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Loans and Leases - Quality of Non-Accrual Loans Held for Sale (Details) - USD ($) $ in Millions	Mar. 31, 2025	Dec. 31, 2024
Financing Receivable, Recorded Investment, Past Due
Total non-accrual loans held for sale	$ 21	$ 323
Loans and Leases Held for Investment: | Multi-family
Financing Receivable, Recorded Investment, Past Due
Total non-accrual loans held for sale	0	51
Loans and Leases Held for Investment: | Commercial real estate
Financing Receivable, Recorded Investment, Past Due
Total non-accrual loans held for sale	0	215
Loans and Leases Held for Investment: | One-to-four family first mortgage
Financing Receivable, Recorded Investment, Past Due
Total non-accrual loans held for sale	3	57
Loans and Leases Held for Investment: | Commercial and industrial
Financing Receivable, Recorded Investment, Past Due
Total non-accrual loans held for sale	$ 18	$ 0

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- Definition

Amortized cost of financing receivable on nonaccrual status. Excludes net investment in lease.

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