v3.26.1
Investments - Investments - Net Realized Capital Gains (Details) - USD ($)
$ in Millions
 3 Months Ended 6 Months Ended
Jun. 30, 2026
Jun. 30, 2025
Jun. 30, 2026
Jun. 30, 2025
Schedule of Investments [Line Items]        
Gain (Loss) on Sale of Other Investments $ (31) $ (20) $ (54) $ (47)
Net realized gains (losses) 64 (19) 12 (68)
Proceeds from Sale of Debt Securities, Available-for-sale     5,772 4,755
Transfer to Investments 264 0 264 0
Debt Securities [Member]        
Schedule of Investments [Line Items]        
Proceeds from Sale of Debt Securities, Available-for-sale 1,600 1,700 3,000 2,700
Not Designated as Hedging Instrument        
Schedule of Investments [Line Items]        
Translation Adjustment Functional to Reporting Currency, Increase (Decrease), Gross of Tax (6) (8) (3) (18)
Non-qualifying foreign currency derivatives (13) (11) (5) (11)
Realized Investment Gains Losses        
Schedule of Investments [Line Items]        
Equity Securities, FV-NI, Unrealized Gain (Loss) 121 27 104 14
Total Fixed Maturities, AFS        
Schedule of Investments [Line Items]        
Debt Securities, Available-for-sale, Realized Gain 10 19 28 32
Gross losses on sales of fixed maturities (36) (45) (66) (70)
Change in ACL on fixed maturities, AFS 0 0 0 2
Equity Securities [Member]        
Schedule of Investments [Line Items]        
Equity Securities, FV-NI, Realized Gain (Loss) 2 1 4 1
Equity Securities, FV-NI, Unrealized Gain (Loss) 119 26 100 14
Equity securities 121 27 104 15
Mortgages [Member]        
Schedule of Investments [Line Items]        
Change in ACL on mortgage loans $ 0 $ 0 $ 0 $ 0