v3.26.1
Investments (Net Investment Income - Narrative) (Details) - USD ($)
$ in Millions
3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Net Investment Income [Line Items]        
Net investment income $ 1,241 $ 1,285 $ 2,499 $ 2,582
Trading Securities        
Net Investment Income [Line Items]        
Investment gains (losses) on trading securities still held 2 (6) (8) 1
Other limited partnership interests        
Net Investment Income [Line Items]        
Net investment income $ 5 $ 63 $ 69 $ 119