Equity securities: | 14 | 14 |
Recurring | Significant Unobservable Inputs (Level 3) |  |  |
Assets: |  |  |
Total securities | 33 | 32 |
Mortgage servicing rights | 1,122 | 1,111 |
Total assets at fair value | 1,164 | 1,155 |
Liabilities: |  |  |
Total liabilities at fair value | 5 | 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 | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Loans and Leases 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) | Futures |  |  |
Liabilities: |  |  |
Derivative liabilities |  |  |
Recurring | Significant Unobservable Inputs (Level 3) | Rate lock commitments |  |  |
Assets: |  |  |
Derivative assets | 9 | 12 |
Liabilities: |  |  |
Derivative liabilities | 5 | 3 |
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) | 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 certificates |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
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) | 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) | U. S. Treasury obligations |  |  |
Assets: |  |  |
Total debt securities available for sale |  | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | GSE debentures |  |  |
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) | Municipal bonds |  |  |
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) | Foreign notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Capital trust notes |  |  |
Assets: |  |  |
Total debt securities available for sale | 0 | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Equity securities: |  |  |
Assets: |  |  |
Equity securities: | 0 | 0 |
Recurring | Significant Unobservable Inputs (Level 3) | Mutual funds and common stock |  |  |
Assets: |  |  |
Equity securities: | $ 0 | $ 0 |

X
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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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