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Loans and Leases - Narrative (Details) $ in Millions | 3 Months Ended |
--- | --- | ---
Mar. 31, 2024 USD ($) loan | Dec. 31, 2023 USD ($)
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans held for sale, at fair value | $ 981 | $ 1,182
LGG loans | 507 |
Loans 90 days or greater past due and still accruing | $ 0 | 0
Largest real estate loans | loan | 350 |
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively) | $ 82,327 | 84,619
Residential mortgage loans in process of foreclosure | 74 | 81
Financing receivable increase | 2,300 |
One-to-four family first mortgage | Term Extension |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans modified that subsequently defaulted | 3 |
One-to-four family first mortgage | Combination - Interest Rate Reduction & Term Extension |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans modified that subsequently defaulted | 3 |
Mortgage Loans: |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively) | 56,196 | 56,708
Mortgage Loans: | One-to-four family first mortgage |  |
Accounts, Notes, Loans and Financing Receivable [Line Items] |  |
Loans and leases held for investment, net of deferred loan fees and costs ($66 and zero measured at fair value at March 31, 2024 and December 31, 2023, respectively) | $ 5,807 | $ 6,061

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