v3.26.1
BORROWINGS - Long-term Borrowings - Narrative (Details) - USD ($)
3 Months Ended
Mar. 31, 2026
Mar. 31, 2025
Mar. 03, 2026
Dec. 31, 2025
Debt Instrument [Line Items]        
Loss on extinguishment of debt $ 8,000,000 $ 0    
Minimum deposit 194,000,000     $ 212,000,000
Purchase Money Note        
Debt Instrument [Line Items]        
Partial prepayment 2,500,000,000      
Loss on extinguishment of debt $ 8,000,000      
Parent | Fixed-to-Floating Senior Notes at 4.869% | Subordinated Debt        
Debt Instrument [Line Items]        
Debt instrument, face amount     $ 500,000,000  
Debt instrument, stated interest rate     4.869%