v3.26.3
FAIR VALUE - Schedule of Quantitative Information on Level 3 Recurring Assets and Liabilities (Details)
$ in Millions
Sep. 30, 2026
USD ($)
month
Dec. 31, 2025
USD ($)
month
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
MSRs $ 83 $ 80
Level 3    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities $ 890 $ 992
Level 3 | Liquidity discount | Minimum | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.0000 0.0000
Level 3 | Liquidity discount | Maximum | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.2500 0.2500
Level 3 | Liquidity discount | Weighted Average | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.2400 0.2400
Level 3 | Multiples of revenue | Minimum | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.008 0.008
Level 3 | Multiples of revenue | Maximum | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.179 0.179
Level 3 | Multiples of revenue | Weighted Average | Valuation, Market Approach    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Equity securities, measurement input 0.068 0.038
Level 3 | Beneficial interest in Structured LLC    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
MSRs $ 1,013 $ 1,097
Level 3 | Beneficial interest in Structured LLC | Discount spread | Minimum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0275 0.0275
Level 3 | Beneficial interest in Structured LLC | Discount spread | Maximum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.2500 0.2500
Level 3 | Beneficial interest in Structured LLC | Discount spread | Weighted Average | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.1435 0.1378
Level 3 | Beneficial interest in Structured LLC | Loss estimate | Minimum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0000 0.0000
Level 3 | Beneficial interest in Structured LLC | Loss estimate | Maximum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.4264 0.8133
Level 3 | Beneficial interest in Structured LLC | Loss estimate | Weighted Average | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0655 0.0685
Level 3 | Beneficial interest in Structured LLC | Extension of loan | Minimum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs | month 48 48
Level 3 | Beneficial interest in Structured LLC | Extension of loan | Maximum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs | month 60 60
Level 3 | Mortgage servicing    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
MSRs $ 83 $ 80
Level 3 | Mortgage servicing | CPR | Minimum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0653 0.0648
Level 3 | Mortgage servicing | CPR | Maximum | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.3707 0.3982
Level 3 | Mortgage servicing | CPR | Weighted Average | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0694 0.0707
Level 3 | Mortgage servicing | Discount rate | Valuation Technique, Discounted Cash Flow    
Fair Value Inputs, Assets and Liabilities, Quantitative Information [Line Items]    
Unobservable inputs 0.0922 0.0922