Other Assets - Quantitative Assumptions Used for MSRs (Details)	12 Months Ended
	Dec. 31, 2022	Dec. 31, 2021
Minimum
Quantitative assumptions used in determining lower of cost or fair value of MSRs
Conditional prepayment rate (as a percent)	7.02%	13.77%
Life in years (of the MSR)	3 years 4 months 6 days	1 year 11 months 26 days
Weighted-average coupon rate (as a percent)	3.55%	3.58%
Discount rate (as a percent)	10.41%	10.00%
Maximum
Quantitative assumptions used in determining lower of cost or fair value of MSRs
Conditional prepayment rate (as a percent)	13.58%	25.19%
Life in years (of the MSR)	7 years 4 months 13 days	5 years 3 months 21 days
Weighted-average coupon rate (as a percent)	6.24%	6.56%
Discount rate (as a percent)	10.54%	10.01%
Weighted Average
Quantitative assumptions used in determining lower of cost or fair value of MSRs
Conditional prepayment rate (as a percent)	7.11%	14.61%
Life in years (of the MSR)	7 years 2 months 12 days	5 years 10 days
Weighted-average coupon rate (as a percent)	3.68%	3.71%
Discount rate (as a percent)	10.51%	10.00%