DERIVATIVES - Narrative (Details) - USD ($) $ in Millions	Jun. 30, 2024	Dec. 31, 2023
Derivative [Line Items]
Cash and securities collateral for derivative contract	$ 11,700	$ 8,300
Cash and securities collateral	113	75
S&P 500, Russell 1000, NASDAQ 100 and Emerging Market Indices
Derivative [Line Items]
Initial margin requirements	231	248
Us Treasury Notes Ultra Long Bonds And Euro Dollar
Derivative [Line Items]
Initial margin requirements	92	100
Euro Stoxx, FTSE100, Topix, ASX200 and EAFE Indices
Derivative [Line Items]
Initial margin requirements	$ 13	$ 14