v3.24.0.1
Net Capital Requirements - Summary of Capital Adequacy Requirements (Detail)
$ in Millions
Dec. 31, 2023
USD ($)
Dec. 31, 2022
USD ($)
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]    
Total capital (to risk weighted assets), Actual, Amount $ 775 $ 691
Total capital (to risk weighted assets), Actual, Ratio 0.1458 0.1261
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Amount $ 43 $ 44
Total capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio 0.08 0.08
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 53 $ 55
Total capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.10 0.10
Tier 1 capital (to risk weighted assets), Actual, Amount $ 771 $ 684
Tier 1 capital (to risk weighted assets), Actual, Ratio 0.1451 0.1248
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount $ 32 $ 33
Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio 0.06 0.06
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 43 $ 44
Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.08 0.08
Tier 1 capital (to average assets), Actual, Amount $ 771 $ 684
Tier 1 capital (to average assets), Actual, Ratio 0.659 0.628
Tier 1 capital (to average assets), For Capital Adequacy Purposes, Amount $ 47 $ 44
Tier 1 capital (to average assets), For Capital Adequacy Purposes, Ratio 0.04 0.04
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 59 $ 54
Tier 1 capital (to average assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 0.05 0.05
Common Equity Tier 1 capital (to risk weighted assets), Actual, Amount $ 771 $ 684
Common Equity Tier 1 capital (to risk weighted assets), Actual, Ratio 14.51% 12.48%
Common Equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Amount $ 24 $ 25
Common Equity Tier 1 capital (to risk weighted assets), For Capital Adequacy Purposes, Ratio 4.50% 4.50%
Common Equity Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Amount $ 35 $ 36
Common Equity Tier 1 capital (to risk weighted assets), To Be Well Capitalized Under Prompt Corrective Action Provisions, Ratio 6.50% 6.50%