v3.26.1
Investments - Investments by Category (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Schedule of Investments [Line Items]    
Current investments $ 959 $ 1,056
Long-term investments 19,037 18,471
Total investments 19,996 19,527
Debt securities    
Schedule of Investments [Line Items]    
Current investments 549 691
Long-term investments 7,901 7,671
Total investments 8,450 8,362
Equity securities    
Schedule of Investments [Line Items]    
Current investments 17 22
Long-term investments 3,756 3,534
Total investments 3,773 3,556
Commercial mortgage loans    
Schedule of Investments [Line Items]    
Current investments 88 86
Long-term investments 1,111 1,147
Total investments 1,199 1,233
Policy loans    
Schedule of Investments [Line Items]    
Current investments 0 0
Long-term investments 1,023 1,082
Total investments 1,023 1,082
Other long-term investments    
Schedule of Investments [Line Items]    
Current investments 0 0
Long-term investments 5,246 5,037
Total investments 5,246 5,037
Short-term investments    
Schedule of Investments [Line Items]    
Current investments 305 257
Long-term investments 0 0
Total investments $ 305 $ 257