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Loans and Leases - Loans Held for Investment by Credit Quality Indicator (Details) - USD ($) $ in Millions | 9 Months Ended |
--- | --- | ---
Sep. 30, 2023 | Sep. 30, 2022 | Dec. 31, 2022
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | $ 10,745 |  |
2022 | 17,735 |  |
2021 | 12,220 |  |
2020 | 11,399 |  |
2019 | 6,824 |  |
Prior To 2019 | 14,295 |  |
Revolving Loans | 10,436 |  |
Revolving Loans Converted to Term Loans | 341 |  |
Total | 83,995 |  | $ 69,001
Current-period gross writeoffs |  |  |
Total | (34) | $ (5) |
Mortgage Loans: |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 2,264 |  |
2022 | 13,759 |  |
2021 | 10,206 |  |
2020 | 9,761 |  |
2019 | 5,789 |  |
Prior To 2019 | 13,215 |  |
Revolving Loans | 1,972 |  |
Revolving Loans Converted to Term Loans | 10 |  |
Total | 56,976 |  | 54,473
Current-period gross writeoffs |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | (2) |  |
Prior To 2019 | (17) |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | (19) | (5) |
Mortgage Loans: | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 2,218 |  |
2022 | 13,695 |  |
2021 | 10,148 |  |
2020 | 9,547 |  |
2019 | 5,247 |  |
Prior To 2019 | 11,115 |  |
Revolving Loans | 1,972 |  |
Revolving Loans Converted to Term Loans | 7 |  |
Total | 53,949 |  | 52,195
Mortgage Loans: | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 2 |  |
2022 | 46 |  |
2021 | 26 |  |
2020 | 176 |  |
2019 | 211 |  |
Prior To 2019 | 758 |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | 1,219 |  | 1,106
Mortgage Loans: | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 44 |  |
2022 | 18 |  |
2021 | 32 |  |
2020 | 38 |  |
2019 | 331 |  |
Prior To 2019 | 1,342 |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 3 |  |
Total | 1,808 |  | 1,172
Mortgage Loans: | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 0 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior To 2019 | 0 |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | 0 |  | 0
Mortgage Loans: | Multi-family |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 37,698 |  | 38,130
Mortgage Loans: | Multi-family | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 36,027 |  | 36,622
Mortgage Loans: | Multi-family | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 776 |  | 864
Mortgage Loans: | Multi-family | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 895 |  | 644
Mortgage Loans: | Multi-family | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 0 |  | 0
Mortgage Loans: | Commercial real estate |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 10,486 |  | 8,526
Mortgage Loans: | Commercial real estate | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 9,248 |  | 7,871
Mortgage Loans: | Commercial real estate | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 425 |  | 230
Mortgage Loans: | Commercial real estate | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 813 |  | 425
Mortgage Loans: | Commercial real estate | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 0 |  | 0
Mortgage Loans: | One-to-four family first mortgage |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 5,882 |  | 5,821
Mortgage Loans: | One-to-four family first mortgage | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 5,780 |  | 5,710
Mortgage Loans: | One-to-four family first mortgage | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 3 |  | 8
Mortgage Loans: | One-to-four family first mortgage | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 99 |  | 103
Mortgage Loans: | One-to-four family first mortgage | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 0 |  | 0
Mortgage Loans: | Acquisition, development, and construction |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 2,910 |  | 1,996
Mortgage Loans: | Acquisition, development, and construction | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 2,894 |  | 1,992
Mortgage Loans: | Acquisition, development, and construction | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 15 |  | 4
Mortgage Loans: | Acquisition, development, and construction | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 1 |  | 0
Mortgage Loans: | Acquisition, development, and construction | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 0 |  | 0
Other Loans: |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 8,481 |  |
2022 | 3,976 |  |
2021 | 2,014 |  |
2020 | 1,638 |  |
2019 | 1,035 |  |
Prior To 2019 | 1,080 |  |
Revolving Loans | 8,464 |  |
Revolving Loans Converted to Term Loans | 331 |  |
Total | 27,019 |  | 14,528
Current-period gross writeoffs |  |  |
2023 | (6) |  |
2022 | (2) |  |
2021 | (1) |  |
2020 | (1) |  |
2019 | (2) |  |
Prior To 2019 | (3) |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | (15) | $ 0 |
Other Loans: | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 8,458 |  |
2022 | 3,924 |  |
2021 | 1,980 |  |
2020 | 1,619 |  |
2019 | 993 |  |
Prior To 2019 | 1,021 |  |
Revolving Loans | 8,418 |  |
Revolving Loans Converted to Term Loans | 321 |  |
Total | 26,734 |  | 14,446
Other Loans: | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 7 |  |
2022 | 24 |  |
2021 | 6 |  |
2020 | 3 |  |
2019 | 37 |  |
Prior To 2019 | 13 |  |
Revolving Loans | 4 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | 94 |  | 18
Other Loans: | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 16 |  |
2022 | 28 |  |
2021 | 21 |  |
2020 | 16 |  |
2019 | 5 |  |
Prior To 2019 | 46 |  |
Revolving Loans | 42 |  |
Revolving Loans Converted to Term Loans | 10 |  |
Total | 184 |  | 64
Other Loans: | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
2023 | 0 |  |
2022 | 0 |  |
2021 | 7 |  |
2020 | 0 |  |
2019 | 0 |  |
Prior To 2019 | 0 |  |
Revolving Loans | 0 |  |
Revolving Loans Converted to Term Loans | 0 |  |
Total | 7 |  | 0
Other Loans: | Commercial and industrial loans and lease financing |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 24,423 |  | 12,276
Other Loans: | Commercial and industrial loans and lease financing | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 24,162 |  | 12,208
Other Loans: | Commercial and industrial loans and lease financing | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 94 |  | 18
Other Loans: | Commercial and industrial loans and lease financing | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 160 |  | 50
Other Loans: | Commercial and industrial loans and lease financing | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 7 |  | 0
Other Loans: | Other |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 2,596 |  | 2,252
Other Loans: | Other | Pass(2) |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 2,572 |  | 2,238
Other Loans: | Other | Special mention |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 0 |  | 0
Other Loans: | Other | Substandard |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | 24 |  | 14
Other Loans: | Other | Doubtful |  |  |
Financing Receivable, Excluding Accrued Interest, before Allowance for Credit Loss, by Origination Year [Abstract] |  |  |
Total | $ 0 |  | $ 0

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