v3.26.1
Regulatory Capital Requirements (Details)
$ in Millions
Mar. 31, 2026
USD ($)
Dec. 31, 2025
USD ($)
Broker-Dealer, Net Capital Requirement, SEC Regulation [Abstract]    
Adjusted total assets $ 4,419,000 $ 4,423,000
Risk-weighted assets 1,450,000 1,411,000
Total capital (statutory)    
Available Capital (Deficit) (less than in 2026) 500 (3,000)
Minimum Capital Requirement 116,000 113,000
Total Capital Requirement (including Buffers) $ 116,000 $ 113,000
Available Capital (Deficit) Ratio 0 (0.002)
Minimum Capital Ratio Requirement 0.080 0.080
Total Capital Requirement Ratio (including Buffers) 0.080 0.080
Common equity tier 1 capital    
Available Capital (Deficit) $ (37,000) $ (41,000)
Minimum Capital Requirement 65,000 63,000
Total Capital Requirement (including Buffers) $ 142,000 $ 143,000
Available Capital (Deficit) Ratio (0.025) (0.029)
Minimum Capital Ratio Requirement 0.045 0.045
Total Capital Requirement Ratio (including Buffers) 0.098 0.102
Tier 1 capital    
Available Capital (Deficit) $ (18,000) $ (22,000)
Minimum Capital Requirement 87,000 85,000
Total Capital Requirement (including Buffers) $ 164,000 $ 165,000
Available Capital (Deficit) Ratio (0.012) (0.016)
Minimum Capital Ratio Requirement 0.060 0.060
Total Capital Requirement Ratio (including Buffers) 0.113 0.117
Adjusted total capital    
Available Capital (Deficit) $ (18,000) $ (22,000)
Minimum Capital Requirement 116,000 113,000
Total Capital Requirement (including Buffers) $ 193,000 $ 193,000
Available Capital (Deficit) Ratio (0.012) (0.016)
Minimum Capital Ratio Requirement 0.080 0.080
Total Capital Requirement Ratio (including Buffers) 0.133 0.137
Core capital (statutory)    
Available Capital (Deficit) $ (8,000) $ (12,000)
Minimum Capital Requirement 110,000 111,000
Total Capital Requirement (including Buffers) $ 110,000 $ 111,000
Available Capital (Deficit) Ratio (0.002) (0.003)
Minimum Capital Ratio Requirement 0.025 0.025
Total Capital Requirement Ratio (including Buffers) 0.025 0.025
Tier 1 capital    
Available Capital (Deficit) $ (18,000) $ (22,000)
Minimum Capital Requirement 110,000 111,000
Total Capital Requirement (including Buffers) $ 132,000 $ 134,000
Available Capital (Deficit) Ratio (0.004) (0.005)
Minimum Capital Ratio Requirement 0.025 0.025
Total Capital Requirement Ratio (including Buffers) 0.030 0.030
Senior preferred stock $ 120,836 $ 120,836