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DERIVATIVES - Narrative (Details) - USD ($)
$ in Millions
Mar. 31, 2023
Dec. 31, 2022
Derivative [Line Items]    
Cash and securities collateral for derivative contract $ 5,200 $ 4,500
Cash and securities collateral 149 142
S&P 500, Russell 1000, NASDAQ 100 and Emerging Market Indices    
Derivative [Line Items]    
Initial margin requirement 258 247
Us Treasury Notes Ultra Long Bonds And Euro Dollar    
Derivative [Line Items]    
Initial margin requirement 74 113
Euro Stoxx, FTSE100, Topix, ASX200 and EAFE Indices    
Derivative [Line Items]    
Initial margin requirement $ 16 $ 16