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Loans and Leases - Collateral (Details) - Asset pledged as collateral - USD ($) $ in Millions | Dec. 31, 2024 | Dec. 31, 2023
--- | --- | ---
Real Property |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | $ 2,419 | $ 614
Real Property | Loans held for investment | Multi-family |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 1,817 | 253
Real Property | Loans held for investment | Commercial real estate |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 537 | 256
Real Property | Loans held for investment | One-to-four family first mortgage |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 48 | 105
Real Property | Loans held for investment | Acquisition, development, and construction |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 17 | 0
Real Property | Other loans held for investment | Commercial and industrial |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 0
Other |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 120
Other | Loans held for investment | Multi-family |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 0
Other | Loans held for investment | Commercial real estate |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 0
Other | Loans held for investment | One-to-four family first mortgage |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 0
Other | Loans held for investment | Acquisition, development, and construction |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | 0 | 0
Other | Other loans held for investment | Commercial and industrial |  |
Financial Instruments Owned and Pledged as Collateral [Line Items] |  |
Total collateral-dependent loans held for investment | $ 0 | $ 120

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- Definition Line items represent financial concepts included in a table. These concepts are used to disclose reportable information associated with domain members defined in one or many axes to the table. + References Reference 1: http://www.xbrl.org/2003/role/disclosureRef -Topic 946 -SubTopic 210 -Name Accounting Standards Codification -Section S99 -Paragraph 1 -Subparagraph (SX 210.6-04(11)) -Publisher FASB -URI https://asc.fasb.org/1943274/2147479170/946-210-S99-1 Reference 2: http://www.xbrl.org/2003/role/disclosureRef -Topic 860 -SubTopic 30 -Name Accounting Standards Codification -Section 45 -Paragraph 1 -Publisher FASB -URI https://asc.fasb.org/1943274/2147481444/860-30-45-1 + Details
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- Definition The aggregate fair value as of the balance sheet date of financial instruments and other positions owned by the entity including: (1) mortgages, mortgage-backed and asset backed securities; (2) US government and agency obligations; (3) state and municipal government obligations; (4) other sovereign government debt; (5) corporate obligations; (6) corporate equities; (7) principal investments; (8) derivative contracts; and (9) physical commodities. Includes both pledged and unpledged holdings. + References Reference 1: http://www.xbrl.org/2009/role/commonPracticeRef -Topic 940 -SubTopic 320 -Name Accounting Standards Codification -Section 45 -Paragraph 2 -Publisher FASB -URI https://asc.fasb.org/1943274/2147479035/940-320-45-2 + Details
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