INVESTMENTS - Contractual Maturities Narrative (Details) - USD ($) $ in Millions	Dec. 31, 2024	Dec. 31, 2023
ABS
Schedule Of Available For Sale Securities [Line Items]
Held to maturity securities with no single maturity date	$ 321	$ 591
Corporate debt
Schedule Of Available For Sale Securities [Line Items]
Held-to-maturity securities with maturity after one year through three years	28	0
Held-to-maturity securities with maturity after three years through ten years	$ 95	$ 95