v3.26.1
Fair Value Measurements - Assets and liabilities measured at fair value on a recurring basis (Details) - USD ($)
$ in Millions
Jun. 30, 2026
Dec. 31, 2025
Jun. 30, 2025
Assets:      
Bonds available-for-sale [1] $ 189,439 $ 189,381  
Other bond securities, at fair value [1] 5,302 5,407  
Equity securities [1] 50 79  
Derivative assets 12,321 10,029  
Counterparty Netting (7,501) (6,106)  
Cash Collateral (3,844) (3,482)  
Total derivative assets 976 441  
Short-term investments [1] 4,587 5,675  
Market risk benefit assets, at fair value 2,492 2,392  
Separate account assets 98,771 95,585  
Liabilities:      
Policyholder contract deposit 193,225 188,876 $ 182,187
Derivative liabilities 8,607 7,091  
Counterparty Netting (7,501) (6,106)  
Cash Collateral (828) (686)  
Total derivative liabilities 278 299  
Market risk benefit liabilities 7,723 7,309  
Private equity funds/hedge funds 8,179 8,123  
Private equity funds      
Liabilities:      
Private equity funds/hedge funds 6,600 6,500  
Hedge funds      
Liabilities:      
Private equity funds/hedge funds 96 121  
Recurring Basis      
Assets:      
Bonds available-for-sale 189,439 189,381  
Other bond securities, at fair value 5,302 5,407  
Equity securities 50 79  
Other invested assets 1,472 1,498  
Counterparty Netting (7,501) (6,106)  
Cash Collateral (3,844) (3,482)  
Counterparty netting and cash collateral (11,345) (9,588)  
Total derivative assets 976 441  
Short-term investments 1,824 1,624  
Market risk benefit assets, at fair value 2,492 2,392  
Separate account assets 98,771 95,585  
Total 300,326 296,407  
Liabilities:      
Policyholder contract deposit 13,568 12,156  
Counterparty Netting (7,501) (6,106)  
Cash Collateral (828) (686)  
Counterparty netting and cash collateral (8,329) (6,792)  
Total derivative liabilities 278 299  
Fortitude Re funds withheld payable 3,971 3,795  
Other liabilities (55)    
Other liabilities   23  
Market risk benefit liabilities 7,723 7,309  
Total 25,485 23,582  
Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 11 10  
Other bond securities, at fair value 0 0  
Equity securities 8 10  
Other invested assets 0 0  
Derivative assets 4 6  
Short-term investments 834 661  
Market risk benefit assets, at fair value 0 0  
Separate account assets 94,713 91,582  
Total 95,570 92,269  
Liabilities:      
Policyholder contract deposit 0 0  
Derivative liabilities 0 7  
Fortitude Re funds withheld payable 0 0  
Other liabilities 0    
Other liabilities   0  
Market risk benefit liabilities 0 0  
Total 0 7  
Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 168,798 158,838  
Other bond securities, at fair value 3,881 3,867  
Equity securities 0 0  
Other invested assets 0 0  
Derivative assets 11,622 9,124  
Short-term investments 990 963  
Market risk benefit assets, at fair value 0 0  
Separate account assets 4,058 4,003  
Total 189,349 176,795  
Liabilities:      
Policyholder contract deposit 144 134  
Derivative liabilities 8,388 6,960  
Fortitude Re funds withheld payable 0 0  
Other liabilities (55)    
Other liabilities   23  
Market risk benefit liabilities 0 0  
Total 8,477 7,117  
Level 3      
Assets:      
Market risk benefit assets, at fair value 2,492 2,392 1,300
Liabilities:      
Market risk benefit liabilities 7,700   $ 6,300
Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 20,630 30,533  
Other bond securities, at fair value 1,421 1,540  
Equity securities 42 69  
Other invested assets 1,472 1,498  
Derivative assets 695 899  
Short-term investments 0 0  
Market risk benefit assets, at fair value 2,492 2,392  
Separate account assets 0 0  
Total 26,752 36,931  
Liabilities:      
Policyholder contract deposit 13,424 12,022  
Derivative liabilities 219 124  
Fortitude Re funds withheld payable 3,971 3,795  
Other liabilities 0    
Other liabilities   0  
Market risk benefit liabilities 7,723 7,309  
Total 25,337 23,250  
Interest rate contracts | Recurring Basis      
Assets:      
Derivative assets 934 916  
Liabilities:      
Derivative liabilities 1,928 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 901 894  
Liabilities:      
Derivative liabilities 1,907 1,611  
Interest rate contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 33 22  
Liabilities:      
Derivative liabilities 21 22  
Foreign exchange contracts | Recurring Basis      
Assets:      
Derivative assets 912 711  
Liabilities:      
Derivative liabilities 464 554  
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 912 711  
Liabilities:      
Derivative liabilities 464 554  
Foreign exchange contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 0 0  
Liabilities:      
Derivative liabilities 0 0  
Equity contracts | Recurring Basis      
Assets:      
Derivative assets 10,042 8,388  
Liabilities:      
Derivative liabilities 6,197 4,900  
Equity contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 4 6  
Liabilities:      
Derivative liabilities 0 7  
Equity contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 9,404 7,519  
Liabilities:      
Derivative liabilities 6,017 4,795  
Equity contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 634 863  
Liabilities:      
Derivative liabilities 180 98  
Other contracts | Recurring Basis      
Assets:      
Derivative assets 15 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 15 14  
Liabilities:      
Derivative liabilities 1 4  
Credit contracts | Recurring Basis      
Assets:      
Derivative assets 418    
Liabilities:      
Derivative liabilities 17    
Credit contracts | Level 1 | Recurring Basis      
Assets:      
Derivative assets 0    
Liabilities:      
Derivative liabilities 0    
Credit contracts | Level 2 | Recurring Basis      
Assets:      
Derivative assets 405    
Liabilities:      
Derivative liabilities 0    
Credit contracts | Level 3 | Recurring Basis      
Assets:      
Derivative assets 13    
Liabilities:      
Derivative liabilities 17    
U.S. government and government sponsored entities      
Assets:      
Bonds available-for-sale 1,345 1,337  
U.S. government and government sponsored entities | Recurring Basis      
Assets:      
Bonds available-for-sale 1,345 1,337  
Other bond securities, at fair value 194 192  
U.S. government and government sponsored entities | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 11 10  
Other bond securities, at fair value 0 0  
U.S. government and government sponsored entities | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 1,334 1,327  
Other bond securities, at fair value 194 192  
U.S. government and government sponsored entities | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
Obligations of states, municipalities and political subdivisions      
Assets:      
Bonds available-for-sale 3,989 4,486  
Obligations of states, municipalities and political subdivisions | Recurring Basis      
Assets:      
Bonds available-for-sale 3,989 4,486  
Other bond securities, at fair value 33 34  
Obligations of states, municipalities and political subdivisions | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
Obligations of states, municipalities and political subdivisions | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 3,242 3,725  
Other bond securities, at fair value 32 33  
Obligations of states, municipalities and political subdivisions | Level 3      
Assets:      
Bonds available-for-sale 723 723  
Obligations of states, municipalities and political subdivisions | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 747 761  
Other bond securities, at fair value 1 1  
Non-U.S. governments      
Assets:      
Bonds available-for-sale 3,928 4,487  
Non-U.S. governments | Recurring Basis      
Assets:      
Bonds available-for-sale 3,928 4,487  
Other bond securities, at fair value 74 75  
Non-U.S. governments | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
Non-U.S. governments | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 3,928 4,487  
Other bond securities, at fair value 74 75  
Non-U.S. governments | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
Corporate debt      
Assets:      
Bonds available-for-sale 122,213 122,071  
Corporate debt | Recurring Basis      
Assets:      
Bonds available-for-sale 122,213 122,071  
Other bond securities, at fair value 2,938 2,914  
Corporate debt | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
Corporate debt | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 121,395 121,390  
Other bond securities, at fair value 2,331 2,709  
Corporate debt | Level 3      
Assets:      
Bonds available-for-sale 1,368 701  
Corporate debt | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 818 681  
Other bond securities, at fair value 607 205  
RMBS      
Assets:      
Bonds available-for-sale 17,444 16,350  
RMBS | Recurring Basis      
Assets:      
Bonds available-for-sale 17,444 16,350  
Other bond securities, at fair value 136 137  
RMBS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
RMBS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 14,451 10,495  
Other bond securities, at fair value 95 50  
RMBS | Level 3      
Assets:      
Bonds available-for-sale 2,278 2,847  
RMBS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 2,993 5,855  
Other bond securities, at fair value 41 87  
CMBS      
Assets:      
Bonds available-for-sale 9,059 9,307  
CMBS | Recurring Basis      
Assets:      
Bonds available-for-sale 9,059 9,307  
Other bond securities, at fair value 204 217  
CMBS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
CMBS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 8,569 8,563  
Other bond securities, at fair value 197 201  
CMBS | Level 3      
Assets:      
Bonds available-for-sale 455 696  
CMBS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 490 744  
Other bond securities, at fair value 7 16  
CLO      
Assets:      
Bonds available-for-sale 8,746 9,092  
CLO | Recurring Basis      
Assets:      
Bonds available-for-sale 8,746 9,092  
Other bond securities, at fair value 567 585  
CLO | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
CLO | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 6,507 7,037  
Other bond securities, at fair value 536 542  
CLO | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 2,239 2,055  
Other bond securities, at fair value 31 43  
ABS      
Assets:      
Bonds available-for-sale 22,715 22,251  
ABS | Recurring Basis      
Assets:      
Bonds available-for-sale 22,715 22,251  
Other bond securities, at fair value 1,156 1,253  
ABS | Level 1 | Recurring Basis      
Assets:      
Bonds available-for-sale 0 0  
Other bond securities, at fair value 0 0  
ABS | Level 2 | Recurring Basis      
Assets:      
Bonds available-for-sale 9,372 1,814  
Other bond securities, at fair value 422 65  
ABS | Level 3 | Recurring Basis      
Assets:      
Bonds available-for-sale 13,343 20,437  
Other bond securities, at fair value $ 734 $ 1,188  
[1] See Note 8 for details of balances associated with variable interest entities