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Fair Value - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2025
Sep. 30, 2024
Sep. 30, 2025
Sep. 30, 2024
Fair Value Disclosures [Abstract]        
Transfers out of Level 3 $ 23 $ 47 $ 55 $ 47