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Contingencies, Commitments and Guarantees (Details) - USD ($)
6 Months Ended
Jun. 30, 2023
Dec. 31, 2022
Commitments and Contingencies Disclosure [Abstract]    
Amount of policy issued to plaintiff's $ 1,000,000  
Other Commitments [Line Items]    
Other commitments 4,700,000,000 $ 6,600,000,000
Affiliated Entity    
Other Commitments [Line Items]    
Contractual obligation $ 99,000,000