BORROWINGS - Narrative (Details) - USD ($)		12 Months Ended
	Jan. 28, 2026	Dec. 31, 2025	Dec. 31, 2024
Debt Instrument [Line Items]
Carrying value of assets pledged as collateral against repurchase agreements		$ 40,000,000	$ 224,000,000
Maturity term		60 days
Fixed-to-Floating Senior Notes Due January 28, 2032 | Fixed rate senior notes | Subsequent Event
Debt Instrument [Line Items]
Debt instrument, face amount	$ 1,000,000,000
Debt stated interest rate	4.623%
Basis spread on variable rate	0.99%
Fixed Rate Subordinated Note | Fixed rate subordinated notes | Subsequent Event
Debt Instrument [Line Items]
Debt instrument, face amount	$ 750,000,000
Debt stated interest rate	5.605%