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Commitments and Contingencies - Off Balance Sheet (Details) - USD ($) $ in Millions | Sep. 30, 2024 | Dec. 31, 2023
--- | --- | ---
Other Commitments [Line Items] |  |
Commercial, performance stand-by, and financial stand-by letters of credit | $ 827 | $ 915
Total commitments | 16,990 | 24,976
Total loan commitments |  |
Other Commitments [Line Items] |  |
Total loan commitments | 16,163 | 24,061
Multi-family and commercial real estate |  |
Other Commitments [Line Items] |  |
Total loan commitments | 32 | 52
One-to-four family including interest rate locks |  |
Other Commitments [Line Items] |  |
Total loan commitments | 2,875 | 1,694
Acquisition, development, and construction |  |
Other Commitments [Line Items] |  |
Total loan commitments | 2,787 | 3,926
Warehouse loan commitments |  |
Other Commitments [Line Items] |  |
Total loan commitments | 0 | 7,074
Other loan commitments |  |
Other Commitments [Line Items] |  |
Total loan commitments | $ 10,469 | $ 11,315

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- Definition Other Commitments And Guarantor Obligations, Maximum Exposure, Undiscounted + References No definition available. + Details
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- Definition Maximum potential amount of future payments (undiscounted) the guarantor could be required to make under the guarantee or each group of similar guarantees before reduction for potential recoveries under recourse or collateralization provisions. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 460 -SubTopic 10 -Name Accounting Standards Codification -Section 50 -Paragraph 4 -Subparagraph (b)(1) -Publisher FASB -URI https://asc.fasb.org/1943274/2147482425/460-10-50-4 + Details
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- Definition Minimum amount of other commitment not otherwise specified in the taxonomy. Excludes commitments explicitly modeled in the taxonomy, including but not limited to, long-term and short-term purchase commitments, recorded and unrecorded purchase obligations, supply commitments, registration payment arrangements, leases, debt, product warranties, guarantees, environmental remediation obligations, and pensions. + References No definition available. + Details
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