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Fair Value Measurement - Quantitative Information about Recurring Level 3 Fair Value Financial Instruments (Details) | Dec. 31, 2024 USD ($) yr | Dec. 31, 2023 USD ($) yr
--- | --- | ---
Assets: |  |
Mortgage servicing rights | $ 26,000,000 | $ 1,111,000,000
Fair Value | 10,402,000,000 | 9,145,000,000
Private label collateralized mortgage obligations |  |
Assets: |  |
Fair Value | 163,000,000 | 180,000,000
Recurring |  |
Assets: |  |
Mortgage servicing rights | 26,000,000 | 1,111,000,000
Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair Value | 163,000,000 | 180,000,000
Recurring | Rate lock commitments (fallout-adjusted) |  |
Liabilities: |  |
Rate lock commitments (net) | 3,000,000 | 3,000,000
Significant Unobservable Inputs (Level 3) | Recurring |  |
Assets: |  |
Mortgage servicing rights | 26,000,000 | 1,111,000,000
Significant Unobservable Inputs (Level 3) | Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair Value | 33,000,000 | 32,000,000
Significant Unobservable Inputs (Level 3) | Recurring | Rate lock commitments (fallout-adjusted) |  |
Liabilities: |  |
Rate lock commitments (net) | $ 3,000,000 | $ 3,000,000
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Minimum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.008 | 0.050
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Maximum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.164 | 0.217
Significant Unobservable Inputs (Level 3) | Option adjusted spread | Weighted average | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.021 | 0.054
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Minimum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.000 | 0.000
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Maximum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.117 | 0.100
Significant Unobservable Inputs (Level 3) | Constant prepayment rate | Weighted average | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 0.094 | 0.079
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Minimum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 65 | 65
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Maximum | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 90 | 90
Significant Unobservable Inputs (Level 3) | Weighted average cost to service per loan | Weighted average | Recurring |  |
Assets: |  |
Mortgage servicing rights, measurement input | 71 | 69
Significant Unobservable Inputs (Level 3) | Constant default rates | Minimum | Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair value, measurement input | 0.0010 | 0.0010
Significant Unobservable Inputs (Level 3) | Constant default rates | Maximum | Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair value, measurement input | 0.0020 | 0.0030
Significant Unobservable Inputs (Level 3) | Weighted average life | Minimum | Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair value, measurement input | yr | 0.055 | 0.082
Significant Unobservable Inputs (Level 3) | Weighted average life | Maximum | Recurring | Private label collateralized mortgage obligations |  |
Assets: |  |
Fair value, measurement input | yr | 0.122 | 0.118
Significant Unobservable Inputs (Level 3) | Origination pull-through rate | Recurring | Rate lock commitments (fallout-adjusted) |  |
Liabilities: |  |
Rate lock commitments (net), measurement input | 0.5040 | 64.3
Significant Unobservable Inputs (Level 3) | Rate lock commitments (fallout-adjusted) | Recurring | Rate lock commitments (fallout-adjusted) |  |
Liabilities: |  |
Rate lock commitments (net) | $ 0 | $ 9,000,000

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- Definition Fair value, after the effects of master netting arrangements, of a financial liability or 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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