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COMMITMENTS AND CONTINGENT LIABILITIES - Narrative (Details)
shares in Millions
 1 Months Ended
Apr. 30, 2019
USD ($)
shares
Mar. 31, 2023
USD ($)
Feb. 29, 2016
USD ($)
federalAction
legalAction
Loss Contingencies [Line Items]      
Unaccrued amounts of reasonably possible range of losses   $ 250,000,000  
Federal home loan bank stock   388,000,000  
Carrying value of collateral pledged for federal home loan bank   13,000,000,000  
Commitments by the Company to provide equity financing   1,300,000,000  
Face amount of mortgage loans   764,000,000  
Revolving Credit Facility      
Loss Contingencies [Line Items]      
Line of credit facility, maximum borrowing capacity   17,000,000  
Trust Notes      
Loss Contingencies [Line Items]      
Line of credit facility, maximum borrowing capacity   $ 10,000,000,000  
Equitable Financial      
Loss Contingencies [Line Items]      
Number of federal actions | federalAction     3
Pre-Capitalized Trust Securities, Redeemable February 15, 2029      
Loss Contingencies [Line Items]      
Shares issued (in shares) | shares 0.6    
Proceeds from offering $ 600,000,000    
Sale of stock, funding arrangement, period to issue senior notes to trust 10 years    
Sale of stock, semi-annual facility fee, rate 2.125%    
Pre-Capitalized Trust Securities, Redeemable February 15, 2049      
Loss Contingencies [Line Items]      
Shares issued (in shares) | shares 0.4    
Proceeds from offering $ 400,000,000    
Sale of stock, funding arrangement, period to issue senior notes to trust 30 years    
Sale of stock, semi-annual facility fee, rate 2.715%    
New York | Equitable Financial      
Loss Contingencies [Line Items]      
Number of actions | legalAction     2
Brach Family Foundation Litigation      
Loss Contingencies [Line Items]      
Liability for future policy benefits, face value of policy     $ 1,000,000