v3.26.3
Fair Value Measurements - Assets and liabilities measured at fair value on a recurring basis (Details) - USD ($)
$ in Millions
Sep. 30, 2026
Dec. 31, 2025
Sep. 30, 2025
Assets:      
Bonds available-for-sale [1] $ 182,757 $ 189,381  
Other bond securities [1] 5,187 5,407  
Equity securities [1] 50 79  
Derivative assets 11,784 10,029  
Counterparty Netting (7,351) (6,106)  
Cash Collateral (3,961) (3,482)  
Total derivative assets 472 441  
Short-term investments [1] 4,493 5,675  
Market risk benefit assets, at fair value 2,348 2,392  
Separate account assets 94,707 95,585  
Liabilities:      
Policyholder contract deposit 194,343 188,876 $ 187,100
Derivative liabilities 9,129 7,091  
Counterparty Netting (7,351) (6,106)  
Cash Collateral (1,369) (686)  
Total derivative liabilities 409 299  
Market risk benefit liabilities 7,223 7,309  
Private equity funds/hedge funds 8,316 8,123  
Private equity funds      
Liabilities:      
Private equity funds/hedge funds 7,100 6,500  
Hedge funds      
Liabilities:      
Private equity funds/hedge funds 90 121  
Recurring Basis      
Assets:      
Bonds available-for-sale 182,757 189,381  
Other bond securities 5,187 5,407  
Equity securities 50 79  
Other invested assets 1,374 1,498  
Counterparty Netting (7,351) (6,106)  
Cash Collateral (3,961) (3,482)  
Counterparty netting and cash collateral (11,312) (9,588)  
Total derivative assets 472 441  
Short-term investments 1,891 1,624  
Market risk benefit assets, at fair value 2,348 2,392  
Separate account assets 94,707 95,585  
Total 288,786 296,407  
Liabilities:      
Policyholder contract deposit 12,755 12,156  
Counterparty Netting (7,351) (6,106)  
Cash Collateral (1,369) (686)  
Counterparty netting and cash collateral (8,720) (6,792)  
Total derivative liabilities 409 299  
Fortitude Re funds withheld payable 2,988 3,795  
Other liabilities (7)    
Other liabilities   23  
Market risk benefit liabilities 7,223 7,309  
Total 23,368 23,582  
Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 5 10  
Other bond securities 0 0  
Equity securities 8 10  
Other invested assets 0 0  
Derivative assets 0 6  
Short-term investments 1,177 661  
Market risk benefit assets, at fair value 0 0  
Separate account assets 90,691 91,582  
Total 91,881 92,269  
Liabilities:      
Policyholder contract deposit 0 0  
Derivative liabilities 2 7  
Fortitude Re funds withheld payable 0 0  
Other liabilities 0    
Other liabilities   0  
Market risk benefit liabilities 0 0  
Total 2 7  
Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 160,948 158,838  
Other bond securities 3,667 3,867  
Equity securities 0 0  
Other invested assets 0 0  
Derivative assets 11,328 9,124  
Short-term investments 714 963  
Market risk benefit assets, at fair value 0 0  
Separate account assets 4,016 4,003  
Total 180,673 176,795  
Liabilities:      
Policyholder contract deposit 206 134  
Derivative liabilities 8,885 6,960  
Fortitude Re funds withheld payable 0 0  
Other liabilities (7)    
Other liabilities   23  
Market risk benefit liabilities 0 0  
Total 9,084 7,117  
Level 3      
Assets:      
Market risk benefit assets, at fair value 2,348 2,392 2,500
Liabilities:      
Market risk benefit liabilities 7,200   $ 7,000
Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 21,804 30,533  
Other bond securities 1,520 1,540  
Equity securities 42 69  
Other invested assets 1,374 1,498  
Derivative assets 456 899  
Short-term investments 0 0  
Market risk benefit assets, at fair value 2,348 2,392  
Separate account assets 0 0  
Total 27,544 36,931  
Liabilities:      
Policyholder contract deposit 12,549 12,022  
Derivative liabilities 242 124  
Fortitude Re funds withheld payable 2,988 3,795  
Other liabilities 0    
Other liabilities   0  
Market risk benefit liabilities 7,223 7,309  
Total 23,002 23,250  
Interest rate contracts | Recurring Basis      
Assets:      
Derivative assets 1,413 916  
Liabilities:      
Derivative liabilities 3,502 1,633  
Interest rate contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Interest rate contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 1,388 894  
Liabilities:      
Derivative liabilities 3,378 1,611  
Interest rate contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 25 22  
Liabilities:      
Derivative liabilities 124 22  
Foreign exchange contracts | Recurring Basis      
Assets:      
Derivative assets 756 711  
Liabilities:      
Derivative liabilities 420 554  
Foreign exchange contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Foreign exchange contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 756 711  
Liabilities:      
Derivative liabilities 420 554  
Foreign exchange contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Equity contracts | Recurring Basis      
Assets:      
Derivative assets 9,194 8,388  
Liabilities:      
Derivative liabilities 5,183 4,900  
Equity contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0 6  
Liabilities:      
Derivative liabilities 2 7  
Equity contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 8,825 7,519  
Liabilities:      
Derivative liabilities 5,087 4,795  
Equity contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 369 863  
Liabilities:      
Derivative liabilities 94 98  
Credit contracts | Recurring Basis      
Assets:      
Derivative assets 401    
Liabilities:      
Derivative liabilities 23    
Credit contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0    
Liabilities:      
Derivative liabilities 0    
Credit contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 359    
Liabilities:      
Derivative liabilities 0    
Credit contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 42    
Liabilities:      
Derivative liabilities 23    
Other contracts | Recurring Basis      
Assets:      
Derivative assets 20 14  
Liabilities:      
Derivative liabilities 1 4  
Other contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Other contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Other contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 20 14  
Liabilities:      
Derivative liabilities 1 4  
U.S. government and government sponsored entities      
Assets:      
Bonds available-for-sale 1,258 1,337  
U.S. government and government sponsored entities | Recurring Basis      
Assets:      
Bonds available-for-sale 1,258 1,337  
Other bond securities 170 192  
U.S. government and government sponsored entities | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 5 10  
Other bond securities 0 0  
U.S. government and government sponsored entities | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 1,253 1,327  
Other bond securities 170 192  
U.S. government and government sponsored entities | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
Obligations of states, municipalities and political subdivisions      
Assets:      
Bonds available-for-sale 3,654 4,486  
Obligations of states, municipalities and political subdivisions | Recurring Basis      
Assets:      
Bonds available-for-sale 3,654 4,486  
Other bond securities 31 34  
Obligations of states, municipalities and political subdivisions | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
Obligations of states, municipalities and political subdivisions | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 2,977 3,725  
Other bond securities 30 33  
Obligations of states, municipalities and political subdivisions | Level 3      
Assets:      
Bonds available-for-sale 653 723  
Obligations of states, municipalities and political subdivisions | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 677 761  
Other bond securities 1 1  
Non-U.S. governments      
Assets:      
Bonds available-for-sale 3,624 4,487  
Non-U.S. governments | Recurring Basis      
Assets:      
Bonds available-for-sale 3,624 4,487  
Other bond securities 68 75  
Non-U.S. governments | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
Non-U.S. governments | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 3,624 4,487  
Other bond securities 68 75  
Non-U.S. governments | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
Corporate debt      
Assets:      
Bonds available-for-sale 117,017 122,071  
Corporate debt | Recurring Basis      
Assets:      
Bonds available-for-sale 117,017 122,071  
Other bond securities 2,780 2,914  
Corporate debt | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
Corporate debt | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 116,130 121,390  
Other bond securities 2,203 2,709  
Corporate debt | Level 3      
Assets:      
Bonds available-for-sale 1,382 701  
Corporate debt | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 887 681  
Other bond securities 577 205  
RMBS      
Assets:      
Bonds available-for-sale 17,390 16,350  
RMBS | Recurring Basis      
Assets:      
Bonds available-for-sale 17,390 16,350  
Other bond securities 130 137  
RMBS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
RMBS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 14,201 10,495  
Other bond securities 86 50  
RMBS | Level 3      
Assets:      
Bonds available-for-sale 2,478 2,847  
RMBS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 3,189 5,855  
Other bond securities 44 87  
CMBS      
Assets:      
Bonds available-for-sale 8,946 9,307  
CMBS | Recurring Basis      
Assets:      
Bonds available-for-sale 8,946 9,307  
Other bond securities 200 217  
CMBS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
CMBS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 8,323 8,563  
Other bond securities 193 201  
CMBS | Level 3      
Assets:      
Bonds available-for-sale 445 696  
CMBS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 623 744  
Other bond securities 7 16  
CLO      
Assets:      
Bonds available-for-sale 8,518 9,092  
CLO | Recurring Basis      
Assets:      
Bonds available-for-sale 8,518 9,092  
Other bond securities 585 585  
CLO | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
CLO | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 6,449 7,037  
Other bond securities 547 542  
CLO | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 2,069 2,055  
Other bond securities 38 43  
ABS      
Assets:      
Bonds available-for-sale 22,350 22,251  
ABS | Recurring Basis      
Assets:      
Bonds available-for-sale 22,350 22,251  
Other bond securities 1,223 1,253  
ABS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities 0 0  
ABS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 7,991 1,814  
Other bond securities 370 65  
ABS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 14,359 20,437  
Other bond securities $ 853 $ 1,188  
[1] See Note 8 for details of balances associated with variable interest entities