v3.25.4
FAIR VALUE MEASUREMENT - Valuation Techniques and Inputs for Level 3 Nonrecurring Fair Value Measurements (Details)
 12 Months Ended
Dec. 31, 2025
USD ($)
Dec. 31, 2024
USD ($)
Nonrecurring fair value changes included in earnings    
Nonrecurring fair value measurements included in earnings $ (108,000,000) $ (83,000,000)
Loans held-for-sale    
Nonrecurring fair value changes included in earnings    
Nonrecurring fair value measurements included in earnings (38,000,000) (10,000,000)
Other real estate owned    
Nonrecurring fair value changes included in earnings    
Nonrecurring fair value measurements included in earnings 0 0
Loans    
Nonrecurring fair value changes included in earnings    
Nonrecurring fair value measurements included in earnings (10,000,000) (44,000,000)
Non-marketable equity securities    
Nonrecurring fair value changes included in earnings    
Nonrecurring fair value measurements included in earnings (60,000,000) (29,000,000)
Level 3 | Price-based    
Valuation techniques and inputs    
Non-marketable equities   50,000,000
Level 3 | Comparables analysis    
Valuation techniques and inputs    
Non-marketable equities   222,000,000
Nonrecurring    
Valuation techniques and inputs    
Loans held-for-sale 641,000,000 684,000,000
Nonrecurring | Level 3    
Valuation techniques and inputs    
Loans held-for-sale 453,000,000 271,000,000
Loans 271,000,000  
Non-marketable equities   19,000,000
Other real estate owned   353,000,000
Nonrecurring | Level 3 | Price-based    
Valuation techniques and inputs    
Loans   136,000,000
Non-marketable equities 254,000,000  
Nonrecurring | Level 3 | Comparables analysis    
Valuation techniques and inputs    
Loans   $ 29,000,000
Non-marketable equities 96,000,000  
Price | Level 3 | Price-based | Low    
Valuation techniques and inputs    
Non-marketable equities, measurement input   0.54
Price | Level 3 | Price-based | High    
Valuation techniques and inputs    
Non-marketable equities, measurement input   2,960.96
Price | Level 3 | Price-based | Weighted average    
Valuation techniques and inputs    
Non-marketable equities, measurement input   432.84
Price | Nonrecurring | Level 3 | Price-based | Low    
Valuation techniques and inputs    
Loans held-for-sale, measurement input, value $ 83.00 $ 0
Non-marketable equities, measurement input 4.57  
Loans, measurement input   1.50
Price | Nonrecurring | Level 3 | Price-based | High    
Valuation techniques and inputs    
Loans held-for-sale, measurement input, value $ 100.00 $ 101.00
Non-marketable equities, measurement input 205.01  
Loans, measurement input   2,961
Price | Nonrecurring | Level 3 | Price-based | Weighted average    
Valuation techniques and inputs    
Loans held-for-sale, measurement input, value $ 98.66 $ 96.61
Non-marketable equities, measurement input 70.91  
Loans, measurement input   258.00
Appraised value | Nonrecurring | Level 3 | Price-based | Low    
Valuation techniques and inputs    
Non-marketable equities, measurement input   503,332
Appraised value | Nonrecurring | Level 3 | Price-based | High    
Valuation techniques and inputs    
Non-marketable equities, measurement input   7,220,000
Appraised value | Nonrecurring | Level 3 | Price-based | Weighted average    
Valuation techniques and inputs    
Non-marketable equities, measurement input   4,309,976
Appraised value | Nonrecurring | Level 3 | Recovery analysis | Low    
Valuation techniques and inputs    
Loans, measurement input 10,000  
Other real estate owned, measurement input, value   $ 10,000
Appraised value | Nonrecurring | Level 3 | Recovery analysis | High    
Valuation techniques and inputs    
Loans, measurement input 75,424,500  
Other real estate owned, measurement input, value   104,049,422
Appraised value | Nonrecurring | Level 3 | Recovery analysis | Weighted average    
Valuation techniques and inputs    
Loans, measurement input 30,328,429  
Other real estate owned, measurement input, value   $ 58,636,070
Revenue multiple | Level 3 | Comparables analysis | Low    
Valuation techniques and inputs    
Non-marketable equities, measurement input   4.50
Revenue multiple | Level 3 | Comparables analysis | High    
Valuation techniques and inputs    
Non-marketable equities, measurement input   16.31
Revenue multiple | Level 3 | Comparables analysis | Weighted average    
Valuation techniques and inputs    
Non-marketable equities, measurement input   11.97
Revenue multiple | Nonrecurring | Level 3 | Comparables analysis | Low    
Valuation techniques and inputs    
Non-marketable equities, measurement input 2.07  
Loans, measurement input   3.8
Revenue multiple | Nonrecurring | Level 3 | Comparables analysis | High    
Valuation techniques and inputs    
Non-marketable equities, measurement input 27.2  
Loans, measurement input   9.19
Revenue multiple | Nonrecurring | Level 3 | Comparables analysis | Weighted average    
Valuation techniques and inputs    
Non-marketable equities, measurement input 15.51  
Loans, measurement input   6.67
Recovery rate | Nonrecurring | Level 3 | Recovery analysis | Low    
Valuation techniques and inputs    
Loans, measurement input 0.3510  
Recovery rate | Nonrecurring | Level 3 | Recovery analysis | High    
Valuation techniques and inputs    
Loans, measurement input 0.8520  
Recovery rate | Nonrecurring | Level 3 | Recovery analysis | Weighted average    
Valuation techniques and inputs    
Loans, measurement input 0.6055