v3.26.1
Other Assets - Mortgage Servicing Rights - Quantitative Assumptions Used for MSRs (Details)
 6 Months Ended 12 Months Ended
Jun. 30, 2026
Dec. 31, 2025
Minimum    
Quantitative assumptions used in determining lower of cost or fair value of MSRs    
Conditional prepayment rate (as a percent) 6.28% 6.31%
Life in years (of the MSR) 6 years 21 days 6 years 2 months 4 days
Weighted-average coupon rate (as a percent) 3.78% 3.77%
Discount rate (as a percent) 10.39% 10.37%
Maximum    
Quantitative assumptions used in determining lower of cost or fair value of MSRs    
Conditional prepayment rate (as a percent) 6.76% 7.00%
Life in years (of the MSR) 7 years 21 days 7 years 1 month 2 days
Weighted-average coupon rate (as a percent) 4.10% 4.10%
Discount rate (as a percent) 10.48% 10.45%
Weighted Average    
Quantitative assumptions used in determining lower of cost or fair value of MSRs    
Conditional prepayment rate (as a percent) 6.63% 6.83%
Life in years (of the MSR) 6 years 11 months 15 days 6 years 11 months 4 days
Weighted-average coupon rate (as a percent) 3.84% 3.84%
Discount rate (as a percent) 10.43% 10.40%