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Commitment and Contingencies - Off Balance Sheet (Details) - USD ($) $ in Millions | Dec. 31, 2023 | Dec. 31, 2022
--- | --- | ---
Other Commitments [Line Items] |  |
Commercial, performance stand-by, and financial stand-by letters of credit | $ 915 | $ 541
Total commitments | 24,976 | 22,368
Total loan commitments |  |
Other Commitments [Line Items] |  |
Commitments | 24,061 | 21,827
Multi-family and commercial real estate |  |
Other Commitments [Line Items] |  |
Commitments | 52 | 216
One-to-four family first mortgage |  |
Other Commitments [Line Items] |  |
Commitments | 1,694 | 2,066
Acquisition, development, and construction |  |
Other Commitments [Line Items] |  |
Commitments | 3,926 | 3,539
Warehouse loan commitments |  |
Other Commitments [Line Items] |  |
Commitments | 7,074 | 8,042
Other |  |
Other Commitments [Line Items] |  |
Commitments | $ 11,315 | $ 7,964

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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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