v3.26.3
Variable Interest Entities - Narrative (Details) - USD ($)
$ in Millions
3 Months Ended 9 Months Ended
Sep. 30, 2026
Sep. 30, 2025
Mar. 31, 2025
Sep. 30, 2026
Sep. 30, 2025
Variable Interest Entity [Line Items]          
Net gains (losses) on investments and derivatives $ (545) $ 252   $ 105 $ (241)
Variable Interest Entity, Primary Beneficiary          
Variable Interest Entity [Line Items]          
Net gains (losses) on investments and derivatives     $ (67)