v3.26.1
Allowance for Credit Losses on Loans and Leases - Schedule of Activity in the Allowance for Loan and Lease Losses (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended 12 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Dec. 31, 2025
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period $ 954 $ 1,168 $ 1,030 $ 1,201 $ 1,201
Charge-offs (120) (140) (233) (264)  
Recoveries 20 23 55 32  
Provision for (recovery of) credit losses on loans and leases 15 55 17 137  
Balance, end of period 869 1,106 869 1,106 1,030
Loans and leases held for investment: | Multi-family          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 509 609 549 639 639
Charge-offs (81) (105) (162) (185) (285)
Recoveries 1 9 10 9  
Provision for (recovery of) credit losses on loans and leases 10 25 42 75  
Balance, end of period 439 538 439 538 549
Loans and leases held for investment: | Commercial Real Estate          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 189 289 229 304 304
Charge-offs (13) (20) (31) (22) (41)
Recoveries 12 7 22 7  
Provision for (recovery of) credit losses on loans and leases (35) 42 (67) 29  
Balance, end of period 153 318 153 318 229
Loans and leases held for investment: | One-to-Four Family First Mortgage          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 33 37 35 39 39
Charge-offs (1) (1) (2) (2) (4)
Recoveries 0 0 0 0  
Provision for (recovery of) credit losses on loans and leases 3 (3) 2 (4)  
Balance, end of period 35 33 35 33 35
Loans and leases held for investment: | Commercial and Industrial          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 161 166 150 150 150
Charge-offs (18) (7) (23) (41) (87)
Recoveries 5 4 18 10  
Provision for (recovery of) credit losses on loans and leases 29 (4) 32 40  
Balance, end of period 177 159 177 159 150
Other          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, beginning of period 62 67 67 69 69
Charge-offs (7) (7) (15) (14)  
Recoveries 2 3 5 6  
Provision for (recovery of) credit losses on loans and leases 8 (5) 8 (3)  
Balance, end of period 65 58 65 58 $ 67
Other | Commercial and Industrial          
Financing Receivable, Excluding Accrued Interest, Allowance for Credit Loss [Roll Forward]          
Balance, end of period $ 177 $ 159 $ 177 $ 159