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Investment Information - Narrative (Details) - USD ($)
$ in Millions
12 Months Ended
Dec. 31, 2024
Dec. 31, 2023
Disclosure Investment Information [Abstract]    
Equity securities, at fair value $ 1,675 $ 1,186
Minimum    
Schedule of Equity Method Investments [Line Items]    
Time lag for reporting 1 month  
Maximum    
Schedule of Equity Method Investments [Line Items]    
Time lag for reporting 3 months