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FAIR VALUE MEASUREMENTS AND DERIVATIVE INSTRUMENTS (Credit Risk) (Details) - USD ($)
Jun. 30, 2023
Dec. 31, 2022
Derivative [Line Items]    
FV of derivative instruments in net liability position with credit risk related features, including normal purchase normal sale $ 22,000,000 $ 86,000,000
Collateral posted 0  
Additional collateral required to post if credit-risk contingent features are triggered 22,000,000  
Amount relating to outstanding net payable balances for settled positions    
Derivative [Line Items]    
Assets needed for immediate settlement, aggregate fair value $ 15,000,000