v3.26.3
Fair Value Measurements - Schedule of Balances of Level 3 Assets and Liabilities Measured at Fair Value with Corresponding Pricing Sources (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Assets    
Debt securities $ 57,610 $ 50,791
Equity securities 257 172
Mortgage loans 557 324
Limited partnerships 324 250
Policy loans 4,398 4,426
Reinsurance recoverable on market risk benefits 17,514 19,518
Market risk benefit assets 8,489 7,867
Total 312,508 305,707
Liabilities    
Funds withheld payable under reinsurance treaties 13,066 14,960
Market risk benefit liabilities 2,920 3,754
Total 17,826 15,466
Freestanding derivative instruments 229 448
Corporate securities    
Assets    
Debt securities 34,930 32,916
Commercial mortgage-backed    
Assets    
Debt securities 1,986 1,829
Other asset-backed securities    
Assets    
Debt securities 7,992 5,388
Derivatives related to funds withheld under reinsurance treaties    
Liabilities    
Freestanding derivative instruments 1,996 1,770
Derivatives related to funds withheld under reinsurance treaties | Funds withheld embedded derivative    
Liabilities    
Freestanding derivative instruments 1,983 1,752
Level 3    
Assets    
Equity securities 12 7
Mortgage loans 557 324
Limited partnerships 324 250
Policy loans 3,535 3,537
Reinsurance recoverable on market risk benefits 87 118
Market risk benefit assets 8,489 7,867
Total 13,516 12,875
Liabilities    
Funds withheld payable under reinsurance treaties 1,741 1,971
Market risk benefit liabilities 2,920 3,754
Total 4,661 5,725
Freestanding derivative instruments 0 0
Level 3 | Internal    
Assets    
Equity securities 1 1
Mortgage loans 0 0
Limited partnerships 1 1
Policy loans 3,535 3,537
Reinsurance recoverable on market risk benefits 87 118
Market risk benefit assets 8,489 7,867
Total 12,189 11,639
Liabilities    
Funds withheld payable under reinsurance treaties 1,741 1,971
Market risk benefit liabilities 2,920 3,754
Total 4,661 5,725
Level 3 | External    
Assets    
Equity securities 11 6
Mortgage loans 557 324
Limited partnerships 323 249
Policy loans 0 0
Reinsurance recoverable on market risk benefits 0 0
Market risk benefit assets 0 0
Total 1,327 1,236
Liabilities    
Funds withheld payable under reinsurance treaties 0 0
Market risk benefit liabilities 0 0
Total 0 0
Level 3 | Corporate securities    
Assets    
Debt securities 122 346
Level 3 | Corporate securities | Internal    
Assets    
Debt securities 8 31
Level 3 | Corporate securities | External    
Assets    
Debt securities 114 315
Level 3 | Commercial mortgage-backed    
Assets    
Debt securities 15 0
Level 3 | Commercial mortgage-backed | Internal    
Assets    
Debt securities 0  
Level 3 | Commercial mortgage-backed | External    
Assets    
Debt securities 15  
Level 3 | Other asset-backed securities    
Assets    
Debt securities 375 426
Level 3 | Other asset-backed securities | Internal    
Assets    
Debt securities 68 84
Level 3 | Other asset-backed securities | External    
Assets    
Debt securities $ 307 $ 342